文献类型：期刊文献

中文题名：白洋淀1998—2016年水体污染物时空分布特征分析

英文题名：The Spatiotemporal Distribution of Water Pollutants from 1998 to 2016 in Baiyangdian Lake

作者：陈靓[1] 吴文卫[2] 杨明祥[1] 李春义[3]

第一作者：陈靓

机构：[1]中国水利水电科学研究院,北京100038;[2]云南省生态环境科学研究院,云南昆明650034;[3]中国林业科学研究院生态保护与修复研究所,北京100091

年份：2023

卷号：42

期号：2

起止页码：33-39

中文期刊名：环境科学导刊

外文期刊名：Environmental Science Survey

基金：“十三五”国家水体污染控制与治理科技重大专项课题:京津冀区域水环境管理大数据平台开发研究(2018ZX07111005);中国林业科学研究院基本科研业务费专项资助重点项目:白洋淀本底调查及研究(CAFYBB2020SZ006)。

语种：中文

中文关键词：白洋淀;时空分布;污染物;综合污染指数

外文关键词：Baiyangdian;spatiaotemporal distribution;pollution source;comprehensive pollution index

分类号：X52

摘要：基于白洋淀9个监测站点水质数据,采用综合污染指数法对白洋淀1998—2016年水体污物时空分布特征进行系统评价和分析。在空间上,南污染带所在的水域属于白洋淀的水质良好区。西污染为各污染带中水质最差区域,其中安新桥为严重污染水质。北污染带中大张庄和王家寨属于中度污染。在时间上,留通各污染物浓度呈现波动式逐年上升的趋势,且每年6—9月各项污染物浓度较大,溶解氧达到最低。安新桥主要污染物浓度年际波动较大且呈明显增加,年内COD超标严重,有10个月浓度均超过地表水V类标准,其余污染物浓度在非汛期高于汛期。圈头受各入淀河流影响较小,污染物浓度年际间波动不大,大部分污染物浓度呈现雨季高于旱季。栆林庄总体变化趋势不明显,与上游安新桥相比各项污染浓度均有所减小,年内NH_(3)-N波动较大,11、12月浓度相差3倍以上。可以看出,白洋淀重新蓄水后水体污染情况仍较为严重,污染物以府河入淀口为中心向东部和南部扩散,形成以安心桥为代表的局部集中污染。各污染物浓度的时间变化规律并不明显,总体呈逐年增大趋势,淀外污染源治理不容忽视。
The comprehensive pollution index method was used to systematically evaluate and analyze the temporal and spatial distribution characteristics of water pollutants based on the water quality data of 9 monitoring stations in Baiyangdian Lake from 1998 to 2016.Spatially,the southern zone had the good water quality area.The water quality of the western zone was the worst,among which the Anxinqiao section was seriously polluted.The Dazhangzhuang and Wangjiazhai sections in the northern zone were moderately polluted.In the time series,the concentration of each pollutant in Liutong station showed a fluctuating trend year by year,and it was always higher from June to September every year,when the dissolved oxygen was the lowest.The concentration of main pollutants in Anxinqiao station fluctuated greatly and increased obviously.The concentration of COD exceeded the class V standard in 10 months of a year,and the concentration of other pollutants was higher than that in non-flood season.Quantou station seemed less affected by the rivers entering the lake,and the concentration of pollutants fluctuated little from year to year,most of which in the rainy season were higher than those in the dry season.The overall change trend of Zaolinzhuang was not obvious,and the pollution concentration was lower than that of Anxinqiao upstream.NH_(3)-N fluctuated greatly in a year,and the concentration difference was more than 3 times in November and December.It could be seen that after the re-impoundment of Baiyangdian Lake,the water pollution was still serious,and the pollutants spread to the east and south via the entrance of the Fu River as the center,forming a local concentrated pollution area represented by Anxinqiao.The time change law of each pollutant was not obvious,and the overall trend was increasing,indicating that the water quality of Baiyangdian Lake was gradually deteriorating.The treatment of pollution sources from the incoming rivers outside the Baiyangdian Lake cannot be ignored.