By the environmental characteristics and conditions , there are 3 first grade areas , 5 second grade areas , and 7 third grade areas in the mining areas of Liaoning Province.Those are the water erosion mining area , waterwind erosion mining area , and wind erosion mining area; water erosion mining area with surface matter similar to soil , water erosion mining area with surface matter similar to rock , water-wind erosion mining area with surface matter similar to soil , water-wind erosion mining area with surface matter similar to rock , and so on.In addition , regional area , characteristics , and the key of vegetation reconstruction are considered.