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基于向量夹角余弦的喀斯特地区水资源承载力评价
引用本文:袁子勇,焦树林,杨萍,金开梅.基于向量夹角余弦的喀斯特地区水资源承载力评价[J].安徽农业科学,2011(11):6668-6669.
作者姓名:袁子勇  焦树林  杨萍  金开梅
作者单位:黔南民族师范学院历史与社会文化系;贵州师范大学地理与环境科学学院;黔南州水文水资源局;都匀市三中;
基金项目:贵州省科学技术基金项目[黔科合(2009)2251]; 贵州省高层次人才特助基金[TZJF(2009)25]; 教育部科学技术研究重点项目(210201)
摘    要:目的]基于向量夹角余弦法,评价贵州省各地区的水资源承载力。方法]采用向量夹角余弦法确定指标权重,运用多目标灰色关联投影法计算贵州省各地区的水资源承载力投影值,并以均方差法确定的指标权重计算出的投影值作对比研究。结果]2种方法求取的投影值非常接近,且排序结果一致。结论]在水资源承载力评价中,运用向量夹角余弦法确定指标权重是可行的。

关 键 词:向量夹角余弦  指标权重  灰色关联投影  水资源承载力

Assessment on the Water Resources Carrying Capacity in Karst Area Based on the Cosine Vector Included Angle
YUAN Zi-yong et al.Assessment on the Water Resources Carrying Capacity in Karst Area Based on the Cosine Vector Included Angle[J].Journal of Anhui Agricultural Sciences,2011(11):6668-6669.
Authors:YUAN Zi-yong
Institution:YUAN Zi-yong et al(Department of History and Social Culture,Qiannan Normal College for Nationalities,Duyun,Guizhou 558000)
Abstract:Objective] The research aimed to assess the water resources carrying capacity in Guizhou Province based on the cosine vector included angle method.Method] By using the cosine vector included angle method,the index weight was determined,and the projection value of water resources carrying capacity in Guizhou Province was counted by using the multiobjective gray relational projection method.Moreover,the projection value which was counted by the index weight determined by the mean variance method was as the ...
Keywords:Cosine vector included angle  Index weight  Gray relational projection  Water resources carrying capacity  
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