水土保持研究2011，Vol.18Issue(1)：205-209,5.
基于水资源高效利用的农业种植结构及灌溉制度优化——以民勤灌区为例
The Optimization of Agricultural Planting Structure and Irrigation System Based on the Efficient Use of Water Resources -A Case Study of Minqin
摘要
Abstract
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.关键词
非充分灌溉/灌溉制度/种植结构优化/大系统递阶分析/民勤县分类
农业科技引用本文复制引用
徐万林,粟晓玲,史银军,南彩艳,杨雪菲..基于水资源高效利用的农业种植结构及灌溉制度优化——以民勤灌区为例[J].水土保持研究,2011,18(1):205-209,5.基金项目
国家自然科学基金(50879071) （50879071）
国家科技支撑计划(2006BAD29B02) （2006BAD29B02）
公益性行业科研专项(200801104) （200801104）
西北农林科技大学青年学术骨干支持计划 （）
