摘要
1986—2016年30年间红枫湖水体环境质量发生了巨大变化,库区水体由劣Ⅴ类提升至2015年的总体Ⅲ类和局部Ⅱ类。2016年与1996年相比:红枫湖流域总氮输入量增加了1613. 84t/a,氨氮增加了376. 85 t/a,总磷输入量降低了2242. 44 t/a;工业污染物输入量显著降低,工业总氮、总磷和氨氮输入分别减少2676. 94 t/a、293. 44 t/a和1893. 84t/a;大气沉降输入总氮、总磷入库分别增加5. 86倍和3. 47倍。必须加强红枫湖流域环境质量综合监测,研究内源营养物质的释放规律和水体生物污染潜在威胁,为防止红枫湖水体发生重大污染事件提供技术支撑。
From 1986 to 2016,significant changes in terms of the water quality of Hongfenghu Lake had taken place,with overall water quality improved from inferior ClassⅤin 1986 to ClassⅢin general and ClassⅡfor specific water area in 2015.As compared the data between the year 2016 and 1996,we found that the input of total nitrogen and ammonia nitrogen to the lake had increased by 1613.84t/a and 376.85 t/a respectively;while total phosphorus input had decreased by 2242.44 t/a.The significant decrease of industrial pollutants input was witnessed,with total industrial nitrogen,total phosphorus and ammonia nitrogen inputs decreased by 2676.94 t/a,293.44 t/a and 1893.84t/a respectively.Among those increased,total nitrogen and total phosphorus inputs from source of atmospheric deposition had increased by 5.86 times and 3.47 times respectively.Compre-hensive monitoring of environmental quality in the Hongfenghu Lake basin must be strengthened to study the release law of endogenous nutrients and potential risks of aquatic biological pollution,so as to provide technical support for preventing major pollution events in the lake.
作者
孟凡丽
肖劲松
杨梅
商正松
王立志
Meng Fanli;Xiao Jinsong;Yang Mei;Shang Zhengsong;Wang Lizhi(Guizhou Institute of of Environmental Science and Design,Guiyang 550081;Guizhou Key Laboratory of Water Pollution Control and Resource Reuse,Guiyang 550081;Shandong Provincial Key Laboratory of Soil Conservation and Environmental Protection, School of Resources and Environment,Linyi University,Linyi 276005)
出处
《环保科技》
2018年第5期1-5,10,共6页
Environmental Protection and Technology
基金
国家自然科学基金资助项目(41303061)
贵州省社会发展科技攻关项目(黔科合SY[2013]3138号)
贵州省环保厅科技项目(黔环科[2015]4号)
贵州省环保厅科技项目(黔环科[2012]3号)
