Research on the Spatial Dynamic Ecological Security Assessment for Liaoning Coastal Economical Region based on GIS Technology——A Case of Dalian

2015 
Research on the spatial dynamics can effectively resolve the space,nonlinear and stochastic issues for regional ecological security and help complete the regional ecological security evaluation and prediction. The research is based on GIS technology; it firstly constructs the DPESAR indicator system and starts the data collection for the space; secondly,it applies the entropy method for the ecological security index empowerment and standardizes it; thirdly,it constructs the Grid database by Arc GIS10 software and analyses it quantitatively; the results shows that Lvshunkou District and main urban area of central urban area of Dalian in 2009 to 2011 were in the critical range of ecological security,Wafangdian and Pulandian were in the unstable range of ecological security,and Zhuanghe City and the Jinzhou District of central urban area were in the stochastic status. So this paper can provide the reliable basis for the spatial change of regional ecological security study.
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