List of Articles تغییر الگوی کشت

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  1 - Analysis of Education and Extension Barriers to Develop Dehydrated Products Resistance in Khorramabad Township
  Hossein Mikhak Mehdi Rahimian Saeed Gholamrezai
  The present research is a survey and applied research where the objectives were to analyze the challenges of development of crops resistant to dehydration and to recognize the status of educational and extension barriers among farmers in Khorramabad township. The statis More

  The present research is a survey and applied research where the objectives were to analyze the challenges of development of crops resistant to dehydration and to recognize the status of educational and extension barriers among farmers in Khorramabad township. The statistical population consisted of two groups of experts in the field of water management and water crops farmers in Khoramabad township in 2016-2017 (N = 7050). From experts 'community of 38 people and from the farmers' society, 202 people were selected by multi-stage sampling method and the required data were collected by a questionnaire. Questionnaire's reliability and validity confirmed respectively through computing Cronbach's alpha coefficient (α=0.761) and content validity. Data analyzed by SPSS software. Based on the results of exploratory factor analysis, barriers to the development of crops resistant to dehydration were classified into four categories: perceptual-attitude, informational-cognitive, service-supportive and educational-promotional. The results of the Mann-Whitney test showed that among the 18 barriers examined, only two barriers to "poor communication between experts and farmers regarding the cultivation of crop resistant crops" and "the lack of up-to-date extension training with site pattern changes" You did not stop developing crop resistant dehydrating products. But the comparison of the average of the presence of any barrier in the region with the average importance of the same obstacle showed that 16 other barriers significantly impeded the development of crops resistant to dehydration in the Khorramabad Township. Manuscript profile
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  2 - Allocation and Management of Water Resources in the Yamchi Dam Basin with Scenario Analysis Approach Using WEAP Model
  Atabak Feizi Reza Aghajani Jomayran
  10.30495/jest.2021.51947.5049
  Background and Objective: Due to limited water resources and increasing water needs, the potentials of water resource allocation using the traditional methods are decreased and the use of new allocation strategies and managing water resources in choosing projects and ma More

  Background and Objective: Due to limited water resources and increasing water needs, the potentials of water resource allocation using the traditional methods are decreased and the use of new allocation strategies and managing water resources in choosing projects and making correct decisions in allocating and managing water resources is more important than ever. The main purpose of the present study is comprehensive management and planning in order to use the existing water resources of Yamchi dam network located in Ardabil province and meet the demand in the drinking, agriculture, industry and environment sectors, taking into account their future needs.Accordingly, Yamchi dam and its downstream areas are simulated in the WEAP model environment and the model is implemented for current conditions and future development projects in ten different scenarios. The proposed scenarios included examining the impact of allocation, industry needs, increasing irrigation efficiency, removing groundwater resources, changing cropping patterns, single cropping, and combined scenarios. The entries included information on the Yamchi dam and reservoir, groundwater resources, and the parameters needed to calculate the nodes for drinking, agricultural, industrial and environmental needs in the period 2008 to 2018.Findings: The results showed that among the proposed scenarios for the areas under study, the scenario of simultaneous change of cropping pattern and 65% increase in irrigation efficiency is the most suitable option among the studied scenarios, which meets time and volume reliability of drinking and agricultural needs by 100% and will reduce the needs of the current situation by 44%.Discussion and Conclusion: It is worth noting that if the groundwater source is eliminated for any reason, none of the solutions of changing the cropping pattern, increasing efficiency, etc. can fulfill the shortage and it is necessary to treat urban, agricultural and industrial wastewaters and reuse one of them. The results show that urban wastewater treatment and reuse can provide about 60 percent of the shortage of groundwater resources. Manuscript profile