摘要
【目的】建立基于熵权法和模糊集对分析法的水资源安全评价模型,为水资源安全的评价及管理提供决策支持。【方法】结合评价区域的实际情况,遵循科学性、系统性、代表性等指标选取原则,构建水资源安全评价指标体系及评价等级标准,并由熵权法确定指标权重,进而利用模糊集对分析法建立水资源安全评价模型。将该模型应用到榆林市水资源安全评价中,并分别与多目标决策分析和模糊聚类评判法的评价结果进行对比分析。【结果】应用基于熵权法和模糊集对分析法的水资源安全评价模型对榆林市水资源安全的评价结果表明,榆阳区的水资源处于较安全范围,神木、靖边和定边属于临界安全范围,其余8县均属于较不安全范围;榆林市整体处于较不安全状态,水资源安全形势严峻。不同方法评价结果的对比分析表明,利用模糊集对分析法与其他2种方法得到的评价结果基本一致。【结论】模糊集对分析法的评价结果客观合理,方法简单,易实现计算机编程,对区域水资源安全评价具有一定的应用价值。
【Objective】 Based on entropy method and fuzzy set pair analysis evaluation method,a safety evaluation model of water resources is established,which provides decision support for the safe evaluation and management of water resources.【Method】 This paper combines actual situation of evaluation area,follows the indicator select principle which includes scientificity,systematicness,representativeness and so on,constructs a water resources safety evaluation index system and evaluation grading standard,determines index weight by the entropy method,then establishes the safety evaluation model of water resources by fuzzy set pair analysis evaluation method.The model is applied to evaluate safety of water resources in Yulin City,and the evaluation results are compared and analyzed by means of multi-objective decision analysis and fuzzy cluster evaluation respectively.【Result】 The water resources＇ safety in Yulin is evaluated by the safety evaluation model based on entropy method and fuzzy set pair analysis evaluation method.The results show that Yuyang＇s water resources belong to a relatively safe range,Shenmu,Jingbian and Dingbian are critically safe,and the others are less safe.In general,Yulin is not safe and the water resources have a grim situation.Results of different methods are compared,showing that the evaluation results which are obtained by the fuzzy set pair analysis evaluation method and the other two methods are the same basically.【Conclusion】 The fuzzy set pair analysis evaluation method is simple and easy to realize computer programming,meanwhile the results are objective and reasonable.So this method has a very good application value in safety evaluation of regional water resources.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2011年第10期209-214,共6页
Journal of Northwest A&F University(Natural Science Edition)
基金
国家"863"高技术研究发展计划项目(14110209)
国家重大科技支撑项目(2006BAD11B05)
西北农林科技大学博士科研启动基金项目(01140504)
西北农林科技大学科研专项(08080230)
关键词
熵权法
模糊集对分析法
水资源安全
水资源评价
安全等级
entropy method
fuzzy set pair analysis method
water resources safety
water resources evaluation
safety grading standard
