Evaluation and practice of mine rehabilitation based on natural resources survey data

The comprehensive treatment of abandoned open-pit mines is an important task in implementing the State Council's Three-Year Action Plan to win the blue sky protection campaign.The use of natural resource survey data to carry out long-term and continuous monitoring of the restoration of abandoned open-pit mines is a necessary method to implement the monitoring of the effectiveness of ecological restoration of mines.To scientifically evaluate the progress and achievements of the ecological restoration, the monitoring and evaluation content by natural resource survey data are discussed from the three aspects of ecological control, land coverage restoration, and landscape pattern, which is based on literature retrieval and field investigations.Evaluation content and corresponding evaluation methods are given.Finally, we take a test in Suzhou city, Anhui province as an example to verify the proposed evaluation content and methods.The research results show that the natural resource survey data can provide rapid monitoring data support for the surface restoration progress, restoration mode, and restoration effect of abandoned open-pit mines, and make it feasible to analyze the surface repair effects of abandoned open-pit mines from the large and middle scales.The research results can provide references for the evaluation of the ecological restoration effects of mines in Anhui province and even the whole country.