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| 官厅水库近三十年的水质演变时序特征 | |
| 引用本文： | 梁涛,王浩,丁士明,薛金凤,蔡春霞,张秀梅.官厅水库近三十年的水质演变时序特征[J].地理科学进展,2003,22(1):38-44. |
| 作者姓名： | 梁涛 王浩 丁士明 薛金凤 蔡春霞 张秀梅 |
| 作者单位： | 1. 中国科学院地理科学与资源研究所,北京,100101 2. 北京师范大学环境科学研究所,北京,100875 |
| 基金项目： | 国家重点基础研究发展规划项目(NKBRSF-G1999045710)，中国科学院地理科学与资源研究所所长基金项目(SJIOG-A00-03) |
| 摘 要： | 基于过去的研究成果,综述了官厅水库近三十年来的水质演变过程,分阶段探讨了官厅水库水污染的来源和特征。与此同时,从污染物的角度探讨了官厅水库典型污染物的时空变化规律。研究结果表明,官厅水库的水质演变先后经历了四个阶段,依次为1972～1975年以有机毒物和重金属污染为特征的水体污染,1981～1992年以有机污染为主体的水体再污染,1992～1995年增加了大肠杆菌污染的水体复合污染,以及1996年至今以氮磷污染为明显特征的水体有机复合污染。从主要污染物的时间变化上看,库区COD和主要重金属含量均在缓慢上升,挥发酚的含量呈现波动趋势,氨氮和总磷的含量持续大幅度上升。污染物在库区的空间分布规律相似,入库处污染物浓度明显高于出库处的污染物浓度。 |
| 关 键 词： | 官厅水库 水质污染 演变过程 |
| 文章编号： | 1007-6301(2003)01-0038-07 |
| 收稿时间： | 2002-10-01 |
| 修稿时间： | 2002年10月1日 |
An Evolution of Water Quality in Guanting Reservoir During the Past Three Decades |
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| Institution: | 1. Institute of geographic sciences and natural resources research,CAS, Beijing 100101; 2. Institute of Environmental Science, Beijing Normal University, Beijing 100875 |
| Abstract: | As the first large scale reservoir, Guanting Reservoir plays a key role on water supply for BeijingThe reservoir kept healthy in the first decade and water quality has deteriorated since 1972 graduallyIn the following three decades, the water body undertook series pollutions, and dropped out from the source region of drinking water in 1997 The evolution of water quality in Guanting Reservoir in the past three decades was summarized based on the previous studiesSources and characteristics of the water pollution in Guanting Reservoir were discussed by stagesAt the same time, variations of main pollutants were also discussed The results show that the evolution process of water quality in Guanting Reservoir could be roughly divided into four stagesThe feature of first stage was organic toxicants and heavy metals pollution during 1972～1975The following stage was from 1981 to 1992,in which organic pollution played a main roleThe water pollution in third stage was a kind of complex pollution, which added bacteria pollutants during 1992～1995From 1996 till now, nitrogen and phosphorous pollution were the key features in Guanting ReservoirContents of COD and main heavy metals increased slowly during the past three decades, while contents of phenol varied In addition, contents of nitrogen and phosphorous increased steadily and significantly. |
| Keywords: | Guanting reservoir Water pollution Evolution of water quality |
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