【摘要】 针对飞来峡水库面临着较高的富营养化和重金属污染风险的状况,在2013—2017年对水库坝前水质进行监测。在水质指标变化分析的基础上,进行了富营养化和重金属污染评价。结果表明:水库2013—2017年氮磷营养盐超标,尤以总氮污染为重,富营养化程度逐渐加重,2014—2017年均存在富营养化现象;水库主要营养物质来源于面源污染;水库富营养化为磷限制型。2013—2017年水库重金属污染等级为安全级,近期内不存在重金属污染风险。更多还原

【Abstract】 In view of the high eutrophication and heavy metal pollution risk of Feilaixia Reservoir, the water quality before the reservoir dam was monitored in 2013～2017. Based on the analysis of water quality index, eutrophication and heavy metal pollution assessment are carried out. The results show that the nitrogen and phosphorus in the reservoir exceeded the standard in 2013～2017, especially the total nitrogen pollution was serious. The eutrophication degree of the reservoir has gradually increased, and eutrophication has existed from 2014 to 2017. The main nutrients in the reservoir are derived from non-point source pollution. The eutrophication of the reservoir is limited by phosphorus. The heavy metal pollution level of the reservoir in 2013～2017 is safety level, and there is no risk of heavy metal pollution in the near future.更多还原