摘要
慈溪市饮用水源地全部来自本地水库.水库水量主要靠地表径流补充,已不能满足社会用水需求.确保水库环境安全显得尤为重要.评价了该市饮用水源地水质安全状况及其变化趋势,结果表明,所有水源地水质年平均值处于安全水平,但一些指标(主要是有机污染物和大肠菌群)在个别时段超标,富营养化问题较为突出.近5年水质总体上无明显变化,个别水源地富营养化程度有所上升.在污染源调查的基础上,提出了水源地污染治理和生态建设对策.
All of DW in Cixi County is from local ten reservoirs. The water resource in all reservoirs, which mainly from local rainfall, can＇ t meet the social needs. It becomes more and more important to guarantee the water quality safety （WQS） of DW. WQS status of each DW in 2001 - 2004 is evaluated. The results show that all DW water quality belongs to safety level as a whole, but some index（such as organic pollutants and coliform） exceed safety criteria sometimes. The main problem is eutrophication. There is no distinct change about the water quality of each DW in general, except that eutrophication degree is increasing in several reservoirs in 2001 - 2004. Based on the investigation of pollutant sources, the strategies of pollution treatment and ecological restoration for DW protection are proposaled.
出处
《复旦学报（自然科学版）》
CAS
CSCD
北大核心
2008年第4期509-514,共6页
Journal of Fudan University：Natural Science
基金
国家社会科学基金重大资助项目(06&ZD024)
关键词
水源地
水质安全
评价
对策
慈溪市
drinking waterhead
water quality safety
evaluation
countermeasures
Gixi County
