Study on evaluation and application of ecological restoration effect of mine slash: Take the mine of Nanmazhuang Township in Laiyuan County as an example

Based on the current situation of ecological restoration of mines in Hebei Province, as well as the problems and difficulties in the restoration, the necessity of establishing an evaluation system of mine ecological restoration effect was clarified. On the summarizing and drawing experiences from previous research results, a mine restoration effect evaluation system consisting of six parameters, namely, vegetation coverage index, plant species diversity index, restoration project stability index, soil quality index, duration index, and restoration and management difficulty index, was proposed, and the quantitative methods of the six evaluation indicators were determined. Based on the evaluation and application of the mine ecological restoration example in Nanmazhuang Township, Laiyuan County, Baoding City, the calculation method of each index was refined. The evaluation results show that the mine ecological restoration effect index (EREI) is 0.822. The ecological restoration effect is generally well, yet there are still some imperfections, which verifies the scientificity and adaptability of the mine ecological restoration effect evaluation system. This study can provide guidance for the followed mine ecological restoration work in the near future.