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Studying on Ecological Carrying Capacity in the Downtown Area of Chongqing Based on the Idea of Sustainable Perspective

Author: LiuLiLi
Tutor: LiuJinPing
School: Chongqing Normal University
Course: Physical Geography
Keywords: Ecological carrying capacity Sustainable development The state space method Chongqing City
CLC: X171.1
Type: Master's thesis
Year: 2010
Downloads: 81
Quote: 0
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Abstract


Ecosystem carrying capacity study is the study of earth science, ecology, hydrology, geology, biology and other disciplines at home and abroad in recent years, hot spots, while the urban ecosystem as the role of human and natural composite semi-natural ecosystems, different from the natural composition, structure and function of the ecosystem under conditions to be more and more attention from scholars. Chongqing is the largest city in western China, the scale of urban development in China's western fragile ecological environment conditions, the speed of the fastest growing cities of Chongqing city ecosystem carrying situation studied, with a typical demonstration of significance. In this paper, the main city of Chongqing as the research object to explore the main city of Chongqing ecosystem carrying position, trends and spatial patterns, including the following: (1) described the ecological carrying capacity at home and abroad Research, pointed out that the ecosystem bearing capacity is the characterization of the joint force composed of three-dimensional space by the carrying capacity of resources and environment for the tolerance capacity and elastic force and the various connotations of the force, the role, status and systematic effects described. Natural and social conditions of the ecosystem in the main city of Chongqing, ecosystem spatial pattern and characteristics of the main city of Chongqing from the point of view of geography defined and explained. (2) the introduction of the state-space method to urban ecosystem carrying capacity evaluation among established based on the structural features of the carrying capacity of the ecosystem, the ecosystem carrying capacity evaluation index system of Chongqing City; Analytic Hierarchy Process to determine the weight of the indicators; reference to domestic outside the urban development of the status quo and the development of the eco-city is asked to identify the indicators of the ideal value. (3) evaluate the the ecosystem carrying position nine districts of Chongqing city, the results showed that: Chongqing city in nine districts in the ecosystem in the overloaded state, but the obvious differences in the extent of overloading: of Beibei District and Yubei District two light overload zone mainly located in the north of the main city; Jiangbei District, South Bank area and three in Banan District overload zone located in the central and southern parts of the main city; heavy overload zone is located in the west of the main city of the old city, which Yuzhong District, Shapingba District , Dadukou District and the Jiulongpo District. (4) on the ecosystem bearer status Chongqing City 2000-2008 study results show that: 2000 - 2008, Chongqing city ecosystem state of overloading and overloading the situation has become increasingly serious trend. (5) a comparative study of the main city of Shanghai, Beijing, Tianjin and Chongqing ecosystem carrying status in 2008, the results show that: the ecological pressure: Chongqing gt; Beijing gt; Tianjin gt; Shanghai; bearing potential: Shanghai gt; Tianjin gt; Beijing gt; Chongqing. Chongqing, the carrying capacity of the ecosystem weakest, the pressure of human activities. (6) the use of BP neural network to forecast ecosystem of Chongqing city in 2009 -2020 loading and the results show that: 2009 -2020 Chongqing city ecosystem is divided into three stages, after 2019, the main city of Chongqing ecological system to hold the potential for a positive value, the state can carry. (7) for Chongqing city ecosystem carrying position, respectively, from the three aspects of the pressure, the bearing capacity and the elastic force nine countermeasures. In this study, the main city of Chongqing ecosystem carrying capacity accounting, Chongqing city ecosystem carrying situation provides a useful help for the future of urban development in Chongqing and macroeconomic planning.

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CLC: > Environmental science, safety science > The basic theory for the Environment and Science > Environmental Biology > Ecosystems and pollution ecology > Ecosystems and the ecological environment
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