【摘要】 目前关于浮萍消减污染物、治理富营养化水体的研究有很多，但实验场所基本局限在小型可控容器内或部分室外局部静止水体，缺乏较大尺度的应用实例。通过Sentinel-2影像对京杭运河徐州主城区段持续监测，观测到夏季水面上有浮萍爆发生长现象，人工干预打捞后，次年冬季水体中N,P营养元素同比显著下降，这证明了人工打捞浮萍确实达到了削减水体中N,P的效果。未来相关研究可以从浮萍育种和综合利用方面开展，发挥浮萍在较大范围流动水体富营养化治理中的潜力。更多还原

【Abstract】 At present, there are many researches on duckweed pollution reduction and eutrophication water treatment, but the experimental sites are mainly confined in small controllable containers or some outdoor local static water, and there is a lack of large-scale application examples. The sentinel-2 image was used to continuously monitor the main city section of Xuzhou of Beijing-Hangzhou Canal, and the phenomenon of duckweed eruption and growth was observed in summer. After artificial salvage, the nitrogen and phosphorus nutrients in the water decreased significantly in winter of the next winter,which proved that artificial salvage of duckweed really achieved the effect of reducing nitrogen and phosphorus in the water.In the future, related researches can be carried out from the aspects of duckweed breeding and comprehensive utilization,and the potential of duckweed in the treatment of eutrophication in a large range of floating water bodies can be brought into full play.更多还原