Ecological Security Assessment On The Westen Of Cangxi County

With the development of technology, man's ability to transform the nature has beenstrengthened. Meanwhile, because the eco-environment is being damaged,humans livingcondition is worsening, and people have to face the results of financial lost. Therefore,ecological security has become an issue that can not be ignored, and the ecological security research has become a hot topic. The problem of land use is analyzed in this paper by studying the changes of the land use in southern mountain of Jinan city combining with the actual situation in this region.In this dissertation,based on the current domestic and foreign research results which are drew on build index system,index selection and evaluation method.According to the scientific, comparability, practicality, systematicness, representative and combining the actual situation of the study areas.we can filter the density of population, natural population growth race,per capiea area of cultivated farmland,forest area per capita,chemical fertilizer combination,pesticide compound per unit of cultivated land,real GDP per capita,Engel coefficient,annual precipitation,forest cover rate,grain yield per hettac,economic density,land resource utilization,rural per capita net incorne,industrial solid waste disposal and utilization,distharge.standard rate of industrial waste water,water and soil Association Scheduling,the number of buses per thousand people,Per million people have the number of schools,the number of beds per million people, 20 evaluating indicaters to constitute the PSR model.Analgsising every countys' resource environmental pressure index,Resource environment state index,Human environmental response index,four degrees are divided according to the actual situation of the study areas.Combining the ecological security index to evaluate every country.The ecological security of township in the western of Cangxi county attaching to it in 2014 is eevaluated. It is revealed the spatial distribution law of ecological security in the swestern of Cangxi county. Acording to the actual situation and the ecological security composite index of the Study areas, The ecological security status of all towns are divided into 4 degrees: safe, safer, critical safety,unsafe. The results showed that:Lingjiang town belongs to the unsafe. Zhongtu, Yuanxi,Bamiao towns belong to the critical safety,Yuanba,Huanma,Tingzi,Sanchuan,Shimen,Baihe,Longwang,Shimen,Dongqing, Chanlin, Zheshui,Wulong towns belong to the safer.Yunfeng,Baiqiao,Yongning towns belong to the safe.In a word,The land ecological system has been damaged, but the service function and structure is good, and after the disturbance, it has the strong ability to repair itself.The ecosystem have been destroyed by human activating,with natural resource shortages in the study areas.With the development of the economico,people's level of consumption have improved,in order to protecte the environment,we must change the ways of consuming and development to achieve the circular economy with “green,economy, efficient”.Improving people'senvironmental consciousness and realizing the sustainable development of economy and environment.