صفحه اعضا هیئت علمی - دانشکده مهندسی آب و محیط زیست
Professor
Update: 2025-03-03
Saeed Boroomand-Nasab
دانشکده مهندسی آب و محیط زیست / گروه آبیاری و زهکشی
P.H.D dissertations
-
اثر عمق و فاصله گذاری زهكشهای زیرزمینی بر تجمع نمك در منطقه ریشه و شبیه سازی با مدل Hydrus-2D ( مطالعه موردی شبكه آبیاری و زهكشی گمبوعه استان خوزستان)
محمد شكیبانیا 1403 -
بررسی عملكرد كاهو و بیلان نیترات تحت سطوح مختلف آبیاری و بیوچار بستر قارچ در اقلیم اهواز
محمد والی پور 1402 -
بررسی عملکرد پارامترهای موثر در تالاب مصنوعی با جریان افقی زیر سطحی و استفاده از بیوچار جهت کاهش نیترات از زهاب شبیه سازی شده.
مریم قربانی 1401 -
بهینه سازی شبکه پایش تراز آب زیرزمینی (مطالعه موردی : اراضی کشت و صنعت نیشکر سلمان فارسی)
عاطفه صیادی شهركی 1400 -
بهینهسازی پارامترهای دبی و زمان قطع جریان در آبیاری جویچهای با استفاده از روش تحلیل شبکهای و الگوریتم بهینهسازی ازدحام ذرات
محسن احمدی 1399 -
ارزیابی شاخص تنش آبی گیاه (CWSI) برای سیبزمینی تحت رژیمهای متفاوت آبیاری در سیستمهای آبیاری قطرهای سطحی و زیر سطحی
كبری خیری شلمزاری 1398 -
بکارگیری روش سنجش از دور در صحت سنجی مدل AquaCrop برای گیاه گندم در مناطق جنوب ایران
محمدهادی جرعه نوش 1398 -
بررسی نقش گیاهان (سالیکورنیا، لویی و سازو)، بسترها و پارامترهای هیدرولیکی جریان در حذف آلاینده ها از محلولهای آبی در تالابهای مصنوعی زیرسطحی
زینب میخك بیرانوند 1398 -
ارزیابی روشهای آبیاری چگالشی و تقطیری در بسترهای شن، باگاس و پرلایت در گلخانههای کوچک در اهواز
لیلا قاسمی 1398 -
بهرهبرداری بهینه از آب آبیاری با در نظرگرفتن مسئله شوری در شبکه آبیاری و زهکشی گتوند – عقیلی
حسین رحمتی 1398 -
بررسی تاثیر کاربرد بیوچار و هیدروچار کاه گندم بر عملکرد و اجزای عملکرد گیاه ذرت و برخی خصوصیات خاک لوم شنی.
ایمان نیك روش 1397 -
ارزیابی و شناسایی فاکتورهای موثر بر عملکرد آبیاری چگالشی توسط مدل شبیه ساز CI2D، مدلسازی فیزیکی
یوسفی-باقر 1396Condensation irrigation (CI) is a method to combine desalination and irrigation. In such systems, solar energy could be used to provide needed energy. By letting air flow over the water surface in a solar still with saline or polluted water, the air will be humidified. Then the vapor-saturated airflow is led into buried pipes, where the air gradually cools and the water precipitates along the inner pipe surface. In this study heat and moisture transfer in the soil, simulation of condensation irrigation, specific effective factors and their effects on system and enhancing its efficiency have been studied in three parts: The first part includes using the data of field experiment, which was done by Yousefi (2011-2012) at Research Farm No.1 at the Shahid Chamran University of Ahvaz. In this part, perforated PVC pipes with 6.3cm diameter and 25m length at a depth of 40cm were used. New studies showed that increasing the soil temperature at the beginning of the system indicates the more vapor condensation and the average irrigation rate at the top of pipe and in the root zone is 1.5 mm/day. In the second part, to investigate and simulate the theory of potential of the condensation irrigation system performance at field No.1, a 2D two-phase non-isothermal simulator CI2D was used which showed that for maximum performance in the field, a pipe with a diameter of 10 cm and a length of 25 m or shorter, and a more powerful fan should be used, and the depth of the pipe location should be reduced to 20 cm and the inlet humid air temperature should be increased to 70c. And in the third part, to develop an understanding of the CI system a small scale laboratory CI system was constructed and tested in the laboratory of the faculty of agriculture, University of Jahrom. The dimensions of the soil column, were 40 * 60 * 60 cm, with a pipe with diameter of 6.3 cm that the upper part of the pipe was located at a depth of 0.20 m from the sand surface. All of the flow characteristics such as relative humidity, temperature, velocity and pressure at before and after of the soil column and soil temperature at the 10 specified locations in the sand during the experiments hourly were measured. Also, after each experiment, 54 moisture samples were collected from different depths and new soil replaced the previous experiment soil. Seven experiments under different condition during a four month period were carried out to investigate the effects of time, soil type, surface cover, use of cool night air and inlet flow temperature factors on a condensation irrigation system and enhance our understanding from system. Sensitivity analysis and experiments indicates inlet air temperature and anything like the cool night air that affects the soil temperature as being the most dominating factors influencing on CI system. Also, the stored moisture content in fine sands in compare with very fine sands increased, and with plastic cover, the stored moisture content in the soil decreased and the location of the pipe also should be determined based on root depth.
-
بررسی تأثیر مدیریت های مختلف زراعی بر بهره وری آب و دینامیک نمک در خاک تحت شرایط آبیاری با آب شور و شبیه سازی آن با مدل AquaCrop (مطالعه موردی ذرت)
حیدری نیا-مولود 1395Nowadays due to the high quality water resources reduction, ever increasing population demand and rising of competition between different parts of domestic, industial and agriculture, gradual reduction of high quality water allocation to agriculture part is not expected and the use of saline water resources is inevitable. So to avoid of water crisis intensify, suitable management strategies application for optimal use of unconventional resources seems necessary. Different methods of crop residues application are from the agriculture management strategies category that can be applied to reduce the damages of irrigation with saline water. This study was carried out to investigat the effects of different agriculture managements on water productivity of Maize and and salt dynamics in soil under irrigation with saline water in the spring and summer planting. Factorial experiment was conducted based on randomized complete block design in lysimeter scale. In this study, the effect of three agriculture management strategy including; without use of crop residues (M1), use of crop residues on soil surface as mulch (M2) and mix of crop residues with surface soil layer to 30 cm depth (M3) in combination with three level of salinity including S1: salinity of Karoun river (on average 2dS/m), S2: 4.5 dS/m and S3: 7 dS/m were investigated on Maize evapotranspiration, yield and some of its components, water productivity, water use efficiency and salt dynamics in soil. The results showed that salinity increasing was caused to decrease evapotranspiration significantly in probability level of 1%. M2 management reduced evaporanspiration 8.6% and 11.2% and M3 management decreased it 1.6% and 3.5% in the spring and summer planting respectively. Crop residues moderated the amount of ET reduction in salinity condition, leached out the soil surface layer and transfered the salts to lower layers too. This matter was observed in M2 management with more intense than M3 management. Use of crop resiues as mulch and mix of them with soil caused to reduce salinity of water drainage and the effect of them was more evident with salinity increasing. So that, at the end of spring planting the effect of M1 and M2 managements application were obtained 6.2% and 1.9% in S1 salinity respectively, 11.3% and 5.8% respevtively in the S2 salinity and 15.3% and 9.6% respectively in S3 salinity and at the end of summer planting, they were 8.8% and 3.9% in S1 salinity respectively, 12.7% and 6.2% respevtively in the S2 salinity and 16.7% and 10.3% respectively in S3 salinity. In the spring and summer planting, the effect of salinity, agriculture management and their interaction on yield and some of its components were significant in probability level of 1%. Performance reduction for per uni of salinity increasing in the spring and summer planting for yield was 11.7% and 14.9% respectively and for biomass was 10.8% and 13.7% respectively. With yield reduction due to salinity, water productivity and water use efficiendy decreased significantly too. In the spring planting, water productivity in M2 and M3 managements were respectively 9.2% and 6.1% and in the summer planting were respectively 13.9% and 7.0% more than M1 management. Also for water use efficiency, M2 and M3 managements with increasing about 20.9% and 7.7% repectively in spring planting and 30.4% and 12.5% respectively in summer planting caused to significant difference between the values of water use efficiency in probability level of 1%. The greatest impact of agriculture management methods on performance and water productivity and water use efficiency indicators was observed in S2 salinity. The effect of Wheat straw especially as mulch on leaching and water absorption facilation was of the main reasons of it. Finally,in order to assess the ability of the AquaCrop model to simulat yield, biomass, canopy cover, water use efficieny and soil salinity under salinity and agriculture management condition, it was calibrated and validated. Model effectiveness to predict all parameters was satisfactory. But, the greates accuracy was observed in performance prediction. So that, the values of normalized root mean squar error (NRMSE), coefficient of residual mass (CRM), relative error (RE) and coefficient of determination (R2) for it in the spring planting were 4.17%, -0.021, 3.2% and 0.9941 respectively and in the summer planting were 5.08%, -0.016, 4.7% and 0.9928 respectively.
-
تأثیر مدیریت های مختلف کم آبیاری بر کارایی مصرف آب سیب زمینی در دو روش جویچه ای و قطره ای نواری
بیژن حقیقتی بروجنی 1394Serious attention to water crisis and the increase in population necessitate improvement of efficiency of water usage. Application of new methods of irrigation and deficit irrigation management is a way to optimize the use of available water resources. In order to evaluate and compare furrow and tape drip irrigation methods, regulated deficit irrigation (RDI) and partial root-zone drying (PRD) on water productivity, water use efficiency and quantitative and qualitative characteristics of two potato cultivars, an experiment was performed at Shahrekord Research Station of Agricultural and Natural Resources Research Center of Chaharmahal-va- Bakhtiari province in 2013-2014. The experiment was based on randomized complete block design as split-split plot with three replications. The furrow and tape drip irrigation methods were allocated to the main plots, while the two potato cultivars were in the sub-plots and four deficit irrigation managements including FI(100%), RDI80(80%), RDI65(65%) of available water depletion (AWD), and partial root-zone drying (PRD) during growth period were in the secondary sub-plots. The effect of deficit irrigation were significant (P≤0.01) on tubers yield, number of tuber per plant, size of tuber, dry matter percentage of tuber, tuber bulk density, tuber starch percentage, leaf proline and chlorophyll, water use efficiency and water productivity. Maximum tuber yield (59.1 ton/ha) was obtained from Burren cultivar and tape drip irrigation in full irrigation and minimum tuber yield (22.9 ton/ha) was obtained from Almera cultivar and furrow irrigation in deficit irrigation management RDI65 (65% of available water depletion). The maximum water use efficiency (14.70 Kg/m3) was obtained from partial root-zone drying (PRD) treatment. The minimum water use efficiency (8.59 Kg/m3) was obtained from deficit irrigation management RDI65. The maximum water productivity indicators CPD, BPD, NBPD were 11.59kg/m3, 115940 Rials/m3, 74620 Rial/m3 respectively, in deficit irrigation management PRD. Drip irrigation in comparison with furrow irrigation resulted in reduction of irrigation water amount (42%), increase in yield (5%), water use efficiency (24%) and water productivity indicators CPD (44%), BPD (44%), NBPD, (41%). Burren cultivar in comparison with Almera showed increase in yield (16.7%), water use efficiency (17%) and water productivity indicators CPD, BPD, NBPD (17%, 17%, 27%). Optimization of water depth critical indicators in furrow and tape drip irrigation methods showed that the maximum of water saving in tape drip irrigation in comparison with furrow irrigation in full irrigation was 42.6% that the planting area would increase by 74.3%. The maximum net benefit with the planting area would increase (798138 Rails) was obtained Burren cultivar and tape drip irrigation in full irrigation. In water limitation condition, the maximum net benefit with the planting area would increase (465184 Rail) in comparison with full irrigation was obtained from tape drip irrigation and Burren cultivar. Therefore, due to the limitation of water resources, for optimizing water use, the best suggestions are using Burren cultivar with high yield potential and suitable quality, tape drip irrigation and partial root-zone drying (PRD) and RDI80 deficit irrigation management for potato production. Suitable economic irrigation water depth for furrow and tape drip irrigation are recommended 644.5 and 374.4 mm, respectively for Shahrekord and other same regions.
-
بررسی اثر شوری آب آبیاری بر عملکرد ذرت با استفاده از شاخص CWSI و شبیه سازی آن با مدل AquaCrop ، تحت شرایط تغییر اقلیم ( مطالعه موردی: منطقه اهواز)
مهری سعیدی نیا 1394The shortage of water resources with high quality is becoming an important issue in the arid and semi-arid regions. For this reason the availability of marginal quality water resources such as drainage water, saline water and treated wastewater has become important consideration. This study was carried out to investigate the effects of Saline Water Irrigation Effects on Maize (SC704 & Mobin Variety) yield Using CWSI and Simulation with AquaCrop model under Climate Change Scenarios in Summer and Spring Season (2013-2014 years). Research consisted of five quality treatments of irrigation water (S0: Water Caroon, S1: EC= 3.5dS/m, S2: EC=4.5dS/m, S3: EC=5.5dS/m and S4: EC=6.5 dS/m) was designed at the research station of Shahid Chamran University. In the Summer growing Season. Lower baseline equation for Summer maize was equal: (Tc-Ta)l.l=1.641-0.178VPD and upper baseline equation was equal h=2.52 0c and for winter maize Lower baseline equation was equal: (Tc-Ta)l.l=2.161-0.221VPD and upper baseline equation was equal h=3.69 0c. CWSI, which is based for irrigation scheduling, was calculated 0.23 for Summer Maize and 0.17 for winter maize. By increasing water salinity from s0 to s4, the temperature difference between Canopy and air was increased 3.40c for summer maize and 20c for winter Maize. In this research CWSI was calculated In the before irrigation days at the both of Seasons and result showed that CWSI increased about three times at the both of Seasons when water salinity increased from s0 to s4. Comparing the results of the two Seasons showed that CWSI index is affected by irrigation water Salinity and can be used as an Indicator to Irrigation scheduling. Comparing between the CWSI at the days before Irrigation and the CWSI at the days after Irrigation showed the best Condition in field is field capacity. Because at this method, the moisture of the soil is around field capacity. The yield under salinity stress and CWSI was highly correlated. So this indicator can be used to estimate yield under salinity stress. AquaCrop model could simulate accurately Yield and Biomass under different Salinity Stress. The equations of the stress coefficients were obtained for both of the varieties According to the observed data in the field. Climate change is anticipated to cause negative and adverse impacts on agricultural systems throughout the world. Higher temperatures are expected to lead to a host of problems. On the other hand, increasing of [CO2] anticipated causing positive impacts on crop yield. The result of these two factors in addition to other factors such as water quality, determine the yield potential under climate change conditions.
So one of the main aims of this study was to simulate the effects of Saline Water Irrigation Effects on Maize (SC704 & Mobin Variety) yield Using AquaCrop model. In this study, to produce scenarios of climate change in the two future periods (2050-2020 and 2100-2070), the CSIRO-MK3.5 model among AOGCM models is selected and Three emission scenarios A2 and B1 and A1B were used. Using the measured precipitation for the 30 years baseline period (1981-2010) and LARS-WG model, daily precipitation time series generated for future periods (2020-2050 and 2070-2100). Mentioned process in the above was done for temperature. Afterward Maize growth was simulated in future periods and as well as baseline period using AquaCrop model. Result showed in the first future period (2020-2050) Summer Maize increased slightly (Maximum around 4 percent) relative to the base line Scenario (1980-2010) in all Salinity Treatments as well as yield under A1B and B1 Scenarios decreased relative to the base line Scenario. In the first future period, Summer Maize reduction per unit of Irrigation’s Water Salinity was 33.6 percent under A2 scenario, 25.8 percent under B1 scenario and 12.2 percent under A1B scenario. In spring season, changes in the maize yield under all emission scenarios are very small. In the second future period (2070-2100), the maize yield is more different than the first period. In the second future period (2070-2100), The possibility of planting Summer Maize (planting date: 23 July), under any of the Climate Change Scenarios is not possible. For Spring Season, the situation is different. In 2070-2100 period the yields of all salinity treatments, under B1 Scenario are more than yields under A2 scenario. For this period A1B is the best Scenario and A2 is the worst Scenario. In the Summer Season shifting in the planting date is assessed in order to adaptation strategies. Result indicated that Aug, 12 are the best planting dates for 2020-2050 and 2070-2100, respectively. In the first future period (2020-2050), the best Scenario was (S0A2P3N1) and the worst Scenario was (S4B1P1N1). In the Second future period(2070-2100), the best Scenario were (S0B1P3N1 & S0(A1B)P3N1) and the worst Scenario was (S4A2P1N1).
-
شبیه سازی تبخیر و تعرق و رطوبت خاک برای ارزیابی خشکسالی کشاورزی برای دوره های پایه و آتی به کمک تکنیک سنجش از دور
مصطفی یعقوب زاده 1394By increase population, agriculture, and industry, the demand for water has increased gradually across the world. Currently, agricultural crops have been damaged by drought severity due to climate changes that contribute to water scarcity. Drought is often caused by a lack of precipitation from the normal amount, and agriculture is often the first sector that had been affected by the onset of drought due to its dependence on water resources and soil moisture reserves during various stages of crop’s growth. Since the investigation of agricultural drought is not possible without investigation of the changes in evapotranspiration and soil moisture. So in this study, simulation evapotranspiration and soil moisture of rain-fed and irrigated fields of Neyshabour plain were evaluated for agricultural drought evaluation in the base line and future by using SWAP model and Surface Energy Balance Algorithm for Land (SEBAL) algorithm. Firstly, SWAP model was calibrated and Verified for rain-fed and irrigated fields by moisture’s measured data in the duration of product season 2008-2009 and 2013-2014. For evaluation of SEBAL algorithm, calibrated SWAP model was used in years with measured data. Correlation coefficient (R2) of 0.67 to 0.91 between SEBAL algorithm with SWAP model and computational methods showed that SEBAL algorithm has a high potential for estimation of evapotranspiration. The dtermination of actual evapo transpiration was done with SEBAL algorithm and MODIS images between 2000 to 2014 years. Correlation of SWAP model with SEBAL algorithms in years without moisture measured data with RMSE index equal 1.47, 0.75 and 1.41 for 135, 190 and 228 Julian day verified the accuracy moisture and evapotranspiration obtained from SWAP model. The results derived from comparison of evapotranspiration and NDVI vegetation index indicated a good correlation between vegetation and evapotranspiration (R2=0.908). In the next stage, moisture and evapotranspiration was simulated by SWAP model for base line (1992-2011) in rain-fed and irrigated fields. The drought indices of Soil Moisture Deficit Index (SMDI) and Evapotranspiration Deficit Index (ETDI) were developed for base line by use of weekly soil moisture deficit and evapotranspiration deficit, respectively. The observation data and LARS_WG model had downscaled temperature, precipitation and radiation parameters and factor change method had downscaled relative humidity and wind in order to generate the daily scenarios of future meteorological parameters. The daily scenarios of future meteorological was produced in irrigated field by HADCM3, ECHOAM and CGCM3T47 models and A2, B1 and A1B emissions scenarios and in the rain-fed wheat field was generated by HADCM3 model and A2 and B1 emissions scenarios. In the future than base line, annual temperature and relative humidity will increase and decrease respectively. Annual precipitation in the duration of 2020-2039 and 2080-2099 than base line will increase and decrease respectively. soil moisture and evapotranspiration for future line were simulated by use of daily scenario of meteorological climate change and also crop and irrigation data’s of base line using SWAP model. In selected irrigated fields of Neyshabour plain, The SMDI and ETDI index were estimated by 30 and 60cm depth of soil moisture and actual and potential evapotranspiration for future line, respectively. In the rain-fed fields of wheat SMDI index in the 30 cm moisture depth was determined by soil moisture of 30cm depth, and were compared with ETDI and SPI indices. Moisture in the 30 and 60cm depths of Faroub and Soleimani wheat and Barley than base line will increase and in maize field will decrease. In future than base line, Evapotranspiration of whole irrigated fields will increase. Average SMDI index in 30 and 60cm depth of maize, Soleimani wheat and barley field showed the exist of water stress for base and future line. Also, Average SMDI index estimate drought in Monitoring base and future line for wheat and barley fields. Variations of SMDI index in 30 and 60cm depth for Soleimani wheat and ETDI index for maize field in the season weeks after growth were indicated drought stress from lack of moisture and plant water requirement. A1B and A2 Emissions scenarios predicate negative amount of SMDI index and lack of soil moisture in the decade 2090(2080-2099) than base line and the decade 2030(2020-2039). Average soil moisture of 30 cm depth and evapotranspiration of rain-fed wheat field will increase slightly in the future than base line. SMDI index in 30 cm depth and SPI predicate relatively severe drought in rain-fed wheat fields. SMDI index and ETDI index will be placed under Zero in the whole weeks and more weeks after growth of rain-fed wheat, respectively. The comparison of SMDI-30 (SMDI in 30cm depth) and ETDI with SPI index showed agreement (R2) equal of 0.59 to 0.86 for agriculture drought index SMDI with meteorological drought index SPI. The result of studies estimate drought stress in more of week after growth for irrigated fields and relatively severe drought for rain-fed fields. Also, determined weeks in the grow season in future line of 2030 and 2090 that damage plant of water stress that with irrigation water management can prevent damages caused by the decrease in crop yield.
-
بررسی میدانی اثر تالاب ساختگی با جریان سطحی در حذف آلودگی از فاضلاب صنایع جانبی نیشکر با استفاده از گیاه وتیور(مطالعه موردی:شرکت کشت و صنعت کارون)
صائب خوش نواز كومله 1394Abstract
In order to investigate filtration efficiency of the surface flow constructed wetlands, nine basins were built as a pilot study in Karun Agro-industy unit and continuous sugarcane Agro-industrial wastewater were flown into them. Vetiver plants were planted in three basin units using “roots in the soil” method (emergent), and in three other basins using floating method and three other basins were considered without any plants (control). Parameters pH, TDS, BOD5, NO3-N and PO4-P were determined for the entering sewage and exiting wastewater, and effects of influencing factors that change or decrease these parameters including system type, sewage retention time in the system and test period (temperature) were examined. In order to compare the mean values, SAS software was utilized using Duncan method at confidence level of 95%. pH value of the entering sewage and exiting wastewater varied between 6.93-7.41 and 6.98-7.34, respectively. In most of the cases, pH of the exiting wastewater was more than that of the entering sewage and was more close to the actual value. Difference between wetland systems in terms of system type and retention time was significant; while this difference was not significant for the test period (temperature). Average of maximum pH value of the exiting wastewater was 7.19 for retention time of 7 days, while this value was 7.22 for the control system. TDS value of the sewage entering the systems and wastewater exiting the systems varied between 1332-2285 mg/l and 1138.11-2388.77 mg/l, respectively. Comparison of the average effect of system type on percent of TDS removal showed that there was no significant difference among systems which contained plants and the significant difference was observed between systems with plants and the control system. Maximum of average TDS removal efficiency was obtained as 16.71% in the system with plant’s root in the soil (emergent). Comparison of average effect of retention time on TDS removal in the exiting wastewater indicated that there was a significant difference among retention times and maximum of average percent of TDS removal was obtained as 14.325% for retention time of 7 days. Comparing average effect of test period on TDS removal percentage showed that there was not a significant difference among different months at confidence interval of 95%. BOD5 values of the entering sewage and the exiting wastewater varied between 81-135 and 38.33-104.33 mg/l, respectively. Results of comparing average effects of system type on BOD5 removal percentage showed that there was a significant difference between emergent and control systems, and maximum of average BOD5 removal percentage was obtained 51.043% for suspension system. Comparison of average effect of retention time and test period on BOD5 removal percentage showed that there was a significant difference between retention time and test period and the maximum of average BOD5 removal percentage was obtained as 39.857% for retention time of 7 days. Minimum and maximum level of nitrate content in the entering sewage was respectively 14.65 and 27.14 mg/l and minimum and maximum level of nitrate in the exiting wastewater was respectively 6.45 and 32.75 mg/l. Comparing average effect of system type, retention time and test period on nitrate removal percentage showed that there was a significant difference between systems, retention times, and test periods at confidence interval of 95% and maximum of average nitrate removal efficiency was obtained as 43.09% for the emergent system and 34.73% for retention time of 7 days. Phosphate concentration in the sewage entering the basins and wastewater exiting the basins varied 8.58-5.99 and 4.56-7.64 mg/l, respectively. Comparing average effect of system type, retention time and test periods on phosphate removal percentage showed that there was a significant difference between three system types, three retention times and test periods and maximum of average phosphate removal efficiency was 20.864% for emergent system, 16.895% for retention time of 7 days and 17.936% at the end of May (test period number 6). Results indicated that systems with plants had lower efficiency in increasing the pH level of the exiting wastewater due to higher CO2 production, compared to the control system and use of this system is not recommended for increasing pH of the acidic waters. On the other hand, systems devoid of plants had lower positive effect on decreasing TDS level due to evaporation from water free surface and high concentration of dissolved particles. On the contrary, systems with plants increased the removal efficiency due to establishment of shading surface which prevents evaporation and increased dissolved salts concentration, and on other hand accumulation of salts in the plants. Systems with floating plants showed higher BOD5 removal efficiency, compared to the emergent systems with similar environmental conditions, therefore if the first priority is the decreased amount of BOD5, systems with floating plants has superiority over systems with emergent. Also, results showed that emergent systems had higher efficiency in nitrate and phosphate removal compared to the floating system with increase in the retention time improving their efficiency. Thus, it can be concluded that, if removal of nitrate and phosphate from the sewage is important, emergent systems has higher priority over floating systems; although, floating and hydroponic wetland systems have acceptable efficiency in nitrate and phosphate removal with easy dislocation of aqueous plants and greater adaptability of plants with variations in water level being among other advantages of these systems. Finally, since Khuzestan Province receives sufficient sun light and temperature, growing Vetiver plants is easy and comparison of phytoremediation method with other costly and expensive removal (treatment) methods, this technology is particularly applicable and cost effective for small urban, rural, agricultural and industrial societies. Since using the conventional sewage treatment systems is costly especially for agricultural and industrial units, application of constructed wetlands is a suitable approach for treatment of different types of industrial sewages, provided enough land is available.
-
تخصیص بهینه منابع آب سطحی و زیرزمینی به الگوی کشت دشت باغملک با الگوریتم برنامه ریزی چندهدفه مبتنی بر رتبه بندی نامغلوب
رضا لاله زاری 1394Water resource management is a main driver to increase economic productivity for an agricultural area. Under water shortage condition, efficient use of available water is necessary to sustainability product the requirement yields in arid and semi-arid area. Therefore, a combination procedure of mathematical modeling and optimization techniques has been developed for water allocation to maximize the economical productivity and total efficiency of an irrigation scheme. Optimization model is presented using multiobjective genetic algorithm and evaluate by two objective functions. Water use efficiency, cropping pattern, reduction of irrigation losses, effective use of rainfall and cultivated area are considered in the objective functions of the model. Irrigation water requirement for each growing stage and cultivated area have been considered as decision making variables. For field study, the main crops of Baghmalek plain and their related area, the cost of agricultural inputs and final price of crops were collected in farming year 2013-2014. Also, conceptual model of Baghmalek aquifer on the framework of finite difference numerical approach have been used in simulating groundwater flow treatment. Water table data of 8 piezometers was collected for 9 years duration from 2002 to 2011. Study years divided into 36 seasonal stress periods and hydraulic conductivity, specific yield and recharge were calibrated in these periods. The results confirm the flow model has the tolerable simulation accuracy by variance of 3.05 and 3.92 in calibration and verification processes, respectively. The results show that the optimal cultivation area allocated among various crops is decreased for maize, melon, tomato and onion in drought condition. Tomato, bean and onion have obtained more volume of total available water, respectively. Tomato in relative yield, vegetable in the percentage of allocated water and bean in effective use of water and benefit per cost ratio have the minimum values of evaluation parameters. The optimal irrigation strategies corresponding to the different deficit allocation levels and different B/C values are estimated using the proposed stochastic model. The results was suggested the full irrigation for tomato and melon and different levels of deficit irrigation for wheat (45%), maize and vegetable (40%), onion and bean (30%). Reducing water stress of the tomato and melon yields will significantly increase Net Benefit per Drop index (NBPD) and also the second objective function to achieve the optimal irrigation scheduling. The planting areas for the spring crops in the optimum state are 1126 ha for maize, 158 ha for melon, 27 ha for tomato, 453 ha for onion, 26 ha for vegetable and 16 ha for bean. In the developed multiobjective scheduling, there is the set of solution in Pareto front with the great potential to maximize the net income of cropping pattern in the water shortages problem. It has also been shown that water price plays an important role on the water allocation management. Therefore, the optimum strategies of cropping pattern could be designed when water price analyses are considered in a predetermined economic framework. For determining the optimal cropping pattern, considering effective rainfall should be taken into consideration especially in rainfed cultivation to assessment of complementary irrigation. Also, due to complementary irrigation of wheat and barley, it is essential to find the best periods to increase water use efficiency for achieving the high-yield production. These periods of 22 and 23 for barley and the periods of 23 and 24 for wheat were obtained to irrigate the rainfed fields. Furthermore, the result of evaluation indexes indicated that by increasing the price of water, the model decreased the allocated water in maize and vegetables and increased the water use efficiency and benefit per cost ratio in bean and tomato.
-
بررسی تأثیر مدیریت آبیاری بارانی با آب شور بر شاخص های عملکرد و جذب یونها برای ذرت در اقلیم اهواز
سهراب مینایی 1393Salt water quality challenges facing the development of sprinkler irrigation systems, especially in hot and dry conditions. The effects of changes in irrigation management and water salinity on yield and Ions absorption for corn in Ahwaz weather conditions were investigated. First, sprinkler irrigation system was constructed with double parallel sprinkler line. The best pressure and sprinkler angle circulation for uniform distribution of water sprinklers and uniform salinity gradient was determined for this system. Irrigation management strategies and salinity were main factors and subplots, respectively. In this research investigated the effects of four irrigation management options; "daytime sprinkler irrigation system (D)", "nighttime sprinkler irrigation system (N)", "daytime sprinkler irrigation system with a post short fresh water for foliage washing (F)" and "Surface irrigation(S)" for five levels of saline water (S1 to S5) with Karoun river water (S1), on yield, some of yield components and irrigation water productivity of maize, soil salinity and Ions absorption too. Salinity levels were between 2.5 and 5 (ds.m-1). The results showed that the effects of irrigation management and their interaction with salinity on plant high, water productivity and harvest index were significant at level of 1 and 5 percent in spring cultivations. The effects of irrigation management on all plant traits and water productivity were significant at level of 1 and 5 percent in summer cultivations, but irrigation management with their interaction with salinity were non-significant. (S) and (F) irrigation managements were better than (D) for almost of plant traits and water productivity index in both season cultivations. The results showed that soil salinity profiles in sprinkler irrigation managements, especially in (D), were increased than Surface irrigation Management(S) especially for daytime sprinkler irrigation management (D). Although Plant sodium(Na+) and potassium(K+) Ions absorption was increased with increase in saline water and time duration after planting, but K+/ Na+ decrease with increasing in saline water and soil salinity too. The Ions analyze variance result's showed that the effects of irrigation management and their interaction with salinity on almost of Ions absorption and K+/ Na+ were significant at level of 1 and 5 percent in spring and summer cultivations. Leaf area index (LAI) was decrease with increase in saline water and soil salinity clearly. The result showed that LAI in S and F irrigation management are more than the other irrigation management for the same salinity level.
-
بررسی اثر مدیریتهای مختلف آبیاری قطرهای با آب شور بر عملکرد ذرت و توزیع نمک در منطقه ریشه
علی حیدر نصرالهی 1393
The shortage of water resources with high quality is becoming an important issue in the arid and semi-arid regions. For this reason the availability of marginal quality water resources such as drainage water, saline water and treated wastewater has become important consideration. Irrigation methods with high efficiency such as drip irrigation are suitable solutions for the optimal use of these resources. This study was carried out to investigation the effects of drip irrigation management strategies with saline water on maize yield and irrigation water productivity at spring and summer cultivations. The experiment was performed at split plots based on randomized complete block design. In this research investigated the effects of three irrigation management options; mixing (M1), one-alternate (M2) and half-alternate (M3) of three levels of saline water (S2, S3 and S4) with Karoun river water (S1), on yield, some of yield components and irrigation water productivity of maize and soil salinity too. Irrigation management strategies and salinity were main factor and subplots, respectively. Salinity levels of S2, S3, and S4 were 4, 5 and 6 dS/m for spring season and 4, 6 and 8 dS/m for summer season. Results showed that the effects of management and salinity and too, their interaction on yield and water productivity were significant at level of 1 and 5 percent in spring and summer cultivations, respectively. Strategy of half-alternate (M3) improved yield indexes, water productivity and leaching of soil surface layers in both seasons. The Model coefficients of yield- salinity was calculated under different managements of drip irrigation. The yield reduction per unit increase in soil salinity of plant root zone to mixing, one-alternate and half-alternate management strategies calculated respectively, 8, 10.5 and 5 percent for spring cultivation and 9.86, 12.3 and 7.14 percent for summer cultivation. In order to assess the ability of the SALTMED model to simulation performance , biomass and distribution of salinity and soil moisture under different managements, the model was calibrated and validated. The results showed that the SALTMED model simulates various parameters with high accuracy, unless to salinity distribution in the alternative strategies that has lower accuracy.
-
بررسی و ارائه روشهای نوین راندمان های آبیاری جویچهای با توجه به تغییرات مکانی و زمانی خصوصیات نفوذپذیری خاک برای گیاه نیشکر
عادل باوی 1392 -
بررسی تاثیر شرایط جت مستغرق در رقیق سازی و دفع پساب و زهاب در منابع پذیرنده با استفاده از مدل فیزیکی
فریبرز محمدی 1391 -
بررسی تأثیر تغییر اقلیم بر محصول گندم و ارائه راهکارهای سازگاری با آن با در نظر گرفتن عدم قطعیت های مدل های AOGCM و سناریوهای انتشار گازهای گلخانه ای (مطالعه موردی: جنوب خوزستان).
مهدی دلقندی 1391 -
تثبیت و انتقال کادمیم در حضور نانوذرات آهن در آب و خاک آلوده
مهدی بهرامی 1391 -
بررسی تأثیر کم آبیاری و خشکی موضعی ریشه بر اجزاء عملکرد و کارایی مصرف آب گیاه ذرت
عباس رضایی 1391 -
بهینه سازی میزان آب مصرفی در کشت های غالب (گندم- جو- کلزا- ذرت) با استفاده از مدل های شبیه سازی رشد گیاهی (WOFOST, CGMS) در منطقه ماهیدشت- کوزران استان کرمانشاه
علی جان بافكار 1391
Master Theses
-
بررسی اثر كاربرد مالچ آلی بر عملكرد و بهره وری آب گیاه ذرت علوفه ای تحت تنش آبی با استفاده از سیستم آبیاری قطره ای نواری در خرم آباد
سیدحسین موسوی 1402 -
بهره وری آب و ارزیابی خصوصیات کمی ذرت تحت تاثیر مدیریت ها و مقادیر مختلف آبیاری
فاطمه بختیاری 1400 -
مقایسه روش آبیاری شیاری ، قطره ای نواری (تیپ) و آبیاری بطری- فتیله ای و آبیاری زیرسطحی بر عملکرد و اجزای عملکرد گیاه اسفناج
رضا ولی پور 1400 -
ارزیابی پارامترهای موثر در میزان استحصال آب در گلخانه به روش آبیاری تقطیری
زینب حمید 1399 -
بررسی اثرتوأمان کاربردسطوح مختلف سوپرجاذب وشوری آب آبیاری برخصوصیات فیزیکی خاک
زینب كرامتی زاده 1396By population growth and promotion of qualitative level of life in the recent years, the agriculture section of the country has faced a major challenge to provide food for people and reach self-sufficiency. The increase in the efficiency of water consumption in this section leads to a stable exploitation of water resources in the world. Likewise, correct management and deployment of advanced technology through humidity preserving and saving and increasing the water holding capacity might be helpful for increasing the returns of agricultural water consumption. One of the approaches of optimizing water resources and preserving them is to use superabsorbent polymers. One of other approaches to confront water shortage crisis is chain application of water which is appropriate to its quality change in different sections of consumption. To understand the impact of superabsorbent polymers and irrigation with salty water on the physical features of soil, a research is conducted. This study took place in farm conditions by factorial statistical design in the form of totally random blocks in 3 levels of superabsorbent polymer A200 (0, 0.1, 0.2 weight present) and 3 levels of the irrigation water salinity (2.7, 4, 6 Deci Siemens/meters). This study was performed in 27 similar terraces with 1×1 dimension in number one research farm of the faculty of water science engineering in Shahid Chamran University. It was repeated 3 times and during 3 months of irrigation with a 10 day irrigation period and the irrigation depth of 5 centimeters. The texture of the soil of the project site was sandy-clay loam. In order to specify the physical features of soil including apparent mass density, total porosity, field capacity moisture, permanent wilting point moisture, effective soil porosity in 0-30 cm depth and the final infiltration rate in the surface of soil were measured before irrigation and after each month of irrigation.
According to the ananlysis, the difference of mentioned parameters in diverse levels of the superabsorbent was significant in P-value of 5 percent. Adding superabsorbent to treatments with 0.1 and 0.2 weight percent, under the treatment of the Karoon water than the control sample increased the field capacity moisture by 9.18, 13.96 percent; the permanent wilting point moisture by 2.48, 6.77 percent; the final infiltration rate by 1.86, 2.16 percent and the total porosity by 4.18, 5.03 percent, respectively. But adding superabsorbent caused 3.37 and 4.05 percent decrease in the apparent mass density in the respective treatments. The effect of irrigation with salty water on parameters such as field capacity moisture, bulk density and total porosity was not significant. But it had significant effect on the other parameters. Irrigation with salty water in 4 and 6 Deci ziemens per meter treatments than the control sample increased the field capacity moisture by 1.56 and 4.07 percent; permanent wilting point moisture by 1.78 and 5.33 percent; apparent mass density by 0.23 and 0.58 percent but caused 5.89 and 7.48 percent decrease in final infiltration; 0.36 and 3.5 percent decrease in total porosity and 3.85 and 9.52 percent decrease in effective porosity, respectively. The effect of the superabsorbent surfaces on the effective porosity in comparison with the control sample casused 2.38 percent increase in the first treatment and 1.78 percent decrease in the second treatment. The interaction of different levels of superabsorbent and the salinity of irrigation water was not significant for all the parameters
-
تعیین رطوبت خاک به روش مثلثی در فصل برداشت نیشکر با استفاده از تصاویر ماهواره ای (مطالعه موردی اراضی نیشکر کشت و صنعت سلمان فارسی)
یوسف پوررضا 1396Important factors that are effective in the growth and quality of plants, especially cane sugar, is the soil moisture parameter, which, if this factor is present during the growth period, the plant will have the highest yield and also the most important factors that reduce the product is Soil moisture, which, if not sufficiently covered by the root zone of the plant, causes tensions resulting in lower productivity and performance. During the growing and harvesting period, the moisture content of the cane sugar must be evaluated. Therefore, studying and controlling factors determining the condition of cane sugar (plant cover temperature, plant moisture, soil moisture) in irrigated land are essential for proper irrigation planning and determination of the time and amount of water consumption. Also, knowing the moisture status of the soil can help us in planning and managing agriculture during the period when the plant is harvested and re-enters the growing and germination phase. But due to the vast amount of sugarcane cultivated land and plenty of farms, monitoring of each of the above factors is time consuming and economically costly. Therefore, the use of remote sensing technology and geographic information system with regard to high speed and low costs in recent years has been considered as an appropriate option for monitoring agricultural land.
In this regard, in order to conduct field information research including vegetation temperature, soil moisture content and soil moisture from Farms of Salman Farsi during the harvest season, at minimum water requirement of the plant, from November 2016 to April 2017, simultaneously with passage Landsat 8 satellite has been harvested on the field of study (Salman Farsi cultivation and industry) every time in 9 fields and at 3 points from the points known as crop logs. After performing the necessary pre-processing on satellite images in ERDAS 2014 software, it first uses thermal bands and a split window algorithm that has the highest correlation values per pass with the vegetation temperature measured using infrared thermometer NDVI and LST indices of satellite images were extracted. In the next step, using the triangular method algorithm and extracted indices and also the ENVI5.3 software, soil moisture indices including SWI, WDI and TVDI were extracted. By obtaining the correlation between the indices and the measured moisture content in the fields, With the help of SPSS software, the TVDI index had the highest correlation with the ground data, with correlation values between 0.49 and 0.68 for soil moisture at 0-30 cm depth and 0.47 to 0.64 for soil moisture at a depth of 30 to 60 cm.
In the final stage and in order to further investigate the soil moisture parameter in two depths of 30 and 60 cm, it was shown that the indices in the two depths did not show significant differences in terms of soil moisture status and hence Only by measuring soil moisture at a depth of 30 cm, the results could be extended to a depth of 30 to 60 cm. In order to extract soil moisture maps, the TVDI index was the index that showed the highest correlation with the thermal and thermal regions separately with soil moisture data. Using this index, the soil moisture zonation map was extracted in the 7 satellite passages, which showed a difference between the measured moisture and the moisture from the zoning map between 12% and 26%.
-
مقایسه روش های مختلف مدیریتی آبیاری بر بهره وری آب مصرفی گوجه فرنگی در شرایط گلخانه ای
محمد هوشمند 1396Water shortage is one of the most important restricting factors in crop production in the world. Different methods of deficit irrigation are right solution for saving irrigation water. To investigate the effects of regulated deficit irrigation (RDI) and partial root zone drying (PRD) on yield, yield components and water productivity of greenhouse tomato plants under hydroponic culture conditions, a research was carried out at the greenhouse complex of faculty of agriculture on Shahid chamran university of Ahvaz was implemented in 2016. The treatments of experiment consisted of control treatment and two treatments of regulated deficit irrigation (RDI) and partial root zone drying (PRD), and two irrigation levels of 85% and 70% of the water requirement of the plant were carried out in a completely randomized design with four replications. The results of data analysis showed that different methods and levels of dificit irrigation on root volume, fresh and dry weight of root, root water content, root length and width, fresh and dry weight of stem, stem water content, plant dry weight, fruit number, fruit weight, fruit height and water productivity of the product and water productivity of the air sector it has a significant effect, but on fresh and dry weight of leaf, leaf water content, leaf area, leaf area index, specific leaf area, leaf area ratio, leaf number, plant height, biomass weight, fruit diameter and harvest index did not have a significant effect. Among all of treatments, the highest fruit weight and water productivity in PRD85 treatment was 2572.5 g and 16.07 kg / m3, respectively, which showed an increase of 3.5% and 22% respectively compared to the control treatment. The lowest fruit weight and water productivity in PRD70 treatments were 1189.5 g and 9.29 kg / m3, respectively, which decreased by 52% and 32%, respectively. According to the results, application of irrigation to 85% of plant water requirement and Partial root zone drying (PRD) method have the best results for greenhouse tomato cultivation in hydroponic conditions.
-
ارزیابی فنی سیستم های آبیاری تحت فشار (سیستم کلاسیک ثابت-آبپاش متحرک)در شهرستان اقلید، فارس
سمانه كاظمی 1395Shortage of water resources due to the recent drought as well as farmers trend towards mechanization of agricultural operations and irrigation operations has caused that increase trend towards pressurized irrigation systems. Accuracy in design and management of these systems is an important factor in the development and improvement of the system. So the aim of this study was to evaluate the design, implementation and operation of sprinkler irrigation systems implemented in the city of Eghlid in Fars province, Iran. For this purpose, eight fixed classic irrigation system with portable sprinklers, were selected from between systems that at least a crop season were elapsed from the exploit of them and evaluated. In the evaluating of these systems, indexes Christensen Uniformity coefficient (CU), Uniformity Distribution (DU), Potential Application Efficiency of Low Quarter (PELQ), Actual efficiency of Low Quarter parameters (AELQ), were used. In order to better analysis, the water dispersion patterns and irrigation adequacy curve was plotted. The mean value of these indexes CU, DU, PELQ and AELQ for eight systems, obtained 73.36, 61.82, 54.51 and 52.31 percent respectively. Wind and evaporation losses and deep percolation losses in these systems were 12.84 and 5.32 percent respectively. Due to low irrigation, except in a case, in the other systems potential application efficiency were equal to the actual application efficiency and lower the actual efficiency of the efficiency potential indicates that irrigation have been used more than required. The mean value of application efficiency and combined efficiency losses in these systems were 50 and 82.1 percent respectively. Unsuitable designing and operation of the studied systems were recognized the reason of low potential application efficiency. According to the results, it can be concluded by the reducing the spaces of sprinklers, pressure regulation, not using a lot of sprinklers at the same and proper maintenance of the systems, the distribution uniformity is increased.
-
بررسی تاثیر شوری آب آبیاری بر کارایی نرم افزار Saltmed در شبیه سازی توزیع شوری و رطوبت خاک منطقه توسعه ریشه گیاه ذرت
نگار خالوندی 1394Considering the dry climate of the country and recent droughts, the importance of water as a vital input comes to for more than ever. Existing water resources in this areas are limited and holds mostly saline and brackish water; therefore, apart form soil moisture, salinity also affects the plant water aborption in these areas. With the help of models we are able to arrange irrigation and predict soil moisture and its salinity process. In this study, the applicability of SALTMED model in simulating corn crop root zone soil moisture and salinity is examined. In order to examine different levels of salinity, a test project in the form of absolute random block with the frequency of three occurances was carried out in research farms located in Shahid Chamran University of Ahwaz, Faculty of Water Sciences Engineering during the years 2013-14, in which salinity levels 2, 3.5, 4.5, 5.5 and 6.5 (dS/m) were designated as S0, S1, S2, S3, S4. Eleven samples of soil moisture and six samples of soil salinity were taken. After Providing required parameters for the model, sensitivity of water and salt transportation sections in relation to input paramaters was measured. Results obtained by SALTMED model sensitivity analysis showed that the model output has low sensitivity to wind speed parameter, high sensitivity to irrigation water salinity and irrigation water amount, and medium sensitiviy to other parameters. 70% of measured salinity and moisture in S0 treatment was used for calibration and the remaining 30% was used for verification of the model. R2 and NRMSE statistic parameters calculated for soil moisture calibration stage were 0.82 and 6.33 respectively and for verification stage 0.88 and 8.32 resepectively, which indicates high accuracy of the model in simulating soil moisture. Moreover, R2 and NRMSE values of soil salinity in calibration stage were 0.76 and 9.87 respectively and 0.96 and 9.14 respectively in verification stage, which indicates high accuracy of the model in simulating soil salinity. Moisture and salinity were simulated for other treatments. NRMSE statistic value calculated for S1, S2, S3, S4 treatments’ moisture were 9.89, 21.99, 10.11 and 9.87 respectively and for salinity were 19.38, 19.24, 18.07 and 16.51 respectively. According to these results, by increasing irrigation water salinity, model accuracy in simulating moisture and salinity was increased and the model could well predict soil moisture and salinity, and it can be used for irrigation with saline water management.
-
شبیه سازی توزیع رطوبت و شوری در خاک تحت کشت ذرت با استفاده از مدل SWAP در شرایط اقلیمی اهواز
شیوا بیرگانی 1394Abstract: Due to Increasing demand for water resources in the world, especially in arid and semi-arid, farmers had to use of low quality waters such as saline drainage water and groundwater. Therefore, the consideration to results from the use of this type of water on plant, soil and the environment is essential for sustainable agriculture. In order to investigate the pattern of soil moisture and salinity of the soil under cultivation in surface Irrigation system under different levels of salinity irrigation water and simulated by SWAP model, a research was performed in the research field of Water Sciences Engineering Faculty, Shahid Chamran University of Ahvaz. For this purpose, maize - mobin variety - was cultivated under surface irrigation system in winter 2014. The experiment was arranged according to a randomized complete block design with split plot layout. Field experiment consists of five levels of salinity irrigation water (S0: Control treatment, S1, S2 , S3 and S4 dS m-1) with three replications. The amount of irrigation water determined Based on soil moisture deficit to field capacity. Salinity treatments were performed after the three-leaf plants. Sampling of soil was performed during the growing season and at three depths 0-30, 30-60 and 60-90 cm for determination of Soil moisture and salinity. Evaluation of soil moisture indicated the increase in salinity of irrigation water from S0 to S4, volumetric soil moisture increased 5 % and range of soil moisture 30-60 cm.The water by coefficient of sensitivity 0.55. Results of soil moisture distribution simulation showed that R2 between 0.77 to 0.88 and in the higher salinity there is less agreement between measured and results of the sensitivity analysis, calibration and verification SWAP model showed that output of model is the most sensitive to maximum temperature with coefficient of sensitivity 0.61 and the irrigation simulated soil moisture which is reflect the reduction of model accuracy for prediction of soil moisture after applied salt treatment. Salinity distribution simulation results showed that the model simulated soil Salinity less than measured values. Also showed that with increasing salinity of irrigation water, accuracy of model increased. NRMSE values for soil moisture obtained less than 10% and 20%-30% for Salinity, that present model is useful for simulation. Overall, results showed that swap model is suitable for simulation of soil moisture and salinity distribution under condition of saline water using changing in the upper soil layer is greater than the depth. Also, soil salinity in all treatments increased with increasing the salinity of irrigation water. The highest concentration of salt observed at a depth of.
-
بررسی تاثیر مدیریت آبیاری با آب های شور- سدیمی و شیرین به صورت تلفیقی بر خصوصیات فیزیکی و شیمیایی خاک
احسان صالحی 1394If you want the water crisis, tension on agriculture, food security and social welfare should not use unconventional waters (especially saltwater and Brackish resources) in agriculture is on the agenda. Water shortage in irrigation water management practices is one of the Shur-sodium is a mixture of fresh water. In order to investigate the effect of sodium Saline-water ratios on some soil properties such as porosity and sweet, the average penetration rate, electrical conductivity, pH and sodium adsorption ratio test in a completely randomized design with three replications in Research Station Number One Water Science Engineering Department University of Chamran was a martyr. Silty loam soil texture and duration of the experiment was three months from mid-April of 1393 began and irrigation was performed 20 times. Treatments consisted of control (C): treatment that was entirely with fresh water irrigation, saline treatment, one third, two thirds of the sweet (M1), the treatment of water per irrigation with saline water and one-third of the remaining two-thirds, immediately After the intrusion of salt water, fresh water was completed, the second treatment, a passion, a sweet second (M2), treatment with two-thirds of salty, sweet one-third (M3), mixed treatment: In this treatment, the water is salty and sweet, with a ratio mixed together and then were used (M4), respectively. The results showed significant differences between treatments were not different in terms of soil acidity. M1, and M2 treatments in terms of electrical conductivity after control (C) had the highest electrical conductivity and sodium adsorption ratio closest result to the control (C) of the M1, respectively. M4 after treatment as well as treatment control (C) had the highest penetration rate and the average porosity difference between treatments was observed.
-
بررسی بهرهوری آب در شبکههای آبیاری و زهکشی استان خوزستان برای محصولات گندم، جو، یونجه و ذرت
مهتدی-محمد 1394The study, to obtain indicators of water productivity of wheat, barley, corn and alfalfa in some irrigation and drainage networks in Khuzestan province was conducted. Networks studied in this research, evan, dez, maroon, Shavoor, Karkhe, gotvand, Shadegan, Ramshir and fajr and jayzan. The productivity map networks, software, Arc Gis was drawn. Finally, the impact of productivity precipitation, the productivity index was studied. The purpose of obtaining water productivity indicator, providing a suitable cropping patterns and productivity of water use in the studied networks. The two main factors in the study of water productivity, performance products and water consumption. Data related to performance products, agricultural province were collected. Irrigation products were the khuzestan province of Water and Power. In some networks due to high irrigation water use productivity have declined. The results showed that the highest water productivity of wheat to the network, evan, productive gotvand down and shadegan 1/03, 0/98 and 0/86 kilograms per cubic meter, respectively. The barley crop, gotvand, Shadegan and Karkhe to the 0/84, 0/73 and 0/72 kilograms per cubic meter with the highest productivity. In corn, the productivity of networks Shavoor, Karkhe and maroon, respectively0/89, 0/74 and 0/72 are dedicated kilograms per cubic meter. Finally in alfalfa, networks and Ramshir with average productivity of 1/47 and 1/22 Karkhe kilograms per cubic meter had its best productivity . Interestingly, in this study, a correlation between low water productivity in irrigation and drainage network is dose. Despite the good performance in the network due to excessive consumption of water in the network, reduced water productivity and water management network in a good position in the network. Unlike doses network, the network is Shadegan. In this network, despite a correlation between low performance products , due to low water use irrigation, productivity is good for wheat and barley have. After obtaining water productivity all products, on all networks, statistical tests, they tested and differences in the level of significance of 5%, evaluated and those networks that have the best performance in every product, we have chosen. Finally, we recommend suitable cropping patterns and productivity gained. This pattern of cultivation, the crop pattern running on the network, and finally we compared introduced and presented the final cropping pattern. In the second part of this study, the effect of effective rain water productivity index was assessed. The productivity of rain water before and after impact with each other, were compared by paired t-test and the result was that in wheat, barley and alfalfa there is a significant difference at a significance level of 5%. But very little corn this difference was not significant. Because of the corn in the summer and no significant rainfall is in summer.
-
ارزیابی اثر دبی های مختلف بر پیاز رطوبتی سیستم آبیاری قطره ای- نواری (T-Tape) در اراضی شیبدار
احسان اسماعیلی 1394Drip Irrigation with high performances on steep lands, is a prope irrigation system in Iran and other countries. In Drip Irrigation system design wetting pattern is very important. One of the most important criteria when designing a drip irrigation system - a strip geometry is wetted soil caused by T-Tape Irrigation. The shape and dimensions of the wetting front are affected by some factors such as soil texture, soil saturated hydraulic conductivity, flow and volume output, slope and time depend on irrigation. To evaluate the effect of slope on wetting pattern using a linear water supply a study has been taken in research field, at Shahid Chamran University Ahvaz, Iran. In this research two flow rates 6 and 9 liters per hour per unit length, three slopes, including flat, 2 and 5 percent with three replications were used. The soil texture was silt loam. The results of statistical analysis showed that with increasing discharge and slope, width and depth, area and volume soaked increases. The results showed these differences are significant in 5% level for 2 and 5 percent slopes compared to flat. Increase width soaked in for the rate of 6 liters per hour in slope of 2% with compared to a flat, 10 percent and for slope 5%, was 20 percent. Also the increase for width in the rate of 9 liters per hour respectively was 3 and 13 percent. Increase depth soaked in for the rate of 6 liters per hour in slope of 2% with compared to flat, 12.5 percent and the slope of 5%, was 25 percent. Also the increase for depth in the rate of 9 liters per hour respectively was 17 and 35 percent. Increase area in for the rate of 6 liters per hour in slope of 2% with compared to a flat, 24 percent and for slope 5%, was 56 percent and for flow rate of 9 liters per hour the increase for area, respectively was 28 and 45 percent. In each experiment, the width and depth of the wet irrigation tape were measured to estimate the size of the wetting front of dimensional analysis, simply because of the low number of parameters were used. The results showed that by increasing the slope of the ground, soaked by the bands increased diameter and depth. At last a series of scientific-empirical equations that fit very well with the results showed and this relationship can be well used in the design of drip irrigation
-
بررسی اثر توأمان کاربرد سطوح مختلف سوپرجاذب و شوری آب آبیاری بر خصوصیات فیزیکی و هیدرولیکی خاک در شرایط آزمایشگاهی
شكوهی فر-مرضیه 1393As the increasing water use has raised, so has the growing population water resources have made methods adapted in order to increase water use efficiency in agricultural field. One of those methods contains using super absorbent (SAP) polymers that could be noticed for the mentioned purpose. These materials are able to increase water storage in the soil by absorbing water and, deliver it to plant when they need water. In agricultural, SAP are used as an additive substance into the soil, a repository of food, and also the super absorbent in the soil. The main aim of adding these materials in the soil is increasing soil water holding capacity. Another strategy in order to face water scarcity crisis can be considered paying attention to uncommon waters such as waste water, salt water and brackish water. Such a situation, examination the effect of salinity on physical and hydraulic soil properties is essential. This research was conducted at the lab of Chamran university of Ahvaz during winter and spring 2014, with the aim of examination effects of SAP on soil water holding capacity, soil porosity and saturated hydraulic conductivity in the lab situation. This experiment was carried out in factorial layout based on complete random blocks design with three replications. The factors included three levels of SAP (0, 0.3, 0.6 weight percent) and three salinity water levels (2.6, 4, 6 ds/m), Two kind of polymer were applied, super absorbent polymer A200 made in Iran and super absorbent Aquasorb French one. After two months irrigation - seven days courses- sampling of soil was done in order to measure porosity and soil moisture under different suctions. Beside the saturated hydraulic conductivity in column soil was measured. Statistical analysis was conducted at five percent, consequently the effects of applying SAP on water holding capacity, wilting point, available water, saturated hydraulic conductivity and porosity was significant. Increasing the levels of using SAP caused those physical features to raised, and to decrease saturated hydraulic conductivity. The effect of salinity on the foregoing was significant statistically, instead saturated hydraulic conductivity. Rising salinity decreased all the physical features. The interaction effect of salinity and level of using SAP on available water, soil porosity and also water holding capacity of French SAP was significant at the level of five percent. Additionally raising using SAP increased the electrical conductivity of waste water. In this study, applying both kinds of polymer didn’t lead to significant difference on pH and drainage volume. As to examined properties Iranian and French polymer had same and close application.
-
ارزیابی کارآیی ارابه طراحی شده بر روی سامانه آبیاری ارابه ای (قرقرهای) و مقایسه آن با سامانه موجود در مزرعه عصمتیه قم
دوست محمدی-محمدمهدی 1393Abstract : One of the main purposes of sprinkler Irrigation is the uniform distribution of water in the farm in order to not only supply crop water but also prevent wasting water. Travelling Gun System is an always-mobile kind of sprinkler irrigation that irrigates farm in dgrder-like manner. Using different model of devices, a cart with new features is designed. Esmatyeh’s cart irrigation salient properties is two irrigation wings, adjustability of sprinkler height commensurate with the type and value of the product, and reducing energy consumption. Esmatyeh Farm is one of the dedicated lands of Holly Shrine of Hazrat Fatemeh Masumeh, where Travelling Gun System has been implemented. Two used sprinklers in Esmatyeh Farm are cart Komet-163 with nozzle size of 10 mm and a sprinkling of the old one manufactured by NELSON with BIG GUN-SR 150 nozzle size 17.8 mm. To evaluate and compare the performance of Esmatyeh cart and old one in this field, in the summer of 2013 a study was conducted in two Animated Cart fixed Cart and for this purpose uniformity coefficient, uniformity of the distribution, adequacy of Irrigation, efficiency of the distribution, performance and evaporation of water application winds servitude were studied. The results showed that water spray pattern in Esmatyeh cart in the fixed state of near sprinklers (water distribution circle) will shed more water and the greater the distance from sprinkling, the less shed water on the land will be that is an appropriate model of the water distribution pattern. In depth profile of water spray system of old cart in fixed state, the depth of reached water to the ground at the distance of 10 m from the center of the cart decreases. Within the distance of 10 to 20 m from the cart the amount of reached water to the ground increases and will be at the maximum amount within the distance of 20 to 30 m. The average uniformity coefficient of Esmatyeh in fixed cart state is 46% and the average distribution uniformity of this case is 26.3%. The average of oldcart’s uniformity coefficient in fixed state is 61% and the uniformity distribution in this case is 44.8%. The comparison of evaporation losses and wind drift in these two irrigation carts shows that the average of evaporation losses and wind drift in Esmatyeh cart is 23.5% and the average of this parameter in the old cart is 42.1% in which the difference of 18.6% indicates of the decrease of evaporation losses and wind drift. In Esmatyeh cart the average of uniformity coefficient in mobile and old cart are 66.2% and 65.1% respectively. The average of uniformly distribution in the old cart and Esmatyeh cart are 48.3% and 44% respectively. On average in 86.5% of covered Esmatieh farm the efficiency of irrigation was accomplished, and the average of the efficiency of irrigation in the old cart was calculated as 66.7%. The average of Application Efficiency in the low quarter of farm covered by Esmatyeh and old cart are 32.5% and 24.7% respectively. The average of Application Efficiency in the farm that was irrigated by Esmatyeh cart was 50.2% and the average of this index was 48.8% for the old cart. According to fulfilled simulations the uniformity coefficient for Esmatyeh and old cart in overlap mode were 78.5% and 68.4% respectively, where the uniformity coefficient of Esmatyeh cart in overlap mode was higher than that of the old cart. The average of distribution uniformity for Esmatyeh and the old cart were 65.4% and 60.9% respectively. The difference of performance pressure in two carts was 122.7 kpa. This indicates that the employment of Esmatyeh cart reduces energy consumption and increases the performance of the irrigation system. Considering 25% overlap in each irrigation and the average pressure of 280 pa Esmatyeh cart irrigates a furrow with the width of 38.5 meters and regarding the employed spool, it is capable of irrigating an area of 1.16 ha. Esmatyeh cart irrigates 10% of an area more than the old one in each time of irrigation.
-
برنامه ریزی آبیاری ذرت با استفاده از روش های کنترل رطوبت خاک، اندازه گیری دمای پوشش گیاهی و تشت تبخیر در شرایط اقلیمی اهواز
قربانی-مریم 1393Abstract: Determine the most appropriate time to irrigation is an important decision that farm planners are faced to it. Irrigation scheduling methods includes that: using of plant indexes, soil indexes and meteorological data. In order to scheduling of irrigation of summer Maize in Ahwaz climatic conditions, the present research was conducted using canopy temperature, soil moisture and evaporation pan control, in No. 1 Research Farm of Shahid Chamran University of Ahwaz, 2013-2014 crop years under two different irrigation methods that includes sprinkler irrigation (classical fixed the sprinkler) and surface irrigation (furrow) were performed in three replicates. In order to calculate the upper and lower baseline, CWSI, leaf temperature measurements were done in the days before and after irrigation and to determine the amount of irrigation, soil samples were taken in the days before irrigation. CWSI index for sprinkler irrigation in September and October was 0.14 and 0.18 respectively and the value of CWSI index is equal to 0.14 and 0.15 respectively for surface irrigation. Comparison of Lower stress baseline equation that calculated for surface irrigation and sprinkler irrigation, indicates less water stress due to lower stress baseline in surface irrigation than sprinkler irrigation. Based on measurements of soil moisture monitoring, the gross depth of irrigation for Maize under sprinkler irrigation was 761.4 (mm) and surface irrigation was 799.2 (mm), respectively. According to the calculations, the best pan coefficient as daily basis for Ahvaz climatic conditions with Allen method was found and its value varies between 0.65 and 0.71. The most suitable time for irrigation of summer Maize using evaporation pan class "A" was expressed in August and September after 60 mm and in October after 40 mm of cumulative evaporation from evaporation pan class "A". The results of application performance of irrigation scheduling by CropWat model in standard conditions showed that this model calculates the gross depth of irrigation 50(mm) more than the calculated gross depth of irrigation and express shorter Irrigation frequency than Soil moisture control method.
-
ارزیابی نرم افزار SIRMOD در شبیه سازی آبیاری جویچه ای تحت کشت ذرت (مطالعه موردی: منطقه شاه نشین هرچگان)
رسول پذیرش قهفرخی 1392Iran is placed in the dry belt of the world and there is an inevitable need to perform the irrigation in it. Surface irrigation is the most common method among the available irrigation methods in Iran. However it has less output in Iran. One of the ways to identify and control the factors effective on its optimum performance is to use the mathematical relationships and computer simulation software. SIRMOD , composed of hydrodynamics, zero inertia and kinematic wave, has many applications in designing and managing the surface irrigation. But beside the widespread application of this model around the world, it is less known and used in Iran. Then, in the present study by using the testing and desert data collecting in the agricultural year 2012-2013 in the sample field of Chahrmahal&Bakhtiari Agricultural Research and Natural Resource , first hydrodynamic, zero inertia and kinematic wave models was studied from SIRMOD software package and then the nearest condition to the field condition was introduced to implement the required recommendations for improving the efficiency of the surface irrigation (furrow) system. For implementing this study, three furrows were created , length of each was determined based on the soil texture and 50meter norm of the region. One of the ledges was selected as the main ledge and two other ones were selected for repetition. After preparing the ledges, operation of the culture of NS forage corn. For measuring the input and outputs of each ledge, WSC flume 1type was used. Soil texture of the field was clay loam and mean slope was 0.002. moreover, irrigation of all ledges was done by arc-like siphones. 12 steps of irrigation was done in 7-10 days and the water of the irrigation was provided by a semi- deep well. For this purpose, parameter including physical properties of the field soil, depth of development of the plant root, output and input runoff hydrograph, progression and regression times, ect were recorded. Also by using these parameters, Kostiakoph-Luis equation coefficient, depth of the water penetrated to the various parts of the field and the evaluation parameters of the fields including application of the water in the field, runoff loss percentage, depth penetration and also consistency output were calculated. Then the data required for implementing SIRMOD were entered and the model was implemented. In the next step, outputs of the model were compared with their corresponding results to introduce the nearest condition to the condition of the field. Based on the obtained results, all three SIRMOD software precisely simulated the parameters including application of the water in the field, consistency output, regression time, depth of the penetrated water in the various parts of the fields and loss percentage of the runoff and depth penetration but beside the proper estimation the progression time in the initial points of the field, they didn’t have proper precision in simulating these parameters in the final points of the field. All three models, kinematic wave, zero inertia and hydrodynamic, simulated the output of the water application with the mean error 8.9. finally, based on the results of this study, ability of SIRMOD software for simulating many parameters shows the condition of the corn field under the ledge irrigation in the acceptable limits. Among the available models in SIRMOD software package, kinematic wave model, beside the simplification done in it, has better performance than zero inertia and hydrodynamic model.
-
بررسی الگوی توزیع شوری خاک در سامانه های آبیاری سطحی و بارانی تحت تیمارهای مختلف شوری آب و شبیه سازی آن با استفاده از نرم افزار Hydrus-1D
ناصر فكوری منزه 1392To analyze the soil salinity distribution patterns in the surface and sprinkle irrigation systems under different salinity treatments and simulating by Hydrus-1D, a study is done on Shahid Chamran university research field. Single Cross 704 corn was cultivated in the summer of 2012. The sprinkle irrigation system was double source system. The distance between two laterals was divided in five parts (S1, S2, S3, S4 and S5) as the salinity treatments in three replications. The surface (Furrow) irrigation system consists of five plots as salinity treatments in three replicaions. The amount of applied irrigation water was determined based on soil moisture deficit. The soil sampling was done in four stages during cultivation from four layers (0-30, 30-60, 60-90 and 90-120 cm). The results showed that in both irrigation systems the salt accumulation were increased in all layers and the most saline layer was 0-30 cm. In all treatments the soil salinity decreased along soil depth. The average of salinity in sprinkle irrigation system for the layers of 0-30, 30-60, 60-90 and 90-120 cm respectively was lower, the same, higher and higher than the surface irrigation system. The simulation is done for the third stage of sampling. According to regression coefficients, the simulation was proper on both irrigation systems, but on surface system the best simulation was belong to the 0-30 cm layer, and the simulation accuracy was reduced along soil depth. Generally the model’s salinity simulation results were lower than the observed data.
-
ارزیابی فنی سیستم های آبیاری بارانی اجرا شده در شهرستانهای بردسیر،راین و جوپار استان کرمان
امین ثنایی 1392 -
ارزیابی فنی سیستم های آبیاری تحت فشار در شهرستان خرم آباد
زینب میخك بیرانوند 1392 -
بررسی تغییرات دبی نوارهای آبیاری قطره ای Tape تحت شرایط استفاده از آب های شور و مدیریت های مختلف آبیاری
زینب كلاكج 1392 -
شبیه سازی انتقال آب واملاح درخاک تحت آبیاری قطره ای با آب شوربااستفاده از مدلSWAP
مهدی تابعی 1392 -
برنامه ریزی آبیاری ذرت بهاره تحت آبیاری قطره ای با استفاده از دماسنج مادون قرمز در شرایط اقلیمی اهواز
هادی محمدی 1392 -
ارزیابی مقدار تبخیر وتعرق با استفاده از سنجش از دور و مقایسه آن با روش تجربی (مطالعه موردی:دشت بیرجند)
رضا گنجی زاده 1392 -
ارزیابی شاخصهای یکنواختی توزیع آب و تعیین مناسبترین آرایش در سامانه آبیاری بارانی با دو خط آبپاش موازی
مسعود عیوضی حسن ابادی 1392 -
تاثیر دور آبیاری و دبی قطره چکان بر عملکرد گیاه کاهو در شرایط گلخانه.
علیرضا هوشمندزاده 1392 -
بررسی اثرات کدورت و سطوح مختلف شوری آب آبیاری بر خواص فیزیکی و هیدرولیکی خاک
ایمان نیك روش 1391 -
بررسی تأثیر سطوح مختلف آب آبیاری بر عملکرد گیاه سویا و اجزاء عملکرد آن
معصومه شمس بیرانوند 1391 -
بررسی تاثیر فرصت نفوذ، نفوذپایه و محیط خیس شده در آبیاری جویچه ای
فرزاد حق نظری 1391 -
مقایسه ضرایب معادله نفوذ USDA -NRCS اصلاح شده با روش موازنه ی حجم )مطالعه ی موردی مزارع شرکت توسعه ی نیشکر)
مصطفی قهرمان نژادقراغیلی 1391 -
کاربرد آبیاری چگالشی در نمک زدایی از آب های شور و استفاده مجدد از آن ها در آبیاری و آب شرب
باقر یوسفی 1391 -
اثر سطوح مختلف سوپرجاذبA300 بر روی برخی خصوصیات فیزیکی خاک
كبری خیری شلمزاری 1391 -
بررسی تاثیر کود آبیاری بر گرفتگی چند نوع قطره چکان در سیستم آبیاری قطره ای
فریده انصاری سامانی 1391 -
بهینه سازی تخصیص منابع آب به شبکه آبیاری رامهرمز با توجه به وجود سد مخزنی جره بر روی رودخانه زرد
شادمانی ویسی 1390 -
دینامیک حرکت املاح در پروفیل خاک تحت کشت ذرت با استفاده از نرم افزار SALTMED
محمد هدایتی زاده 1390 -
برسی اثر مقادیر مختلف مصرف آب و آرایش کاشت بر عملکرد ذرت دانه ای رقم SC500 در جنوب خوزستان
یزدان محمدی 1390 -
بررسی اثر تنش رطوبتی در مراحل گلدهی و پر شدن دانه بر عملکرد ذرت بهاره
محمود متولی 1390 -
بررسی روند خشکسالی های واقع شده دراستان کرمانشاه با استفاده از سنجش از دور( دوره آماری 2000-2009)
محسن روشنی 1390 -
تخمین تبخیر از تشت بااستفاده از سیستم استنتاج فازی و برمبنای خوشه¬بندی c-mean
سیده رویا عقیلی 1389 -
بررسی اثر عملیات تهیه زمین بر روی تغییر ضرایب هیدرودینامیک خاک در آبیاری جویچه ای
رضا برادران 1389 -
برسی پتانسیل آسیب پذیری سفره آب زیرزمینی دشت زیدون با استفاده از مدل DRSTIC و GIS و با تاکید بر در اختیار داشتن وتوجه دقیق به پارامترهای ورودی به مدل در یک محدوده معین وتوجه به تغییرات موجود در آبخوان آبخوانهای عمقی و سطحی در سراسر دشت
مهدی كرمی 1386 -
بررسی تاثیر کم آبیاری در سیستم آبیاری قطرهای بر کارآیی مصرف آب در زراعت چغندرقند
مهران بادبزن چی 1386 -
ارزیابی مدلهای آبیاری سطحی در آبیاری نواری مزرعه یونجه واقع در همدان
سعید جلیلی 1385 -
بررسی یکنواختی توزیع آب و تلفات تبخیر و باد در سیستم آبیاری بارانی کلاسیک ثابت با آبپاش متحرک ژاله 5
ارش پردال 1384 -
ارزیابی عملکرد سیستم آبیاری قطرهأی (T-Tape) در مرکز تحقیقات صفیآباد
آرش آذری 1384 -
استفاده از درجه حرارت پوشش سبز گیاه جهت برنامهریزی آبیاری ذرت بهاره در شرایط شمال خوزستان
سعید طاهری قناد 1382 -
بررسی یکنواختی توزیع آب و تلفات تبخیر و باد در سیستم آبیاری بارانی کلاسیک ثابت با آبپاش متحرک A-D-5
امید شیخ اسماعیلی 1382 -
ارزیابی مدلهای آبیاری جویچهای (انتهاباز)
نعمت اله فروردین 1381 -
بررسی تاثیر پخش سیلاب در روند نفوذپذیری سطحی در آبخوان دهلران
ایوب پیرانی 1381 -
بررسی اثرات رطوبت اولیه خاک برمقادیر رواناب رسوب
غلامعلی معلانی پور 1381 -
ارزیابی و تعیین فرسایش خاک با استفاده از روش سنجش از دور و GIS در مدلهای Mpesiac و EPM
كریم قربانی 1381 -
بررسی عملکرد گندم در دو روش آبیاری بارانی و کرتی
علی بناوند 1379 -
طراحی آبیاری نواری به کمک مدل هیدرولوژیکی ماسکینگام
افراسیاب خوشاب 1379 -
بررسی امکان زراعت سیب زمینی در تپه های ماسه ای با استفاده از آبیاری قطره ای و پاششی
مصطفی باروت زاده 1378 -
مقایسه یکنواختی توزیع سیستم های آبفشان دوار و آبفشان خطی در شرایط مختلف باد
سیف اله حقیقی 1378 -
ارزیابی نفوذپذیری خاک در روش آبیاری نواری و روش استوانه های دوگانه و اصلاح ضرایب معادله نفوذ در روش استوانة دوگانه
عباس گزین 1377 -
مقایسه روش های اندازه گیری تخلخل مؤثر در اراضی تحت زهکشی
سید عنوان موسوی نسب 1377 -
بررسی وضعیت و عملکرد آبیاری بارانی در استان خوزستان
عباسعلی پورمحسنی 1377 -
تهیه مدل کامپیوتری طراحی سیستمهای آبیاری بارانی
حمیدرضا حجاری جوشقانی 1376