摘要
污染溯源是环境治理的基础。为厘清太湖主要入湖河流-社渎港的污染来源情况,利用遥感监测同步性较好的优点,开展污染溯源监测研究。结果表明:社渎港沿线污染源集中分布特征明显;邻近社渎港的鱼塘水体中的TN、TP、NH 3—N和COD Mn浓度均显著高于社渎港;沿河道水流方向,人类活动较强的工厂区和居民区河段水体主要水质指标均显著高于农田区河段,凸显人类生产、生活对河道水质的潜在影响。遥感解译结果还显示,太湖西岸分布大量鱼塘,虽然监测期间未发现鱼塘排水现象,但是鱼塘水体具有较高的污染指标浓度,一旦进入河道水体,势必造成河道水体水质下降。
Pollution source tracing is the basis for the protection and management of the environment.Taking the advantage of remote sensing for its simultaneous monitoring,we traced the pollution source in Shedugang River,a major inflow river of Taihu Lake.It is shown that the pollution sources in Shedugang River are concentrated to certain areas.Transversely,the concentration of TN,TP,NH 3—N and COD Mn of the neighboring fish ponds are obviously higher than that in Shedugang River.Along the river channel,the water quality indices in the water bodies of industrial and residential areas,which are strongly affected by human activities,are remarkably higher than those of agricultural areas,showing the potential effect of human activities on the water quality of the river channel.According to the remote sensing results,there is a large number of fish ponds scattered along the west coast of Taihu Lake.Limited by the monitoring time,we did not find the discharge of waste water from fish ponds to the river;however,highly polluted fish pond water is a potential pollution source once discharged into river.
作者
吕学研
张甦
张咏
尤佳艺
向一铭
郭仁庆
董圆媛
LU Xueyan;ZHANG Su;ZHANG Yong;YOU Jiayi;XIANG Yiming;GUO Renqing;DONG Yuanyuan(Jiangsu Environmental Monitoring,Nanjing 210019,China)
出处
《水资源与水工程学报》
CSCD
北大核心
2021年第3期18-23,共6页
Journal of Water Resources and Water Engineering
基金
江苏省太湖水环境综合治理科研课题(TH2019401)。
关键词
水体污染
污染溯源
多光谱遥感
无人机
社渎港
太湖
water pollution
pollution source tracing
multi-spectral remote sensing
unmanned aerial vehicle(UAV)
Shedugang River
Taihu Lake
