Study On Impact And Restoration Of Ecological Environment Of Mining Subsidence In Chongqing Region

The surface settlement, the farmland creates which in the mine development lose, the vegetation destroys, the land uncultivated land (stone) the desert, the water source dries up and so on a series of questions, not only destroyed the mining area ecological environment, even also survives to the local resident the environment to pose the threat. The Chongqing area has the specific climatic conditions, the physical geography characteristic and the vegetation type, its mine mining also has own characteristic to the mining area ecological environment influence. Around research mine mining, picks the depletion region with must to pick the depletion region ground vegetation the growth change rule and the vegetation group falls evolution and replaces the characteristic, to thoroughly understood the Chongqing area mine mining settlement to the ecological environment influence, has pointed proposed the mining area ecology restores the measure, maintains the mining area ecological equilibrium, all has the extremely vital significance.This article obtained from the understanding mine mining settlement basic rule, has analyzed the mine mining settlement to the mining area terrain landform, the hydrology condition soil, the vegetation and so on each kind of influence, through to ZengZiYan bauxite phytocoenology investigation, rarely and preciously was in imminent danger the plant population dynamic investigation, the species multiplicity research, the annual ring ecology research; To meets the spring coal mine ground tree, the bush, herbaceous and the species multiple contrast research, initially grasps the Chongqing area mine mining settlement ecological environment influence the characteristic. In this foundation, proposed the mining area mining subsidence ecological environment restores with the improvement countermeasure and the suggestion, promotes the mining area health continually to develop.The bauxite ecological environment contrast test result indicated that, (1) Has picked the mining area with not to pick the mining area the species multiple index close, has picked the mining area compared to not to pick the mining area species multiplicity also slightly big, cannot see the mining settlement the species multiplicity which falls to ZengZiYan group to be influential; (2) The annual ring growth analysis result indicated that, caves in is not obvious to the arboreal growth influence; (3) The artificial influence to investigates the area group to fall the influence to be extremely big, non- control...