摘要
2017年至2018年春季(5月),夏季(8月)对汾河流域(太原至平遥段)浮游动物和水质进行了调查,对浮游动物种类组成,密度,生物量和水体理化因子进行了分析,结果显示汾河流域(太原至平遥段)浮游动物共4门30属39种。原生动物18种,占总数的46.2%,轮虫16种,占总数的41.0%,枝角类4种,占总数的10.3%,桡足类1种,占总数的2.6%。汾河流域(太原至平遥段)丰度主体为原生动物和轮虫,从兰村到迎泽公园这段水质污染小,从小店桥直至汾河三坝,水质污染严重,主要污染物是总氮,氨氮,总磷等,通过综合营养状态指数对汾河流域水质进行富营养化评价,兰村属于中营养水体。汾河湿地公园和迎泽公园由轻度富营养水体向中营养过渡。小店桥和车南安桥除2018年5月份水体处于富营养化水体,其余属重度富营养化水体,汾河二垻属富营养化水体,汾河三坝2018年5月份水体为轻度富营养化水体,其余属富营养化水体。
In spring from 2017 to 2018(May),in summer(August),zooplankton and water quality were investigated in the Fenhe River basin(Taiyuan-Pingyao section),and the composition,density,biomass and physicochemical factors of zooplankton were analyzed. The results showed that there were 39 species of zooplankton in the Fenhe River basin (from Taiyuan to Pingyao). There are 18 species of protozoa,accounting for 46.2 % of the total,16 species of rotifers, accounting for 41.0 % of the total,4 species of branches,accounting for 10.3 % of the total,and 1 species of copepods, accounting for 2.6 % of the total. The main body of the abundance of the Fenhe River Basin(from Taiyuan to Pingyao Section)is protozoa and rotifers. The water pollution from Lancun to Yingze Park is small,and the water pollution from Xiaodian Bridge to Fenhe Sanba is serious. The main pollutants are total nitrogen,ammonia nitrogen,total phosphorus, etc.. By means of the comprehensive nutrition state index to conduct the Fenhe River basin water quality eutrophication evaluation,Lancun water body belongs to the middle nutrition water body. The water body of Fenhe Wetland Park and Yingze Park is transformed from mild eutrophic to middle nutrition. The water body of Xiaodian Bridge and the Che Nan’an Bridge is eutrophication in May 18th,and the rest is severely eutrophication. The water body of the second Dam of the Fenhe River and that of the Third Dam in May 18th is light eutrophication,the rest is eutrophication.
出处
《山西水利科技》
2019年第3期87-92,共6页
Shanxi Hydrotechnics
基金
山西水利厅科学技术项目(编号:201637)
关键词
汾河流域
富营养化
浮游动物
密度
生物量
水质分析
Fenhe River Basin
eutrophication
zooplankton
density
biomass
water quality analysis
