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[1]ZHOU Qi-gang,ZHANG Xiao-yuan,YANG Fei,et al.Land Use Ecological Risk Evaluation of the Three Gorges Reservoir Area in Chongqing Based on PSR Model[J].Research of Soil and Water Conservation,2013,20(05):187-192.

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Land Use Ecological Risk Evaluation of the Three Gorges Reservoir Area in Chongqing Based on PSR Model

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 05 Page number: 187-192 Column: Public date: 2013-10-28

Title:: Land Use Ecological Risk Evaluation of the Three Gorges Reservoir Area in Chongqing Based on PSR Model

Author(s):: ZHOU Qi-gang¹, ZHANG Xiao-yuan¹, YANG Fei², ZHENG Li¹, CAO Qian-qian¹; 1. School of Tourism and Land Resources, Chongqing Technology and Business University, Chongqing 400067, China;
2. Research Center of the Economy of the Upper Reaches of Yangtze River, Chongqing Technology and Business University, Chongqing 400067, China

Keywords:: land use; ecological risk evaluation; PSR model; the Three Gorges Reservoir Area

CLC:: X826

DOI:: -

Abstract:: The land use of the Three Gorges Reservoir Area has an important influence on the ecological environment. Unreasonable land use patterns lead to ecological environment risks.The data sources include the Landsat TM remote sensing data, social and economic data and environmental monitoring data of the Three Gorges Reservoir Area in 2010. The evaluation index system was built based on the PSR model. And the evaluation model was set up by using the method of principal components analysis to evaluate the land use ecological risks of the Three Gorges Reservoir Area. The results indicated that the main land use ecological risk of Three Gorges Reservoir Area in Chongqing are moderate risk and low risk. And from northeast to southwest the land use ecological risk gradually reduced. There are obvious differences among regional eco-environmental stability of land use. The influences of unreasonable land use on nine districts of Chongqing City and Changshou’s ecological environment are limited. And the land use ecological risk pressures of the central parts of the Three Gorges Reservoir area are low, but the ecological risk state and response values are high. This area should be paid more attention to intensive ecological environment construction in the process of land use, and strengthen the environmental management and environmental monitoring. The results offer reference value for land rational use and ecological protection of the Three Gorges Reservoir Area.

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