干旱地区农业研究2017，Vol.35Issue(1)：219-227,9.DOI:10.7606/j.issn.1000-7601.2017.01.33
基于主成分分析和层次分析法相结合的陕西省农业干旱风险评估
Agricultural drought risk assessment in Shaanxi province using principal component analysis and AHP
摘要
Abstract
Agricultural drought disaster mechanism is complex,and its evaluation index is numerous .With the aim of developing reasonable evaluation index and evaluation of drought risk,this study took Shaanxi province as the research object,based on principal component analysis and AHP with the combination of agricultural drought risk assessment in-dex system and evaluation method .The results showed that under the condition of considering regional drought resistance ability,drought risk showed a decreasing trend from north to south and from east to west of Shaanxi .For Yulin region of northern and eastern Weinan,Shangluo prefecture,agricultural drought risk is higher .By combining principal component analysis and AHP evaluation system,we can select evaluation index,reduce index number,and accurately assess the drought risk .关键词
农业干旱/风险评估/主成分分析/层次分析法/陕西省Key words
agricultural drought/risk assessment/principal component analysis/analytic hierarchy process(AHP)/Shaanxi province分类
农业科技引用本文复制引用
何斌,王全九,吴迪,苏李君,单鱼洋..基于主成分分析和层次分析法相结合的陕西省农业干旱风险评估[J].干旱地区农业研究,2017,35(1):219-227,9.基金项目
国家自然科学基金（51239009；51409212；51409213）；陕西省水利科技计划项目“陕西省农业干旱风险评估与区划研究” （）
