A Studay Of Artificial Wetland Ecosystem Services Evaluation System

Artificial wetland as an artificial ecosystem simulating the structure and function of natural wetland,besides purifying water body,it also contains many service functions.Artificial wetlands provide a variety of services,including climate regulation,water conservation,pollution control,leisure and entertainment,cultural science and education,which are collectively referred to as ecosystem services.Taking Ecological Zone Around the City in Chengdu as an example,this paper carried out the service evaluation of artificial wetland ecosystem.The research results can not only enrich the theory of environmental ecology,but also promote the development of artificial wetland technology1.Based on the theory of ecosystem service,this paper analyzes the connotation of ecosystem service of artificial wetland from three aspects: material production service,climate regulation service and cultural research service.Based on the analytic hierarchy process and fuzzy membership function,this paper establishes an artificial wetland ecosystem service evaluation system.2.By constructing the weight matrix and selecting membership function,the comprehensive evaluation index of artificial wetland ecosystem services of Ecological Zone Around the City in Chengdu is obtained.The final score was 0.6122.(The perfect score is 1)In the end,comprehensive evaluation index combined with the artificial wetland ecosystem services of Ecological Zone Around the City in Chengdu and the score of contribution rate,this paper analyzes the current ability of ecosystem services from the region service,ecological regulation of material production and cultural research services in three aspects.