List of Articles شبکه آبیاری و زهکشی

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  1 - Factors Affecting Water Users' satisfaction with the performance of irrigation and drainage network plains of VARAMIN
  Masoume Afshani Mahdi Sarai Tabrizi Mostafa Teimoori
  10.30495/jaeer.2022.64074.10905
  Satisfaction of users in interaction with the irrigation and drainage network is one of the important concerns of executives and officials in the field of agriculture and water. The aim of this study was to identify the factors affecting water users' satisfaction in the More

  Satisfaction of users in interaction with the irrigation and drainage network is one of the important concerns of executives and officials in the field of agriculture and water. The aim of this study was to identify the factors affecting water users' satisfaction in the area of Varamin irrigation and drainage network using a questionnaire by field-documentary method and random sampling. The statistical population of users and water users under the network coverage and sample size (Cochrane relationship) was determined to be 98 people. It was a questionnaire that the validity of the research tool was completed by completing 30 prototypes, and the reliability was assessed with the opinion of university professors and experts. Education, level of water ownership, positive and significant exploitation system, age, agricultural history and type of cultivation have a negative and significant effect. Receiving water, preventing frequent visits, reducing costs and optimal distribution of water in the covered lands, lack of effective inter-organizational cooperation in land consolidation and obtaining permits, insufficient irrigation and drought information, indicate the level of impact on user satisfaction. Manuscript profile
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  2 - بررسی مبادله آب مجازی و تأثیر آن بر بهره وری آب در اراضی تحت پوشش شبکه آبیاری و زهکشی میاناب شوشتر
  افشان فارغ زاده اصلان اگدرنژاد
  آب اولین و اساسی ترین عامل محدود کننده تولید محصولات کشاورزی است و بدون شک، بحران آب به عنوان یکی از چالش های بین المللی مورد توجه دولت ها و جوامع بشری می باشد. با توجه به اینکه آب مجازی برای اولین بار به عنوان راهی برای مقابله با کمبود آب در کشورهای دارای منابع آب محدو More

  آب اولین و اساسی ترین عامل محدود کننده تولید محصولات کشاورزی است و بدون شک، بحران آب به عنوان یکی از چالش های بین المللی مورد توجه دولت ها و جوامع بشری می باشد. با توجه به اینکه آب مجازی برای اولین بار به عنوان راهی برای مقابله با کمبود آب در کشورهای دارای منابع آب محدود مورد استفاده قرار گرفت، لذا کشورهای با آب کم باید به واردات مواد غذایی از کشورهای دارای آب فراوان به منظور صرفه جویی در منابع محدود آب بپردازند. بنابراین آب مجازی می تواند در کشورهای کم آب مانند ایران به عنوان راهکاری برای کاهش فشار بر منابع آب در نظر گرفت. لذا توجه به مقوله آب مجازی به عنوان راهکاری جهت مدیریت مصرف آب در شرایط بحرانی کم آبی می تواند ضروری به نظر برسد. هدف از این پژوهش، محاسبه آب مجازی محصولات کشاورزی بوده و پس از شناسایی جریان آب مجازی و برآورد میزان آن، شاخص های میزان صادرات، واردات و خالص مبادله آب مجازی، بهره وری، شدت مصرف آب در منطقه و وابستگی یا خودکفایی منطقه به آب مورد نیاز بررسی شده است. محصولات مورد مطالعه در این پژوهش، صیفی جات شامل خیار و گوجه فرنگی بوده که اطلاعات مورد نیاز از سال 1390 الی 1396 جمع آوری شد. نتایج نشان داد، صیفی جات جزء محصولات کم مصرف با بهره وری آب بالا قرار دارند و صادرات آب مجازی در مقایسه با واردات آب مجازی بیشتر بوده و خالص آب مبادله آب مجازی 32/7838- مترمکعب در هکتار است. همچنین شدت وابستگی به آب در منطقه پژوهش در طول دوره افزایشی بوده و در کل از نظر تأمین آب مورد نیاز برای تولید محصولات کشاورزی (خیار و گوجه فرنگی) خودکفا می باشد. Manuscript profile
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  3 - Assessment of Changes in Groundwater Quality and Quantity of Mianab Shushtar Plain after the Construction of Irrigation and Drainage Network
  mehrdad kakolaki Hossein Eslami
  Irrigation and drainage networks construction are affecting the quality and quantity of groundwater. This study aims to evaluate the quantitative and qualitative changes of Mianab Shushtar plain aquifer after the construction of irrigation and drainage network in 2008. More

  Irrigation and drainage networks construction are affecting the quality and quantity of groundwater. This study aims to evaluate the quantitative and qualitative changes of Mianab Shushtar plain aquifer after the construction of irrigation and drainage network in 2008. First by checking annual hydrograph of the plain, the changes of ground water storage volume during years of before and after the implementation of irrigation and drainage network were evaluated. During 2005-06 to 2008-09 in the third year, 6.4 million cubic meters of underground water reservoir storage volume decreased and from 2008-09 to 2013-14, 9.07 million cubic meters of underground water storage volume has been added. With comparison in the same period, it was found that change in the reservoir is largely influenced by the amount of annual precipitation. Then calculate the groundwater balance, factors affecting the reservoir volume changes were studied. The results showed that 2008-09 and 2009-10 balance was -3.59 and 5.44. Most important factor in changes in groundwater reservoir was the amount of annual rainfall and operation of the network had not a significant impact in increasing the groundwater level. In the following to investigate qualitative changes of underground water sources, the Wilcox diagram for two years before and after the construction of irrigation and drainage network was used. The results showed that due to high groundwater level before the network operation, more sampling points was in class of too salty and unusable for agriculture. Therefore network operation had not significant effect in the quality of groundwater resources. Manuscript profile
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  4 - Evaluation of operation of the first and second units of Dariun Shushtar irrigation and drainage network by classical method
  Mohammadreza Gohari Behbahani Mohammad hossein purmohammadi
  In order to determine the strengths and weaknesses of the management of operation and maintenance of irrigation and drainage networks of Daryun 1 and 2, the mentioned network was examined using the classical evaluation method. For evaluation in the model, the indicators More

  In order to determine the strengths and weaknesses of the management of operation and maintenance of irrigation and drainage networks of Daryun 1 and 2, the mentioned network was examined using the classical evaluation method. For evaluation in the model, the indicators were divided into five windows: technical, service-management, environmental, social and economic. 66 required indicators of the model were identified. To weigh the indicators, a specialized questionnaire of pairwise comparisons of the index was designed and provided to the experts.According to the results of the questionnaires, 11 matrices were prepared for each section and then a matrix was prepared for each group. The internal numbers of the mentioned matrix were obtained from the geometric weight average of each 11 matrices.Finally, the weight of window indicator indices was calculated by special vector calculation method by Maple software, then the numerical value of different window indices was calculated using SAW model.Based on the results obtained from the model calculations, the environmental window with a score of 0.956 is in the first place and its evaluation is good. The evaluation of the network in social, service-managerial, technical fields with scores of 0.864, 0.853, 0.827 in the next categories, respectively It is located and evaluated as average and the network has the lowest rank in economic fields with a score of 0.768. In general, it can be said that the performance of Dariun irrigation and drainage network with a score of 0.853 is generally average. Manuscript profile