基于多指标的水安全评价模型研究  

Water Safety Evaluation Model Based on Multiple Index

作　　者：任永泰[1] 姚继平[2] 高春雨[1] REN Yong-tai YAO Ji-ping GAO Chun-yu(College of Science, Northeast Agricultural University, Harbin 150030,China College of Engineering, Northeast Agricultural University, Harbin 150030, China)

机构地区：[1]东北农业大学理学院,哈尔滨150030 [2]东北农业大学工程学院,哈尔滨150030

出　　处：《节水灌溉》2016年第10期73-76,共4页Water Saving Irrigation

基　　金：黑龙江省自然科学基金项目(E201321);国家自然科学基金项目(51179032)

摘　　要：通过建立基于多指标水安全评价模型,设计最佳水安全评价指标体系,得到了更加有效的水安全指数。针对水安全评价中存在信息冗余和评价效果差的问题,利用相关分析与主成分分析相结合的方法,剔除不重要的评价指标,运用熵权法得到2002-2011年建三江水安全最终评价指标中各评价对象的综合得分,即水安全指数。实例分析表明,该方法提高了评价模型的显著性和有效性,且计算过程可以被有效控制,为多指标水安全评价提供了新思路。By establishing a water security evaluation model based on multi-index and designing an optiraal evaluation index system of water security, a more effective water security index is gotten. According to the problems of information redundancy and the poor e valuation effect in water security evaluation, this paper first uses the correlation-principal component analysis to eliminate unimpor tant evaluation index, then uses the entropy method to obtain comprehensive scores of Jiansanjiang＇s every evaluation object in ulti- mate evaluation index from 2002 to 2011, namely water security index. The case analysis result shows that the proposed method im- proves the significance and validity of the evaluation model, what＇s more, the calculation process can be effectively controlled. In a word, the proposed method provides a new idea for the multi-index evaluation of water security.

关 键 词：水安全评价 相关分析 主成分分析 熵权法 

分 类 号：S27[农业科学—农业水土工程] TV87[农业科学—农业工程]