南水北调与水利科技2016，Vol.14Issue(6)：56-61,104,7.DOI:10.13476/j.cnki.nsbdqk.2016.06.010
广义水资源利用效率综合评价指数的时空分异特征
Spatial and temporal differences of agricultural water utilization composite index in irrigated farmland of China
摘要
Abstract
Based on the use of generalized water resources and the existing evaluation index system of agricultural water ,regional irrigation efficiency ,water productive efficiency ,source of water resources and consumptive ways to build agricultural water uti‐lization composite index (C‐index)were considered .Based on data collected from major irrigation districts of China ,this paper quantified irrigation C‐index from 1998 to 2010 ,explored the spatial differentiation characteristics .The results showed that :the C‐index at provincial level presented an increasing trend ,and the national C‐index increased from 0 .550 to 0 .704 ,the structure of water for food production trended to be rationalized ;Spatial autocorrelation analysis results showed that ,C‐index on provin‐cial scale gathered significantly in space ,Moran′s I inspection values were higher than the confidence level (0 .01) .High value provinces were concentrated in Huang‐Huai‐Hai Plain and north of Changjiang River ,low value provinces were widely distribu‐ted in the south of Changjiang River ,Northeast and Southeast China ;Attribute of local autocorrelation was stable ,and about 20 provinces showed high‐high positive autocorrelation(HH)and low‐low positive autocorrelation(LL) .Spatial differentiation char‐acteristics of C‐index from natural features ,agricultural production conditions were also analyzed .This paper provides references for development of evaluation methods for agricultural water use and macro policies of water resources management .关键词
蓝绿水/农业用水综合指数/空间格局/灌区/粮食安全/中国Key words
blue-green water resources/agricultural water utilization composite index (C-index )/spatial distribution pattern/irrigation district/food security/China分类
建筑与水利引用本文复制引用
王丹丹,杨陈玉,何鑫,王振昌,操信春..广义水资源利用效率综合评价指数的时空分异特征[J].南水北调与水利科技,2016,14(6):56-61,104,7.基金项目
国家自然科学基金（51609065；51309080）；中央高校基本科研业务费专项资金（2015B11014） FundNational Natural Science Foundation of China （51609065；51309080）；Fundamental Research Funds for the Central Universities （）
