Present Situation Evaluation and Research of Ecological Environment Based on GIS

Resource and the environment are a material base on which human being rely for existing and developing,Along with the social economy development,the ecological environment importance more and more takes for the people.This appraisal used the GIS technology,using the composite index appraisal law to establish the ecological environment composite index appraisal model,conducted the appraisal research to Changsha's ecological environment,the appraisal result had indicated,the Changsha ecological environment present situation overall situation was ordinary.In order to prevent the ecological environment worsening,should transform the production method,enhances the environmental protection dynamics.