Effect of coal mining-induced subsidence on the soil water system of rice paddy and its countermeasures of invprovement: A case study of Songzao miming area

At present, ecological reclamation of land in mining-induced subsided area is one of the focus problems that the land management is facing. The paper, taking the mining-induce subsided area in Songzao mining area as object of research, through site investigation and literature summarization analyzed the composition characteristics of the soil water system of paddy field, systematically discussed the physical characteristics and the infiltration status of water flow in water-bearing soil section of soil water system before coal mining, aiming at the changes, put forward the concrete countermeasures for ecological restoration and land reclamation in mining area.