基于投影寻踪的云南省农业水资源效率评价  

Efficiency Evaluation of Agricultural Water Resources in Yunnan Province Based on Projection Pursuit Model

作　　者：殷欣[1] 刘小刚[1] 张彦[1] 耿宏焯 杨启良[1] 杨具瑞[1] 

机构地区：[1]昆明理工大学现代农业工程学院,云南昆明650500

出　　处：《水土保持通报》2013年第5期271-275,共5页Bulletin of Soil and Water Conservation

基　　金：国家自然科学基金项目"有限灌溉对云南干热河谷区小粒咖啡的水氮耦合效应"(51109102);"调亏灌溉条件下作物水氮高效利用机制和供水供氮模式"(50879073);"限量灌溉和施氮对小桐子产量和品质效应研究"(51009073);"十二五"国家科技支撑计划项目(2011AA100504);云南省应用基础研究资助项目(2010ZC043);云南省教育厅重点项目(2011Z035)

摘　　要：为探讨云南省农业水资源利用效率,选取与资源利用效率、经济效益、生态效益相关的15个指标,将遗传算法与传统的优化方法结合,利用投影寻踪技术的基本原理,建立了农业水资源利用效率评价模型。利用该模型对云南省16个地区2000,2005及2010年的农业水资源利用效率方案进行综合评价,优化农业水资源利用效率的状态变量指标的最佳投影方向,确定各样本的投影值,从而对各地区进行分类和评价。评价结果很好地反映了各评价指标的贡献率和方向性,符合高原季节性干旱地区农业水资源利用的现状。To investigate the use efficiency of agricultural water resources in Yunnan Province, an evaluation model of agricultural water use efficiency was established by selecting the resource use efficiency, economic benefit, ecological benefit and other related 15 indexes, combining genetic algorithm with traditional optimi zation method, and using the principles of projection pursuit regression（PPR） technique. The model was used to comprehensively evaluate agricultural water scheme of 16 areas in Yunnan Province in 2000, 2005 and 2010, optimize the best projection direction of state variable index of the agricultural water resources use effi ciency, and obtaine each sample projection value, so as to classify and evaluate each area. The evaluation re sult best reflects the contribution and directivity of each index and accords with plateau seasonal drought re gion of the agricultural water resources status.

关 键 词：遗传算法 投影寻踪 云南省 农业水资源 效率评价 

分 类 号：TV213.9[水利工程—水文学及水资源]