Analysis And Dynamic Prediction Of Compound Ecosystem In Mining Area Based On Ecological Footprint Model

The compound ecosystem in mining area is a complex dynamic ecosystem of multi-level and multi-function.It is a compound ecosystem of natural ecological environment,economy and society which dominated by mineral resources exploitation and utilization. Integrity,openness,regional,non-self-discipline and human subjectivity are its characters. The natural resources and human are the main power for ecosystem development. at the same time,the human's disturbance broke the naturtion cycling of natural compound ecosystem and aggravated degeneration of ecological environment in mining area, there are out of line development for compound ecosystem in mining area which located in the ecological fragile area.Selected Pingshuo mining area as the research object. analysed the feedback relationship between the society subsystem,economy subsystem, resources and environment subsystem of compound ecosystem in Pingshuo mining area.Indication: ecological environment is the objective conditions of society progress and economy development. Society progress is the foundation and security for economy development. economy development is the main reason which affected the ecological environment, and detaily analysed the cause and effect feedback in various subsystems.Combined the long time sequence analysis method,empirical mode decomposition, dynamic prediction model with ecological footprint model. overcomed the defects of static and unpredictable of ecological footprint model.analysed the ecological footprint, ecological carrying capacity and ecological deficit of the compound secosystem for Pingshuo mining area in 20 years.The results show that:There is asymmetry between the mining land supply construction and society-economy development demand construction since 1999. the ecological deficit is 0.7141hm2/cap in 2008. Its prediction model indicate that if the current consumption patterns and ecological management continued in Pingshuo mining area, Then the ecological deficit will further increase in compound ecosystem. adopted the principle of overall balance to recover land.the ecological carrying capacity in compound ecosystem is the largest. In order to increase the diversity of ecological footprint model.Analysed the ecological footprint index,ecological footprint efficiency,ecological diversity index and ecological economic development capacity of compound ecosystem in Pingshuo mining area. From the view of ecological footprint index, the system is in weak state.Analysed the ecological economic development capacity, the economic development capacity growth is mainly depended on the growth of ecological footprint of compound ecosystem in Pingshuo mining area at present or the next decade, economy increases at the expense of natural capital stock. Therefore, It is necessary to explore ecosystem management of compound ecosystem in mining area. The production in mining area should shift from industry chain to the ecological industry chain,the life way shift from material civilization to ecological civilization. and the management and decision-making of mining area should shift from linear thinking to system thinking.Strengthen land reclamation and ecological restoration, build the recycling economy development model of ecological industry chain, ensure compound ecosystem in mining area to develop continually.