[1]XU Wan-lin,SU Xiao-ling,SHI Yin-jun,et al.The Optimization of Agricultural Planting Structure and Irrigation System Based on the Efficient Use of Water Resources—A Case Study of Minqin[J].Research of Soil and Water Conservation,2011,18(01):205-209.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 01
Page number:
205-209
Column:
Public date:
2011-02-20
- Title:
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The Optimization of Agricultural Planting Structure and Irrigation System Based on the Efficient Use of Water Resources—A Case Study of Minqin
- Author(s):
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XU Wan-lin, SU Xiao-ling, SHI Yin-jun, NAN Cai-yan, YANG Xue-fei
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College of Water Conservancy and A rchitectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
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- Keywords:
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non-sufficent irrigation; irrigation system; planting structure optimization; hierarchical analysis of large-scale systems; Minqin county
- CLC:
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S274.1;S344
- DOI:
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- Abstract:
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In order to solve the problem of allocating irrigation water between single-crop different growth stages during the growing and crops in an irrigation district, a double-layer model which can simultaneously optimize crop irrigation system, plant structure and irrigation quota was established based on principles of hierarchial analysis of large-scale systems under the condition of non-sufficient irrigation.The first layer model optimized single-crop irrigation system based on dynamic programming with the objective of maximum crop relative yield, and the second layer model optimized crop planting structure and irrigation quota based on nonlinear optimization with the objective of maximum net benefits agriculture.The model has a wide range of applications that not only offers macroeconomic policy-making for government departments, but also provides farmers with specific irrigation methods.129 million cubic meters water was saved, gross and net agricultural production benefits were increased by 599 and 425 million Yuan respectivly with the application of the model in Minqin in representative year of 75% guarantee rate.