Study On The Issues And Sustainable Development Of Ecological Environment In Coal-dependent Cities

As a special kind of city types, the coal-dependent cities have been getting the widespread concern of the academia in recent years. There are many coal-dependent cities in our country, and they are occupying the important position in the city system. At present, China is at the mid-industrialization and the accelerated urbanization stage, and the demand for mineral resources will show a strong upward trend. As a special type of city functions, the coal-dependent cities can offer mass production supplies for socio-economic development in our country, doubtlessly can play a prominent role in urbanization and industrialization. However, coal is a Nonrenewable Energy, with the coal resource exhausted and the reform system deepened, the coal-dependent cities exist some outstanding antinomies and issues in current development that have obstructed the coal-dependent cities' development. To realize sustainable development, the coal-dependent cities must pay attention to the reunification of environmental benefits, social benefits and economic benefits.Owing to this, this paper takes Huainan City as a case that is in the middle period, applying integrated research methods, and studying on the problem and the sustainable development of ecological environment in coal-dependent cities. The full paper is divided into six chapters on the construction, in a specific way as follows:In chapter one, the author defines the basic concepts, summarizes the domestic and international interrelated research, and introduces the background of this selected works, studying contents, research method and studying district position.In chapter two, according to the collected data, the author introduces the issues of ecological environment in coal-dependent cities, and analyzes how the special industrial structure and space construction influence the ecological environment.In chapter three, the author introduces the sinking area, its type and the influence to ecological environment, and then analyzes the synthesized modes and obstacle factors.In chapter four, aimed at the eco-environment peculiarity of coal-dependent cities, a index system of ecological quality assessment is built to appraise the main characters of the coal-dependent cities'eco-environment qualitatively and quantitatively. General assessment model of coal-dependent cities'eco-environmental quality is set up. Then at last the ecological environment quality of Huainan is assessed and some corresponding countermeasures on sustainable development of urban ecological environment are put forward from the aspects of nature, economy and society. The author tallies up the modes about the protection and development of ecological environment in coal-dependent cities,and analyzes the influence factors of the mode choice.In chapter five, the author expatiates the content of recycling economy,the meaning and the necessity that the coal-dependent cities develop recycling economy, and introduces the modes of developing recycling economy and the coupling between the industry, and sets up three big leadership systems, putting forward protection measures that can push forward the recycling economy develop, in order to improve the ecological environment in coal-dependent cities.At last, the author tallies up the main conclusion and the standpoint of the full text,and points out the further investigative problems from now on.