Consequences of Decreasing Water on Profit and Cropping Pattern of Golestan Province Farmers under the Deficit Irrigation

Heidari, M. (2014) Consequences of Decreasing Water on Profit and Cropping Pattern of Golestan Province Farmers under the Deficit Irrigation. Masters thesis, University of Zabol.

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Increasing population pressures, demand to the quality of environment, and improving life level led the governments to provide better strategies to efficiently manage the water resources in recent decades. In this regard, most of the countries try to offer new decisions based on water demand management.The present study was aimed to investigate the consequences of available water decrease and it's effect on profit and the pattern of farmers planting in Golestan area under different levels of deficit irrigation. Positive mathematical programing (PMP) is among the applied methods that used these dayse to assess economic models and make suitable decisions in agriculture area. PMP model considered the decrease of efficiency per scale in crops level. So the present study, by applying this model and using the function of CES, tried to study the scenarios of 10% , 20% and 30% decrease of available water under the conditions of deficit irrigation in the irrigation levels of 10%, 20% and 30%. The data collected from related organizations in Golestan province.To solve the provided model, GAMS software 23/9 was used. In this study, at first the yield level of each crop per different levels of irrigation was calculated and then by presenting a simple linear programing model and determining the shadow prices of crops and estimating parameters of cost function, the model was estimated. The results indicated that strategy of decrease in available water causes the decrease in yield and planted area and in the presence of observed deficit irrigation,the planted area of each crop decrease very much relative to irrigation level. Based on the finding, it could be said that by saving and storing water for long term, we can increase or achieve an optimal pattern with the least efficiency decrease

Item Type: Thesis (Masters)
Uncontrolled Keywords: Deficit Irrigation, Positive Mathematical Programing, Constant Elasticity of Substitution, Golestan
Subjects: S Agriculture > SB Plant culture
Depositing User: admin admin1 admin2
Date Deposited: 03 Apr 2016 04:48
Last Modified: 03 Apr 2016 04:48

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