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Research On Economical Environment Of Super City

Posted on:2006-12-30Degree:MasterType:Thesis
Country:ChinaCandidate:C L LiFull Text:PDF
GTID:2166360155455378Subject:Physical geography
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Urban ecological environment is universally considered as an enormous and comprehensive complex ecological system. For urban systematic development, environmental sustainability is the base, economic sustainability is the precondition and social sustainability is the ultimate purpose; therefore, the harmonious development of the three is the key to sustainable development. Due to the influence of natural condition and limitation of resources environment, Chongqing's ecological environment has formed its unique characteristic during the urban development Based on the ecological theory and sustainable development theory, and the domestic and foreign research result and practical experience on urban ecological environment, the thesis, taking Chongqing urban area as its case study on super city, has conducted a tentative study on the Chongqing urban ecological environment through niche state-trend theory and method.Part I is an overall introduction, which is extended to the background and significance of thesis selection, current state of ecological environment study around the world, and the research reason and method of the thesis and its main innovation.Two theories related to ecological environment, namely, ecological theory and sustainable development theory,are introduced briefly in Part II. The concepts and theoretical basis of niche, urban niche, sustainable development and urban ecological sustainable development are explored in this part. This is intended to serve as the theoretical basis of the following practical analyses.Natural environment and social economic environment of Chongqing urban area are introduced in part III. Natural environment includes geological environment, geomorphologic environment, climate and water environment; social economic environment is conducted on the basis of the 2003 social economic survey in Chongqing city and urban area.Part IV is an expatiation of research method of ecological environment and study process of Chongqing urban ecological environment. This is the core of the study. The methods of principal components analyses and niche state-trend analyses are combined in this thesis, and the thesis is also extended to the study of system construction of evaluation system, the selection and treatment of evaluation index. On the basis of this system and method, the thesis has conducted its study and analyses of Chongqing urban ecological environment through production niche, living niche and environment niche.The conclusion and the discussion are presented in Part V. The main conclusions go as follows:a. The quality of Chongqing urban ecological environment is increasing yearly, which is elicited from the analyses of niche state-trend. Except that the three items, including grain production, are decreasing, the niche width of other main production niche and living niche is increasing, which shows that the regional economic level is increasing, and so are the level and quality of people's life.b. According to the analyses of niche state-trend, it is clear that the niche widths in Yuzhong District and Jiulongpo District are the largest, which, in turn, shows that the comprehensive ecological environment quality is rather high in these two districts. The use of social, economic and natural resources is rather wide, and its usage efficiency and benefit is rather high, which leads to the strong competitiveness in the two districts. Conversely, the niche widths in Dadukou District and Jiangbei District are rather small, and their development potentiality is rather small, and new niche needs to be developed.c. Due to the impact of geographical location and condition, the influence of niche on the each district is quite different. Yet the demonstration shows that, on the...
Keywords/Search Tags:super city, ecological environment, niche, sustainable development, urban area of Chongqing
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