Frangibility Analysis And Evaluation Of Ecological Environment In Yi Chun National Forestry Area

China’s economy has rapidly developed and people’s living standard has been improved significantly in recent years. However, with the accumulation of national wealth, ecological environment is becoming worse and worse. The restoration and reconstruction of regional economic ecosystem has already caused pubic concern and great attention of society.Yichun national forestry area is the most important one of the national forestry area in China and the pilot of national forest tenure reform and forestry economic growth mode transformation, with the strategic of ecological status, the representation of forestry front and the typicality of economic structure. Over the years, Yichun national forestry area have always provided wood for country overload, which made the original forest structure was seriously damaged and stable implement of ecological service function of forest was also affected, whose extensive mode of growth made the ecological environment vulnerable. The ecological environment in Yichun national forestry area has harmed to state-owned forest region and long-term sustainable development, and is becoming the main restrictive factors of regional economy and social development. Developing the research on vulnerability of ecological environment in Yichun national forestry area will have strategic meaning on the ecological restoration and reconstruction and the sustainable development of national forestry area.On the basis of theoretical research, from unique characteristic of state-owned forest ecological, economic, and social complex system characteristics and vulnerability assessment, this thesis analyzes the causes of the vulnerability of Yichun state-owned forest ecological environment, sets up evaluation index system, determines the weight of evaluation index by using entropy method, analyzes and evaluate the evaluation index by gray correlation analysis. Meanwhile, based on perspective of the vulnerability, this thesis studies the fitness between the industrial ecological niche and the regional ecological niche of national forestry area, explores the optimization programs of industrial development to effectively reduce the vulnerability of environment of the national forestry area.