[1]周启刚,张晓媛,杨霏,等.基于PSR模型的三峡库区重庆段土地利用生态风险评价[J].水土保持研究,2013,20(05):187-192.
　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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基于PSR模型的三峡库区重庆段土地利用生态风险评价

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 20 期数: 2013年05期 页码: 187-192 栏目: 出版日期: 2013-10-28
Title:
Land Use Ecological Risk Evaluation of the Three Gorges Reservoir Area in Chongqing Based on PSR Model
作者:
周启刚1, 张晓媛1, 杨霏2, 郑莉1, 曹倩倩1
1. 重庆工商大学 旅游与国土资源学院, 重庆 400067;
2. 重庆工商大学 长江上游经济中心, 重庆 400067
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
关键词:
土地利用; 生态风险评价; PSR模型; 三峡库区
Keywords:
land use; ecological risk evaluation; PSR model; the Three Gorges Reservoir Area
分类号:
X826
摘要:
土地利用变化对生态环境有着重要的影响，不合理的土地利用方式会对生态环境带来风险。采用三峡库区重庆段2010年TM遥感数据、社会经济数据以及环境监测数据，采用PSR模型构建评价指标体系，利用主成分分析法建立评价模型，对三峡库区土地利用生态风险进行评价。结果表明：三峡库区重庆段土地利用生态风险以中度风险和较低风险为主，生态风险由东北到西南逐渐减轻。区域土地利用生态环境稳定性存在明显的差异，不合理的土地利用对重庆主城九区及长寿的生态环境影响力有限；而对三峡库区腹心地带的生态环境影响较大，较低的土地利用风险压力将导致区域生态风险状态与响应值偏高。因此三峡库区腹心地带应重点予以关注，强化土地利用过程中的生态环境建设，加强环境治理与生态环境监测。研究结果可为三峡库区土地合理利用与生态保护提供参考。
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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备注/Memo

收稿日期:2012-11-10;改回日期:2013-02-24。
基金项目:国家自然基金项目（41101503）；国家社科基金重大项目（11&ZD161）
作者简介:周启刚(1976-),男,重庆市铜梁县人,博士,副教授,硕士生导师,主要研究方向:3S理论与应用、土地利用与规划、环境监测与保护。E-mail:zqg1050@126.com

更新日期/Last Update: 1900-01-01