长江流域资源与环境 >> 2011, Vol. 20 >> Issue (2): 161-.

• 生态环境 • 上一篇    下一篇

南水北调中线丹江口库区生态环境质量评价

王立辉,黄进良,杜耘   

  1. (1.中国科学院测量与地球物理研究所|湖北 武汉 430077;2.中国科学院研究生院|北京 100049)
  • 出版日期:2011-02-20

ECO-ENVIRONMENTAL EVALUATION OF MIDDLE ROUTEOF THE SOUTHTONORTH WATER TRANSFER PROJECT

WANG Lihui1,2| HUANG Jinliang1| DU Yun1   

  1. (1. Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077|China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China)
  • Online:2011-02-20

摘要:

以南水北调中线工程的主要淹没区和水源地——丹江口库区为研究区域,以区域生态环境质量评价理论为基础,以遥感影像为主要数据源,选取水热条件、地形地貌、土地利用和土壤侵蚀等环境评价因子,建立生态环境质量综合评价模型,对丹江口库区的生态环境现状进行定量评价。结果表明:库区的自然生态环境现状整体一般偏好,达到良好标准的占43.24%,较差及以下的面积达到区域总面积的1006%。较好地段主要集中于河谷平坝,500~1 000 m的中海拔地区生态环境质量差异较大,生态脆弱度高。库区中东部地区相对较好,北部和西部相对较差。需要采取积极的生态环境保护措施,以保障南水北调中线工程的安全运营和效益的充分发挥。

Abstract:

The investigation object of this paper is the Danjiangkou Reservoir Area,which is the main submerged area and water source area of Middle Route of the SouthtoNorth Water Transfer Project.Using remote sensing as the main data source,aiming at the main ecological problems in the region,choosing precipitation and heat,land use/land cover,topography,soil erosion as assessing factors,we established comprehensive assessment model for ecological environmental quality and studied the spatial distribution of assessed results.The result showed that the quality of the Danjiangkou Reservoir Area was ordinary and slightly good as a whole,4324% area reaching good level,1006% area under relatively poor level.The condition of ecological evaluation showed vertical distribution.Good level area focused on the valley.The area between 500~1 000 m showed different environmetal quality and were vulnerable to human activities interference.Thus,more measures should be taken and adjusted to local conditions in order to make ecological environment better.

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