Study progress on evaluation technology of ecological performance on coal mining abandoned land

Based on the academic papers about the evaluation technologies of ecological performance on coal mining abandoned land at home and abroad,the selection of evaluation index,the establishment of the index system,the construction of evaluation criteria and the application of evaluation method of evaluation of ecological performance were summarized. Then the paper pointed out that,at present,the general evaluation system of ecological performance had not been brought on domestic and overseas coal mining abandoned land.The main reason was that the long- term,systemic dynamic monitoring and mechanism research of the relationship between plant and environment was less.Given this,the selection of evaluation index was not systematic and the choosing of evaluation objects were blind. Building longterm and dynamic monitoring network of plant-environment system,exploring new evaluation methods of ecological performance,selecting scientific,systemic and practical evaluation indexes and standards would be the development tendency for the future evaluation technology of ecological performance on coal mining abandoned land.