Abstract: Underground coal-mining leads to severe surface subsidence and thus accelerates soil erosion in the subsidence area. The effects of micro-landform modification on the control of soil and water losses have been observed. However, the theoretical studies of micro-landform modification are still insufficient, and the underlying mechanisms on the control of soil and water losses are unclear. To explore the basic theory of micro-topography modification and analyze its effect mechanisms on soil erosion and vegetation restoration in coal-mining subsidence area, we reviewed the research progresses on micro-landform modification and its application in coal-mining subsidence area. There are three main contents, including the micro-landform features and the law of soil and water loss in coal-mining subsidence area, the measures of micro-landform modification, and the application of micro-landform modification and its effects on ecologicalenvironment. The results showed that: (1) the underground coal-mining can result in new micro-landform changes. (2) The measures of micro-landform modification affect soil moisture, soil fertility, soil erosion, and vegetation restoration, with many of the underlying mechanisms being unclear; (3) The micro-landform modification has positive effects on soil and water conservation and vegetation restoration in coal-mining subsidence area, but related research is not profound enough and needs to be further strengthened. Considering the deficiencies of the current theoretical research and practical application, we put forward future researches on the micro-landform modification in coal-mining subsidence lands, including developing information acquisition methods for micro-landform and its transformation in coal mining subsidence area, exploring the hydrological processes of micro-landform, deepening the underlying mechanism analysis of the micro-landform modification in coal mining subsidence area, and developing the designing modes and technical system of microlandform.

Key words: spatial distribution pattern., agricultural area, community structure, small mammal