基于云模型的喀斯特山区海绵系统综合效益评价

Comprehensive Benefit Evaluation of Sponge System in Karst Mountain Areas Based on Cloud Model

针对喀斯特山区水系统存在的问题,根据当地的自然环境特征和经济发展状况,提出喀斯特山区海绵系统的构建思路。为真实反映该海绵系统的综合效益,提出了组合赋权-云模型评价方法。首先构建能反映喀斯特山区海绵系统特色的评价体系,接着采用层次分析法和熵权法确定评价指标的权重,最后引入云模型和相似度计算确定评价等级。以湖北保康县后坪镇九池村为研究对象,构建喀斯特山区海绵系统,并进行综合效益整体评价。结果表明,喀斯特山区海绵系统明显改善了当地的生态、经济和社会效益。组合赋权-云模型的评价方法既准确客观,又具有可行性和有效性。

In view of the existing problems of water system in karst mountain areas,the construction strategy of sponge system in karst mountain areas was proposed according to the local natural environment characteristics and economic development.A combination weighting and cloud model evaluation method was proposed to truly reflect the comprehensive benefits of the sponge system.Firstly,an evaluation system reflecting the characteristics of sponge system in karst mountain areas was constructed.Then,analytic hierarchy process and entropy weight method were used to determine the weight of evaluation indexes.Finally,cloud model and similarity calculation were introduced to determine the evaluation level.The sponge system in karst mountain area,Jiuchi Village,Houping Town,Baokang County,Hubei Province,was constructed and its comprehensive benefit was evaluated.The sponge system in karst mountain area obviously improved the local ecological,economic and social benefits,indicating that the combination weighting and cloud model evaluation method was accurate,objective,feasible and effective.