List of Articles مدیریت مصرف آب

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  1 - Effect of agricultural water use management on food security of farmers’ households in family farming system: case study of Kermanshah county
  Hossein shabanali fami mostafa moradi Ali Asadi
  The purpose of this research was to investigate the effect of agricultural water use management on food security in family farming system in Kermanshah county. The statistical population of the study consisted of 9656 of irrigation farmers in Kermanshah county. Sample s More

  The purpose of this research was to investigate the effect of agricultural water use management on food security in family farming system in Kermanshah county. The statistical population of the study consisted of 9656 of irrigation farmers in Kermanshah county. Sample size was determined using Cochran’s formula, 217 farmers were selected by stratified sampling method. Validity of the questionnaire was confirmed by content validity method using the comments related to the panel of experts (faculty members of the department of agricultural management and development at university of Tehran) and its reliability was confirmed by Cronbach’s alpha coefficient (0.73-0.81). SPSSWin23 software was used to analyze the data. The results of path analysis showed that agricultural water use management directly and indirectly influences farmers’ food security by improving product quality and product diversity, changing crop pattern, increasing agricultural consumption and agricultural production, and also increasing inputs’ productivity and income increase. Improving Farmers' water use management In addition to increasing production and productivity of inputs and improving farmers' income, it will increase farmers' access to a diverse and quality food basket and ultimately improve their food security. Manuscript profile
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  2 - Analysis of farmers' behavior in using low pressure irrigation technology based on the development of the decomposed theory of planned behavior
  arezo mokhtari hesari roholah rezaei Hossein shabanali fami ali nemati
  10.30495/jaeer.2022.64576.10907
  The present study aimed to analyze the Farmers' Behavior in Using Low-pressure Irrigation System. This qualitative study is performed in East Azarbaijan province. The statistical sample population consists of 393 farmers out of 112010 farmers of East Azarbaijan province More

  The present study aimed to analyze the Farmers' Behavior in Using Low-pressure Irrigation System. This qualitative study is performed in East Azarbaijan province. The statistical sample population consists of 393 farmers out of 112010 farmers of East Azarbaijan province. The research instrument was a researcher-made questionnaire that face validity and convergent validity were used to assess the validity of the questionnaire. The results of confirmatory factor analysis showed that the mean of variance extracted was acceptable for the studied structures (AVE≥0.522). Also, the combined reliability value was suitable for all structures (CR≥0.785). The SPSS version 20 and AMOS version 21 were used to analyze the data. In order to better understand the main factors influencing the behavior of low-pressure irrigation systems, the research model was based on the Decomposed Theory of Planned Behavior (DTPB) and extended. In this study, two variables of moral norm and self-identity have been added to the initial model of the decomposed theory of planned behavior, which has made it more complete and comprehensive. The results of using structural equation modeling showed that EDTPB had a suitable effectiveness and efficiency to predict farmers' behavior in using low-pressure irrigation system. In addition, variables including compatibility, advantages, facilitators, self-efficacy, attitudes, moral norms, self-identity and behavioral control were explained 72% of the variance changes. Also, the variables of benefits and adaptation explained 33% of the variance of attitudes towards the use of low pressure irrigation system and the variables of self-efficacy and facilitators explained about 21% of the variance of farmers' behavioral controling of the application of low pressure irrigation system. Manuscript profile
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  3 - Simulation of yield and evapotranpiration of forage maize using AquaCrop model
  Mohammad Ghorbanian Kourd Abadi Abdol Majid Liaghat Ebrahim Vatankhah Hamideh Noory
  Crop models such as AquaCrop can be a useful tool for better management of water consumption. However, these models should be evaluated before applying. In this study, the accuracy of the AquaCrop model  in estimating shoot fresh weight and evapotranspiration of Ma More

  Crop models such as AquaCrop can be a useful tool for better management of water consumption. However, these models should be evaluated before applying. In this study, the accuracy of the AquaCrop model  in estimating shoot fresh weight and evapotranspiration of Maize in different soil fertilities and soil textures was evaluated. Field experiments were done as a factorial experiment in a completely randomized design with three soil texture treatments (including silty clay loam, loam and sandy loam) and three levels of soil fertility (including without added fertilizer, adding one and two percent of the fertilizer into the soil). The study was conducted in summer of 2012 in Jey and Qahab region in Isfahan. Results of this study showed that prediction of the model  for shoot fresh weight of fodder maize was extremely efficient. The normalized root mean square errors (nRMSE) of the shoot fresh weight of fodder maize for calibration and validation stages were obtained as 0.87% and 0.67%, respectively. Predicting maize evapotranspiration during the growing season by the model had a higher error rate. Maximum and minimum of the root mean square error was obtained in the sandy loam soil with the addition of two percent of the fertilizer treatments (SLF2) and loam soil by adding one percentage of the fertilizer (LF1) with values of 0.88 and 1.42 mm per day, respectively. Results of this study showed that the mean values of RMSE and nRMSE in simulating maize evapotranspiration for sandy loam soil were 1.16 mm and 24.3% that were more than mean values of RMSE and nRMSE for silty clay loam soil type and loam which were 1.08 mm, 26.2% and 0.93 mm, 20.4%, respectively. However, the model accuracy in predicting maize evapotranspiration was varied at different levels of soil fertility depending on soil types so that the maximum value of RMSE in the loam soil was obtained in treatment without fertilizer (LF0) and in sandy loam soils in treatment with two percent fertilizer (SLF2). Manuscript profile
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  4 - The Effect of Nanostructured Silica Aerogel on Water Use Efficiency of Corn under Deficit Irrigation Conditions
  Hamideh Asvadi Fayaz Aghayari Leyla Samiee
  10.22034/jest.2018.17340.2602
  Introduction : To study the effect of nanostructured silica aerogel as a soil moisture absorbent on yield and water use efficiency of corn and comparison with superabsorbent, a field experiment was carried out in factorial split plot arrangement using randomized complet More

  Introduction : To study the effect of nanostructured silica aerogel as a soil moisture absorbent on yield and water use efficiency of corn and comparison with superabsorbent, a field experiment was carried out in factorial split plot arrangement using randomized complete block design with four replications at Research Farm of Islamic Azad University, Karaj, Iran, in 2013-2014 growing year. Material and Methods: Deficit irrigation with three levels including irrigation with 100, 75 and 50 percent crop water requirement that were located in the main plots and moisture absorbent materials with three levels including non-use absorbent material, used of superabsorbent (30 kg/ha) and used of silica aerogel (5 kg/ha) that were located in the sub plots.Results: The results showed that the highest grain yield (12684 kg/ha) was achieved in condition of irrigation with 100% crop water requirement and used of silica aerogel. The sue of superabsorbent and silica aerogel increased grain yield. While in condition of irrigation with 100% crop water requirement silica aerogel consumption as compared to superabsorbent to increase grain yield was a significant advantage, but in condition of irrigation with 75 and 50% crop water requirement silica aerogel and superabsorbent were in a statistical group. The use of superabsorbent and silica aerogel increased water use efficiency for grain yield (116.2 and 154.1 percent, respectively) and water use efficiency for biologic yield (38.4 and 85.9 percent, respectively) as compared with non-use.Conclusion: Therefore, application of nanostructured silica aerogel is recommended for increasing of yield and water use efficiency of corn. Manuscript profile
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  5 - Explaining the sociological model of water consumption management in the central catchment area of Zanjan province
  hadi yasser mozaffaraddin shahbazi Meysam Mousaaei
  10.30495/jest.2023.67556.5686
  Background and Objective: In the current situation, the pattern of water consumption and its knowledge in different areas are not paid attention to, and the strong need to know the amount of consumption and the factors affecting it is quite noticeable. Currently, the ce More

  Background and Objective: In the current situation, the pattern of water consumption and its knowledge in different areas are not paid attention to, and the strong need to know the amount of consumption and the factors affecting it is quite noticeable. Currently, the central watershed of Zanjan province is facing a severe water crisis. And the purpose of this research is to determine the social factors affecting the management of water consumption and to draw its sociological model in the mentioned basin and to provide solutions to the water crisis in the region to the administrators and water managers. Material and Methodology: This research is a combination of quantitative and qualitative methods using a multi-level model alignment plan, the quantitative part with the statistical population of 19125 agricultural operators and the selection of 377 operators as a sample through the Cochran formula using the survey method and the qualitative part using the method Delphi was launched in 1401.has been implemented In the qualitative section,30 experts have been purposefully selected from among the employees of the Agricultural Jahad Organization, the Regional Water Administration and the agricultural elites of Zanjan province. Findings: In this research,the quantitative and qualitative parts complement each other,the quantitative part shows that the variables of cultural capital,economic capital,social participation,social cohesion and social trust have a direct relationship with the variable of water consumption management.Among the issues raised by the society's elites in the three stages of the Delphi method are the existence of wrong habits,the lack of laws,the welfare of officials and the lack of attention to issues such as the integrity of the land and the lack of correct cultivation patterns in water consumption management. Discussion and Conclusion: By examining the variables studied in the quantitative section and the findings of the Delphi method, we came to the conclusion that the variables of social cohesion, social trust,social participation,cultural capital and economic capital explain 60% of the changes in the water consumption management variable, as well as the category of local leaders.approved laws,established rules,social motivation,commitment and expertise in human resources, technical issues and single governance are the categories resulting from the Delphi method that affect water consumption management.At the end of the research,the sociological model of water consumption management was drawn with the help of the results of both quantitative and qualitative parts. Manuscript profile
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  6 - بررسی رژیم آبی جریان ورودی به تالاب بامدژ به منظور تدوین الگوی مدیریت محیط زیست پایدار
  معصومه کمالی کاظم حمادی فروزان فرخیان
  در سال­های اخیر توسعه طرح­های منابع آب و کشاورزی، توسعه جوامع انسانی، پدیده تغییر اقلیم و خشکسالی بیشترین اثرات محیط زیستی، اجتماعی و اقتصادی را در کشورهای در حال توسعه و حتی صنعتی بجا گذاشته است. تالاب بامدژ با وسعتی حدود 4000 هکتار در جنوب غرب خوزستان واقع شده More

  در سال­های اخیر توسعه طرح­های منابع آب و کشاورزی، توسعه جوامع انسانی، پدیده تغییر اقلیم و خشکسالی بیشترین اثرات محیط زیستی، اجتماعی و اقتصادی را در کشورهای در حال توسعه و حتی صنعتی بجا گذاشته است. تالاب بامدژ با وسعتی حدود 4000 هکتار در جنوب غرب خوزستان واقع شده که از رودخانه شاوور تغذیه می­شود. به نظر می­رسد مدیریت محیط زیست پایدار تالاب بستگی به شناخت عوامل محیطی شامل پارامترهای دخیل در تکوین جریان حوضه ی آبریز مشرف به آن دارد. این تالاب به همراه رودخانه شاوور میدان تحقیق حاضر را تشکیل می‌دهند. مطالعه حاضر با هدف بررسی رژیم کمی و کیفی جریان آب ورودی به تالاب بامدژ و ارائه یک الگوی مناسب مصرف آب به منظور بهبود مدیریت محیط زیست تالاب صورت گرفته است. در تحلیل مقدماتی به نظر رسید که سری سالانه جریان ورودی به تالاب از دو سری نمونه مجزا شکل گرفته است. در ادامه کار سری اولیه داده­ها و دو سری نمونه به طور جداگانه تحلیل شده­اند. جهت تحلیل آماری و نشان دادن تمایز دو سری نمونه از یکدیگر از نرم­افزار آماری SPSS بهره­گرفته شد. به تبع سری سالانه جریان، مقادیرکیفیت آن نیز مورد توجه قرار گرفته و به عبارتی برای پارامترهای کیفی همچون EC،TDS، مجموع کاتیون­ها، مجموع آنیون­ها وpH دو سری مجزا مطابق رژیم جریان و یک سری کلی استخراج و مورد تحلیل آماری قرار گرفتند. که اکثر نتایج نشانگر اختلاف معنی دار دو سری آماری بودند. بر این اساس یک الگوی مدیریتی محیط زیست تالاب با تاکید بر کمیت و کیفیت جریان ورودی به تالاب ارائه شد. این پارامترها شامل آبدهی قابل برنامه ریزی معادل 600 میلیون مترمکعب، نیاز شرب 3 میلیون مترمکعب، نیاز صنعت 7 میلیون مترمکعب، نیاز آبزی پروری 25 میلیون مترمکعب، نیاز کشاورزی 500 میلیون مترمکعب، نیاز زیست محیطی هیدرولوژیکی 142 میلیون مترمکعب می­باشد. رعایت الگوی فوق ضمن تامین نیازهای بالا دست مانند کشاورزی و آبزی پروری، نیازهای زیست محیطی تالاب را تامین کرده و موجب پایداری سیستم تالاب می گردد. Manuscript profile