梁子湖“十三五”以来水质状况分析  

Analysis of Water Quality of Liangzi Lake Since the“13th Five-Year Plan”

作　　者：叶新生 叶超然 钟书华 Ye Xinsheng;Ye Chaoran;Zhong Shuhua(Ezhou Ecological and Environmental Monitoring Center for Department of Ecology and Environment of Hubei Province,Ezhou 436000,China;Hubei University of Arts and Science,Xiangyang 441053,China)

机构地区：[1]湖北省生态环境厅鄂州生态环境监测中心,湖北鄂州436000 [2]湖北文理学院,湖北襄阳441053

出　　处：《黑龙江科学》2023年第14期32-35,共4页Heilongjiang Science

摘　　要：统计梁子湖“十三五”以来的水质监测数据,利用单因子评价法与污染指数法评价水质现状,分析主要污染物及湖区4个监测点位的水质变化规律。结果表明,梁子湖水质大部分年份稳定在Ⅲ类,主要污染物总磷年均值呈逐年上升趋势,氨氮、高锰酸盐指数、化学需氧量年均值变化不大,总磷、高锰酸盐指数、化学需氧量由于受气温影响,在夏季平均浓度相对较高,氨氮在枯水季节浓度相对较高。4个监测断面中入湖口水质最差,出湖口与梁子岛水质相对较好。The study collects the water quality monitoring data of Liangzi Lake since“13th Five-Year Plan”,evaluates the water quality status by single factor evaluation method and pollution index method,and evaluates the main pollutants and the water quality changes of the four monitoring points in the lake area.The results show that the water quality of Liangzi Lake is stable at Class III in most years;the annual average value of TP of major pollutants shows an upward trend year by year;the annual mean values of NH 3-N,COD mn and COD cr do not change much.The average concentrations of TP,COD mn and COD cr are relatively high in summer due to the influence of temperature,and NH 3-N concentration is relatively high in dry season.Among the four monitoring sections,the water quality at the mouth of the lake is the worst,and the water quality at the mouth of the lake and Liangzidao is relatively good.

关 键 词：梁子湖 “十三五” 水质类别 变化规律 

分 类 号：X524[环境科学与工程—环境工程]