Acta Scientiarum Naturalium Universitatis Pekinensis

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Soil Erosion Change in the Water Source Region of the Middle-Route of the South-to-North Water Transfer Project (SNWTP)

LIU Yuanshu1,4, LIU Yu2, ZENG Yuan2, WANG Honglei3   

  1. 1. College of Economic and Management, Wuhan University, Wuhan 430079; 2. Key Laboratory of Digital Earth Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094; 3. College of Environmental Sciences and Engineering, Peking University, Beijing 100871; 4. Research Centre for Policy and Technology of Office for South-to-North Water Transfer Commission of State Council, Beijing 100053;
  • Received:2013-11-14 Online:2015-01-20 Published:2015-01-20



  1. 1. 武汉大学经济与管理学院, 武汉 430079; 2. 中国科学院遥感与数字地球研究所数字地球重点实验室, 北京 100094; 3. 北京大学环境科学与工程学院, 北京 100871; 4. 国务院南水北调工程建设委员会办公室政策及技术研究中心, 北京 100053;

Abstract: In order to protect the regional ecological environment of water source region of the South-to-North Water Transfer Project (SNWTP) and maintain the water quality security of Danjiangkou Reservoir, based on remote sensing and geographic information system, this study used Landsat TM and HJ-1A/B as data source to analyze the dynamic tendency of soil erosion in 2000 and 2011 in the water supplying area. The findings are as follows: in the past 12 years, gross area of soil erosion has decreased 234.72×104hm2 (42.15%), 46 in all 47 counties shows a trend of decrease, from 13.23% to 75.92% concretely; soil erosion intensity is mainly light, moderate, strong, the areas of light, moderate, strong, ultra strong, intense have dropped 24.81%, 50.34%, 47.41%, 48.24%, and 49.15%, respectively. The finding demonstrates that soil erosion problem in this area has been improved considerably, and remarkable achievements have been made in ecological construction and environmental protection.

Key words: remote sensing, water and soil erosion, South-to-North Water Transfer Project (SNWTP)

摘要: 为保护区域的生态环境和维护丹江口水质安全, 基于遥感和地理信息系统技术, 以Landsat TM和HJ-1A/B遥感影像和DEM高程数据为数据源, 对南水北调中线水源区2000 年和2011年的土壤侵蚀进行评价, 分析土壤侵蚀的变化趋势。结果表明: 12年来, 研究区土壤侵蚀总面积下降了234.72×104hm2 (下降42.15%), 47个县中有46个土壤侵蚀面积均呈减少趋势, 降幅为13.23%~75.92%; 土壤侵蚀强度构成以轻度、中度和强烈侵蚀为主, 轻度、中度、强烈、极强烈、剧烈的侵蚀面积分别下降了24.81%, 50.34%, 47.41%, 48.24%和49.15%。研究结果说明南水北调中线水源区土壤侵蚀有较大改善, 生态环境保护与建设取得显著成效。

关键词: 遥感, 土壤侵蚀, 南水北调中线水源区

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