2012—2023年哈素海富营养程度变化分析和水华防治探讨  

Analysis of eutrophication degree changes and discussion on algaebloom control in the Ha⁃suhai from 2012 to 2023

作　　者：李国庆 云冠群 Li Guoqing;Yun Guanqun(Hohhot Branch of Inner Mongolia Environmental Monitoring Station,Hohhot Inner Mongolia 010030,China)

机构地区：[1]内蒙古自治区环境监测总站呼和浩特分站,内蒙古呼和浩特010030

出　　处：《环境与发展》2024年第1期14-19,共6页Environment & Development

摘　　要：本文通过对2012—2023年哈素海的水质特征指标(高锰酸盐指数、化学需氧量、五日生化需氧量、总氮、氨氮、总磷、叶绿素a)进行分析,结果表明:总磷、叶绿素a总体呈现增长趋势,哈素海的其余各项水质指标整体比较稳定,呈现波动状态。针对每年7—8月(丰水期)水华高发期间,对历年水华特征评价指标(高锰酸盐指数、总氮、氨氮、总磷、叶绿素a)进行富营养程度探讨。结果表明:哈素海各项水质指标整体比较稳定,水体富营养化指标为轻度富营养化,但是个别年份为中度富营养化。通过对主要影响因子的分析,为进一步提高哈素海污染防治水平以及水华防治的针对性提供数据支撑,从而实现良好的生态环境。The water quality characteristics(permanganate index,chemical oxygen demand,five-day biochemical oxygen demand,total nitrogen,ammonia nitrogen,total phosphorus and chlorophyll a)of the 2023 Hasuhai from 2012 to 2023 were analyzed in the paper.The results showed that total phosphorus and chlorophyll a were increasing,and the other water quality indexes of Hasuhai were stable and fluctuating.The degree of eutrophication was evaluated by the indicators of algal blooms characteristics(permanganate index,total nitrogen,ammonia nitrogen,total phosphorus and chlorophyll a)during july-august(flood season).The results showed that the water quality indexes of Hasuhai were stable in general,and the algal bloom indexes were slight eutrophication,but moderate eutrophication in some years.The analysis of the main influencing factors would help to improved the pertinence of Pollution Control and water bloom control in Hasuhai and maintain a good ecological environment.

关 键 词：哈素海 水质分析 富营养化 水华防治 

分 类 号：X832[环境科学与工程—环境工程]