Study On The Evaluation Of Urban Ecosystem Heaith In Changbai Mqnutain Region

City is the product of human society development to a certain stage,with the speeding up of urbanization,the rapid population growth,causing the shortage of resources,environmental pollution,biological decline,excessive land use,city "city disease" began to emerge.The deterioration of ecological environment,people understand the ecological system of the significance of human existence,people live in urban ecological environment,in particular,in recent years,people's life quality and the improvement of life quality and attention to the natural environment and ecological environment,clear understanding to build a benign and healthy city ecological system become the urgent request.As a key development area of jilin province,whether the ecological system is coordinated and whether the urban ecological system is healthy is related to the future economic development of changbai mountain.This paper 13 cities in changbai mountain area as the research object,on the basis of the current urban ecological environment,based on set pair analysis method of urban vitality and energy index analysis on the ecological environment of changbai mountain region city health evaluation of ecosystem health assessment,combining the main problems and countermeasures.The main research contents are as follows:(1)to clarify the purpose of this study and the urban area of changbai mountain,and to establish the urban ecosystem health evaluation index system of changbai mountain based on the urban ecological status of this region.(2)use data in 2004 and 2015,from the structure,function,development,evolution law,choose life,living situation,life state,productivity four indicators,building based on set pair analysis method of the index system of urban vitality index.Selection of vigor,organization structure,restoring force,maintain,and environmental service function of five indicators,according to the entropy weight method to determine the weight,based on set pair analysis of urban ecosystem health can value index,index system and assessment.(3)the first according to set pair analysis of urban vitality index analysis,according to urban ecosystem health vitality index larger correlation with living situation,life state and correlations exist in life may be smaller,and the degree of life there is no significant correlation.Just four of yanji city vitality index and degree of evaluation set is relatively close to the optimal city for internal comparison,degree of life is relatively good in four partial,productivity and living state somewhat weak,living situation is relatively poor.Secondly according to set pair analysis of urban energy index analysis,it is concluded that the restoring force of 2004 and 2015,and the environment effect is doing relatively well in the five partial,service functions to maintain a little weak in 2015,the vitality and organization structure are relatively poor.Finally,according to the results of urban ecosystem health evaluation and the existing problems,the corresponding Suggestions are put forward.This article from the changbai mountain area urban ecosystem health assessment,not only for the protection of the urban ecosystem research provides a new case,also in changbai mountain area provide theoretical foundation and scientific basis for urban development and planning,is advantageous to the changbai mountain tourism development,the optimization of urban land use,promote the construction of changbai mountain region ecological civilization demonstration area and the development of the green transformation development play a positive and provide services.