Ecological Risk Assessment for Drinking Water Source Land of Shitoukoumen Reservoir

SUN Li-qiang; TIAN Wei; YU Mu-qing; MA Guang-qing; GU Bin; XU Ning

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Ecological Risk Assessment for Drinking Water Source Land of Shitoukoumen Reservoir

- Ecological Risk Assessment for Drinking Water Source Land of Shitoukoumen Reservoir
- Bulletin of Soiland Water Conservation Vol. 30, Issue 1, Pages: 211-214(2011)
- 作者机构：
  
  1. 中国科学院东北地理与农业生态研究所,吉林,长春,130012
  2. 中国科学院研究生院,北京,100049
- 作者简介：
- 基金信息：
- DOI：
  CLC： S151
- Published：2011
- 稿件说明：
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SUN Li-qiang, TIAN Wei, YU Mu-qing, et al. Ecological Risk Assessment for Drinking Water Source Land of Shitoukoumen Reservoir[J]. Bulletin of Soiland Water Conservation, 2011, 30(1): 211-214.
DOI：

SUN Li-qiang, TIAN Wei, YU Mu-qing, et al. Ecological Risk Assessment for Drinking Water Source Land of Shitoukoumen Reservoir[J]. Bulletin of Soiland Water Conservation, 2011, 30(1): 211-214. DOI：

摘要

以石头口门水库水源地为研究区域

将生态风险评价引入水库水源地评价中

从自然条件和人为干扰状况出发

根据生态风险评价框架和层次分析思想建立石头口门水库水源地生态风险评价指标体系.在研究区历史资料考证和野外考察的基础上

筛选出点源污染、面源污染及干旱作为风险源.结果表明

石头口门水库水源地的生态风险分布具有明显的空间差异性.研究还发现

对石头口门水库水源地生态风险值贡献较大的因子为N元素和P元素

二者的权重分别为0.224 7和0.195 4.研究结果可为环境管理和生态风险决策提供数量化的理论依据和数据支持.

Abstract

By developing an evaluation index system and applying of analytic hierarchy process(AHP)comprehensive evaluation

an ecological risk assess-ment of the ecosystems in the Shitoukoumen Reservoir basin was carried out with considerations of natural conditions and human disturbance of the study area.Based on historical documents and field survey

three factors including point source pollution

non-point source pollution and drought were selected as risk sources.The results show that ecological risks of the basin displayed substantial spatial variability.The key ecological risk sources were total nitrogen and phosphorus in the water

with weight coefficients of 0.2247and0.1945

respectively.The results of this study provided quantitatively a theoretic basis and data support for the environmental management and ecological risk decisionmaking.

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