ADVANCES IN ECOLOGICAL SECURITY ASSESSMENT RESEARCH IN CHINA

The research on ecological security assessment is one of a hot issue of sustainable development,geography,ecology and environmental science.Using literature and comprehensive analysis,it explained the relationship between the ecological security and other concerning concepts and summed up the commonly used assessment index system,methods of ecological security assessment and standard for grade classification of ecological security assessment in China,proposed the workflow of ecological security evaluation.According to ecological security appraisal research development,the tendency of ecological security assessment in China is: Using the 3S spatial technology and combining with basic theories as landscape ecology,geography etc to unify and improve the ecological security evaluation indicator system and grading standards;emphasizing on dynamic evaluation of simulation and early warning research which is based on the evaluation of credibility and accuracy of the model.