Based On The Mutation Progression Method The Liaoning Province Ecological Security Evaluation And Spatial Differentiation Research

Ecological security has been paid close attention under the background of increasinglyseverely ecological and environmental problems around the world. Based on the summary ofthe concept, significance, characteristics and research methods of eco-security in domesticand international, the paper has elaborated catastrophe progression method theories andmodels. At the same time, ecological security assessment index database has been establishedby means of pressure-state-response framework (P-S-R). Ecological security status ofLiaoning province also has been evaluated through catastrophe progression method.Meanwhile, the spatial and temporal evolution of eco-security of Liaoning province during2001-2010has been explored by using of spatial analysis methods on the basis of theevaluation results. The results showed that:(1) Ecological security index has presented upward trend in the past decade besides it inFuxin, Panjin and Chaoyang, which indicated that ecological security status has beenimproved significantly in research region. Fushun owned the highest ecological security index,yet Fuxin has experienced greatest fluctuations of eco-security situation.(2)According to the impact of the various subsystems on ecological security, the state ofresource and environment subsystem played the most important role in ecological securityevaluation, then the pressure subsystem on the basis of P-S-R model.(3) Population growth, industrial wastewater discharge compliance rate and the nature reservearea ratio exerted greater affect on ecological security station through the key indicatorsanalysis.(4) Local self-correlation analysis of ecological safety results has revealed that eco-securityindex and state of resource and environment has highly correlation. In2001, negativecorrelation for the space. In2005for the space is associated. In2010for the space isassociated. The northwestern in Liaoning province has displayed low-level aggregation, butthe coastal area such as Dandong and Dalian has reflected high aggregation in past decade. Atlast, some countermeasures and suggestions have been put forward to regulate ecologicalenvironment and measure eco-security.