Application of ecosystem health cost-effect analysis in eco-planning in Guangzhou City,China |
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Authors: | Guo Xiurui Mao Xianqiang Yang Jurong and Yang Zhifeng |
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Institution: | (1) College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100022, China;(2) School of Environment, Beijing Normal University, Beijing, 100875, China |
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Abstract: | Ecosystem health has been a focal point and research frontier of applied ecology in recent years, increasingly used in urban
ecological studies. To quantify the effect of ecological improvement from eco-planning, an ecosystem health assessment method
is used in eco-planning evaluation and decision support in the urban eco-planning research of Guangzhou City of China. Based
on features of an urban ecosystem, five factors such as vigor, organizational structure, resilience, ability to maintain ecosystem
service, and influence on people’s health were selected to develop the assessment indicator system. Then, to evaluate the
validity of planning measures, a cost-effect analysis of the different scenarios on eco-planning was made, taking investment
of the planned projects as the cost and ecosystem health state after implementing the scenarios as the effect. To establish
priority of all the proposed planning schemes or countermeasures, variation of the ecosystem health state was evaluated when
the investment of eco-environmental construction projects changes by ±10%, ±20% and ±50%, respectively. Thus, the order of
importance of eco-environment construction projects to the urban ecosystem health state can be worked out, providing a reference
for prioritizing the implementation of such urban eco-environmental projects. The study proved the trial value of an ecosystem
health evaluation method in urban eco-planning research.
Translated from China Population, Resources and Environment, 2005, 15(5): 126–130 译自: 中国人口资源与环境] |
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Keywords: | ecosystem health cost-effect analysis urban eco-planning |
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