【摘要】 化感物质因其二次污染小且生态友好而具有很强的实际应用价值，本研究采用青蒿素缓释化感物质进行富营养化湖泊中蓝藻的原位治理。结果显示，青蒿素缓释化感物质在实际水体中具有长期的蓝藻抑制效果，叶绿素a、藻密度和蓝藻占比均保持较低水平。同时，青蒿素缓释化感物质的投加对水环境仅产生一定的初期影响，pH、总磷（TP）、总氮（TN）和总有机碳（TOC）等仅在投加的1～5 d逐渐升高，而后迅速降低。研究证实了青蒿素缓释化感物质的应用潜力和较小的环境影响。更多还原

【Abstract】 Allelochemicals are of significant practical value due to their minimal secondary pollution and ecological friendliness. In this study, artemisinin sustained-release allelochemicals were used for in-situ control of cyanobacteria in eutrophic lakes. The results showed that artemisinin sustained-release allelochemicals exhibited long-term cyanobacterial inhibition in natural water bodies, maintaining low levels of chlorophyll-a, algal density,and cyanobacteria proportion. Meanwhile, the application of these allelochemicals had only a limited initial impact on the water environment, with pH, total phosphorus(TP), total nitrogen(TN), and total organic carbon(TOC)gradually increasing over the first 1-5 days, followed by a rapid decrease. The study confirmed the application potential of artemisinin sustained-release allelochemicals and their minimal environmental impact.更多还原