Pathway of agricultural land reclamation in subsided closed coal mining areas

Agricultural use of reclaimed land in coal mining areas is a preferred way due to the more population but less arable land in China.However，traditional agricultural benefit is too low to greatly hinder the agricultural reclamation enthusiasm of the local government and coal enterprises.Therefore，it is necessary to explore a new pathway introducing modern and efficient agricultural operation models.Based on the field investigation，RS and GIS technology，and the combination of limit condition method and exponential method，this paper，taking Shenbei mining area in Shenyang coal industry group of Liaoning as an example，analyzed the restraining factors of agricultural reclamation in mining subsidence land and developed the pathways of agricultural reclamation.The results show that the reclamation of the coal mining subsidence land is feasible and necessary for modern agriculture.The shallow subsided area could be reclaimed for characteristic agriculture or ecological tourism agriculture；the seasonal watershed area could be developed for three-dimensional agriculture trinity of breeding，planting，processing or ecological tourism agriculture；large deep water area could be suitable for wetland use or ecotourism.