摘要
大伙房水库是辽宁省重要的水源地之一,2019年10月(枯水期)对大伙房水库及其3条入库支流的13个样点的水质指标和水生生物群落结构进行了调查。结果显示:大伙房水库及其入库支流超过目标标准的主要项目是总氮、化学需氧量和总磷;共检出68种浮游植物、13种浮游动物和36种底栖动物;水体水质总体处于轻污染至中污染状态;大伙房水库污染物已发生了一定的沉积,富营养化水平高于入库支流;典范对应排序分析表明,影响水生生物群落结构的主要水质指标是溶解氧、高锰酸盐指数和氨氮。为避免大伙房水库水体过快富营养化,有必要控制外源营养盐和有机物的输入。
Dahuofang Reservoir is one of the most important water sources in Liaoning Province.In October 2019(drought period),the water quality indexes and aquatic community structure of 13 sampling points in Dahuofang Reservoir and its 3 tributaries were investigated.Results showed that the water quality indexes,which exceeded the target standards,were total nitrogen,chemical oxygen demand and total phosphorus.68 species of phytoplankton,13 species of zooplankton and 36 species of benthic animals were identified.The water quality was at light-medium pollution state,in general.The pollutants in Dahuofang Reservoir was sunk,leading to eutrophication level higher than the tributraies.Canonical correspondence analysis revealed that the dissolved oxygen,permanganate index and ammonia nitrogen were the key water quality indexes that affected the aquatic community structure.It was necessary to control exogenous nutrients and organic matter input so as to lower the process of eutrophication.
作者
陈兰
张洛红
黄道建
黄楚珊
冯雁辉
安坤
王留锁
于云江
张丽娟
胡国成
CHEN Lan;ZHANG Luohong;HUANG Daojian;HUANG Chushan;FENG Yanhui;AN Kun;WANG Liusuo;YU Yunjiang;ZHANG Lijuan;HU Guocheng(College of Environmental and Chemical Engineering,Xi’an Polytechnic University,Xi’an Shaanxi 710048;South China Institute of Environmental Sciences,Ministry of Ecology and Environment,Guangzhou Guangdong 510535;State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment,Guangzhou Guangdong 510535;Ecological Environmental Protection Technology Center of Liaoning Province,Shenyang Liaoning 110161)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2021年第7期834-838,857,共6页
Environmental Pollution & Control
基金
水体污染控制与治理科技重大专项(No.2018ZX07601-002)
广东省水利科技创新项目(No.2016-01)。
关键词
水质现状
水生生物
群落结构
大伙房水库
water quality status
aquatic organisms
community structure
Dahuofang Reservoir
