Study On Villages Of Coal Mining Area’s Land Ecosystem Health And Related Controls

Along with our country’s urbanization speeding up unceasingly,ecological problems loom large and cause the attention of the public,the theoretical research and empirical analysis of land ecosystem health evaluation,an important part of scientific and reasonable to solve ecological problems,is becoming a research hotspot.Because of the villages of coal mining area’s nature,society and economy situation,the ecological environment problem of this kind of area is becoming increasingly prominent,so land ecosystem health research in this area is extremely important.Therefore,taking Chang river basin in Jincheng city of Shanxi province as the research area,based on related theory of the land ecosystem health,using the index system method and the catastrophe theory,land ecosystem health of this area was evaluated and obstructions of this area was carried out by using obstructive degree model.At last,this paper carried out related controls of this area.This research includes the following several aspects:(1)This paper studied the land ecosystem health research both at home and abroad,analyzed differences and similarities among mathematical models.(2)This paper summarized the characteristics of VOR model and NES model,above this,this paper built land ecosystem health evaluation index system by VOR-NES framework model.(3)The analysis model of villages in coal mining area’s land ecosystem was constructed by one-dimensional variable catastrophe models which were based on the catastrophe theory.(4)Obstructions of this area was carried out by using obstructive degree model.(5)According to the natural,social,and economic characteristics of this area,this paper put forward related controls of the coal mining area of the loess plateau’s land ecosystem health.Through the research,this paper obtained following conclusions:(1)Indexes of 47 units of Chang river basin land ecosystem health were less than 0.970 which means land ecosystem of 47 administrative villages in the study area respectively were sub-healthy,unhealthy and pathological.Nearly half of the administrative village’s land ecosystems pathological.(2)Obstructive vigor index and resilience index of Chang river basin land ecosystem respectively were ten times larger than obstructive organization index.According this,the reason why 47 units of Chang river basin land ecosystem health indexes were less than 0.970 was vigor index and resilience index were weak.(3)To improve the health index of the coal mining area of the loess plateau land ecosystem,this paper put forward that local area should focus on how to improve the vigor index and resilience index.To improve the vigor index,this paper put forward that local area can focus on how to increase the forest coverage rate from the aspects of stock and new woodland.To improve the resilience index,this paper put forward that local area should promote the whole watershed water resources planning and water right system controls in this area.