Ecological environment cumulative effects of coal exploitation in coal mining area

The inherent characteristics of time duration and space expansion of coal exploitation make ecological cumulative effects significant. Because of lack of integrity and inadequate analysis of macro-analysis, the traditional environment impact assessment method which is based on a single project can't satisfy the need of ecological protection. This paper defines the connotation of ecological cumulative effect, summarizes the main research contents and constructs the ecological cumulative effects multi-scale analysis framework in coal mining area. Finally the directions for further study are put forward.