Ecology Environment Vulnerability Measurement Of State-owned Forest Area In Heilongjiang Province

With the degradation of eco-environment in recent years, the restoring and rehabilitating of regional ecological system have attracted more and more attention in China. State-owned forest area in Heilongjiang province is the largest state-owned forest in China, the total area is 10098 thousands hm2, is the largest natural ecological barrier of Northeast China. In order to support the national socialist construction, State-owned forest area in Heilongjiang province has always provide wood for country, which made the original forest structure was seriously damaged, coupled with the extensive mode of economic growth leads to ecological environment vulnerable. The ecology environment vulnerability of State-owned forest area in Heilongjiang province is becoming the main restrictive factors of regional economy and social development, harmed to sustainable development of state-owned forest area in Heilongjiang province. Developing the research on ecology environment vulnerability in State-owned forest area in Heilongjiang province has strategic meaning on the ecological restoration, reconstruction and the sustainable development of State-owned forest area.Based on previous research results, defines the ecology environment vulnerability connotation of state-owned forest area, consider the essence of ecology environment vulnerability of state-owned forest area is the degree that to deal with internal and external risk factors. After positioning the connotation of ecology environment vulnerability in state-owned forest area, we set up ecology environment vulnerability evaluation index system of state-owned forest area from outside interference and self-recovery capability aspects. In addition, we use principal component analysis to calculate indictors’ weight and use TOPSIS way to monitor ecology environment vulnerability change trend of state-owned forest area in Heilongjiang province, get spatial and temporal ecology environment vulnerability characteristics of state-owned forest area in Heilongjiang province. The results show that the top 9 driving factors of ecology environment vulnerability in state-owned forest area are forest fires victimization rate, forestry laws soundness, non-forest land rate, over mature forest rate, solid waste comprehensive utilization, temperature, total water resources, forest pest and rodent victimization rate, rainfall; the ecological environment vulnerability of state-owned forest in Heilongjiang province showed constantly decreasing trend year by year, and most ecologically fragile forestry mainly in Mudanjiang Forest Authority and Hejiang Forest Authority. Accordingly, this paper have proposed measures and suggestions to reduce the ecology environment vulnerability of state-owned forest area in Heilongjiang province, including establish ecological vulnerability risk early warning system, establish and improve relevant laws and policies, improve management of forest tending, development green industry and improve ecological protection awareness.