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GEOGRAPHICAL RESEARCH >

2009 , Vol. 28 >Issue 2: 311 - 320

DOI: https://doi.org/10.11821/yj2009020005

Environment and Ecology

Simulating the response of eco-environment to urban expansion

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  • 1. Qinghai Institute of Salt Lakes, CAS, Xining 810008, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China

Received date: 2008-05-27

  Revised date: 2008-11-20

  Online published: 2009-03-25

Supported by

国家科技基础性工作专项重点项目(2007FY110300);中国科学院地理与资源研究所知识创新三期工程项目。

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Abstract

This study aims to disclose dynamic relationship among socio-economic development, land use and eco-environment efficiency by proposing a response model of eco-environment to urban expansion. Firstly, we quantitatively describe the changes of land use from urban expansion by using the technology of remote sensing image interpretation. Secondly, dynamic relationship between eco-environment efficiency and socio-economic development is simulated through proposed model which is constructed based on theories of the maximum social welfare and Green GDP (GGDP). The proposed model is applied to Xi'an, China. Our model proves to be efficienct in simulating the dynamic relationship among land use, economic growth and eco-environmental efficiency through the analysis of urban expansion process in Xi'an. Results show that urban expansion will make the social welfare better only if marginal eco-environment cost caused by the urban expansion is less than the average land use; the improved technology and technological innovation can reduce eco-environment cost and increase land use efficiency, thus postpone the terminal of urban expansion. The simulated result shows that the urban expansion of urbanization process in Xi'an should be suspended in 2024 under the current situation.

Key words： land use; urban eco-environment; urbanization; green GDP; Xi’an

Cite this article

WU Yong-jiao, MA Hai-zhou, DONG Suo-cheng . Simulating the response of eco-environment to urban expansion[J]. GEOGRAPHICAL RESEARCH, 2009 , 28(2) : 311 -320 . DOI: 10.11821/yj2009020005

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