摘要
根据岷江断面水质氨氮监测数据,对岷江流域水质氨氮状况进行分析,阐述了岷江流域氨氮空间分布情况,支流和干流达标率情况、氨氮浓度的月季变化,并选择了5个代表性断面进行了氨氮浓度变化趋势分析,提出了氨氮污染防治建议。结果表明干流达标率好于支流达标率,2~4月份氨氮浓度高些,8~9月份氨氮浓度较低。岷江流域的氨氮状况的分析为更好地保护岷江流域的水资源提供一些理论依据。
The ammonia nitrogen status in the water quality of Minjiang River Basin was analyzed based on the monitoring data of ammonia nitrogen in the water quality of Minjiang River sections. The spatial distribution of ammonia nitrogen and the rates of reaching the standard of ammonia nitrogen concentration of the sections which were in tributaries and main streams were expounded. The monthly variation of ammonia nitrogen concentration was investigated. The trend of ammonia nitrogen concentration variation of the five selected representative sections was analyzed. The suggestions of the prevention and control of ammonia nitrogen pollution were put forward. The results showed that the rate of reaching the standard in the main stream was better than that in the tributaries. The concentrations of ammonia nitrogen were higher from February to April;those were lower from August to September, relatively. The theoretical basis for the better protection of water resources in Minjiang River Basin was provided through analyzing the situation of ammonia nitrogen in Minjiang River Basin.
作者
陈雨艳
赵萍萍
相秋实
易丹
俸强
CHEN Yu-yan;ZHAO Ping-ping;XIANG Qu-shi;YI Dan;Feng Qiang(Sichuan Province Ecological & Environmental Monitoring Station, Chengdu 610091, China)
出处
《四川环境》
2019年第3期36-39,共4页
Sichuan Environment
关键词
岷江流域
氨氮
空间分布
月季变化
Minjiang River Basin
ammonia nitrogen
spatial distribution
monthly variation
