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Analysis method of urban ecosystem

An ecosystem and analysis method technology, applied in the field of environmental science research, can solve problems such as the inability to effectively analyze and evaluate the structure and function of urban ecosystems, and achieve the effect of strong objectivity, strong systematicness and strong continuity

Inactive Publication Date: 2010-12-08
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

[0006] The present invention aims at the problem that the existing technical methods cannot effectively analyze and evaluate the internal structure and function of the urban ecological system, integrates the existing technologies such as the urban composite ecological system theory, material flow accounting, ecological network analysis and mathematical statistical simulation analysis, and designs A method for simulating, evaluating and analyzing urban ecosystems, including system definition, ecological network model construction, structure and function analysis, etc.

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  • Analysis method of urban ecosystem

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Embodiment example 1

[0030]Select four typical cities and analyze their energy utilization systems. The contribution rate of each component to the system is shown in the figure below. From the perspective of production and consumption relations, the weight of producers in city 4 is relatively large, reflecting its relatively strong energy supply capacity; from the perspective of the weight of primary consumers, city 2 has the largest weight, indicating that it invests more in the energy conversion industry; Judging from the weight of senior consumers, city 1 is the highest, reflecting its high level of energy demand; judging from the weight of reducers, city 4 is the largest, reflecting that its energy utilization system has a relatively strong self-regulation ability. Cities 1, 2, and 3 present an irregular "inverted pyramid" structure, while city 4 presents an irregular "pyramid" structure, which has a lot to do with the proportion of the energy conversion sector in the entire system. In order t...

Embodiment example 2

[0032] Select four typical cities, analyze the material and energy flow relationship between the five system components of the external area, local environment, industry, agriculture, and family, determine the mode of action and symbiosis among the components of the urban ecosystem, and finally reveal the city's Complex ecological relationships in the inherent network structure of ecosystems (Table 4). The results show that the symbiosis index of the four cities is significantly different under the same network structure, and the symbiosis index of city 1 is better than that of city 3, and much higher than that of city 2 and city 4. The reason is that the system components plunder, control, Differences in the distribution of ecological relationships such as competition and symbiosis. For example: the ecological relationship between the local environment and the external area of ​​a city is (-, +), reflecting the plundering of resources in the external area by its urban develop...

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Abstract

The invention belongs to the field of environmental science research, in particular to a synthetic systems analysis method for evaluating an urban ecosystem. Aiming at the problems that the internal construction and the functions of the urban ecosystem can not be effectively analyzed and evaluated and subjectivity and discreteness can not be avoided by using a traditional method, the invention integrates the prior arts, such as an urban compound biological system theory, material flow accounting, biological network analysis, mathematical statistics simulation analysis, and the like into a whole. The method for simulating, estimating and analyzing the urban ecosystem comprises the following contents, such as system definition, biological network model construction, structure and function analysis, and the like. The method is suitable for analyzing the structure and the functions of the urban ecosystem, and comprehensively estimating the operation conditions of the urban ecosystem, and can be popularized in other complicated systems, such as an industry system, a consumption system and single factor systems of energy resources, water and the like.

Description

[0001] Field [0002] The invention belongs to the field of environmental science research, and is a method for comprehensively and systematically analyzing and evaluating the urban ecological system, especially suitable for analyzing the structure and function of the urban ecological system, and comprehensively evaluating the operation status of the urban ecological system. Background technique [0003] Under the background of my country's rapid urbanization, various urban ecological environmental problems have become one of the main factors hindering the sustainable development of cities, and the rapid growth of economy and population will further cause these problems. Due to the complexity of the problem itself, its solution involves the participation, intersection and synthesis of multiple disciplines, and each discipline has proposed solutions to different aspects of the problem from different angles. Among them, from the perspective of system theory, the city is regarded...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/00
Inventor 张妍杨志峰李盛盛李娅婷杨乃巾
Owner BEIJING NORMAL UNIVERSITY
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