摘要
基于达里诺尔湖17个采样点的水生态环境现场调研获取的一手实测资料,对湖区水环境质量、污染物空间分布特征及关键驱动因子、污染来源进行探讨。结果表明:(1)达里诺尔湖水质较差,17个采样点位均为《地表水环境质量标准》(GB 3838—2002)中劣Ⅴ类水质,COD、氨氮、TN、TP超标率为100%,且分别超过Ⅰ类水质标准的7.99、23.47、38.90、53.00倍。(2)水质污染的主要驱动因子为氨氮、TN、TP、总溶解性磷(DTP)、溶解性有机碳(DOC),营养盐是达里诺尔湖流域主要的污染指标(累计解释率为62.220%)。(3)达里诺尔湖西部水质相对于东部水质较差,氮污染主要集中于西岸,磷污染主要分布在西南岸,湖中心区域氮、磷污染状况较轻。
Based on the first-hand measured data from 17 sampling sites of the Dalinuoer Lake,the water environmental quality,spatial distribution characteristics of pollutants,key driving factors and pollution sources in the lake area were studied.The results showed that:(1)the deterioration of water environment in the Dalinuoer Lake was serious,and all the 17 monitoring sites were of ClassⅤof“Environmental quality standards for surface water”(GB 3838-2002).The water quality was poor,COD,ammonia nitrogen,TN,TP were 7.99 times,23.47 times,38.90 times and 53.00 times of classⅠrespectively,the overshoot rates were 100%.(2)Ammonia nitrogen,TN,TP,DTP,DOC were the main driving factors of water pollution in Dalinuoer Lake,and nutrient was the main pollution index(the cumulative interpretation rate was 62.220%).(3)The water quality in the east of the Dalinuoer Lake was better than that in the west.The nitrogen pollution was mainly concentrated in the west bank,and the phosphorus pollution was mainly distributed in the southwest bank.The center of lake was slightly polluted.
作者
王璐
赵茜
王晓
陈焰
马淑芹
薛婕
孙伟
夏瑞
WANG Lu;ZHAO Qian;WANG Xiao;CHEN Yan;MA Shuqin;XUE Jie;SUN Wei;XIA Rui(Chinese Research Academy of Environmental Sciences,Beijing 100012;College of Water Science,Beijing Normal University,Beijing 100875;College of Environmental Science and Engineering,Ocean University of China,Qingdao Shandong 266100)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2021年第5期601-605,共5页
Environmental Pollution & Control
基金
国家重点研发计划项目(No.2019YFC0408902)。
关键词
达里诺尔湖
水质污染
空间分布
来源解析
Dalinuoer Lake
water pollution
spatial distribution
source analysis
