Abstract:
With the process of coal resource exhaustion and macro policy, there are plenty of abandoned/closed coal mines and the number is increasing.As a damaged and compound ecosystem of society, economy and nature, abandoned/closed coal mines need ecological restoration urgently to reconstruct the natural environment and promote the development of economy and society.This paper summarizes research on closed/abandoned coal mines in recent 30 years from three aspects:①ecological restoration technology of abandoned/closed coal mines from creatures, soil and landscapes; ②ecological restoration evaluation methods of abandoned/closed coal mines from biodiversity, soil properties, remote sensing image and comprehensive system; ③ecological planning of abandoned/closed coal mines from local and regional recovery scale, the former conductes planning from the perspective of point or line from single or multiple local closed/abandoned coal mines, while the latter integrates homogeneous areas of ecological restoration from the perspective of plane to better satisfy the meet of territorial spatial planning.Considering the deficiencies of existing research on the abandoned/closed coal mines, four directions for future research are given, including comprehensive system, top-level design, multidisciplinary merge and new technology.