The key reservoirs in the middle area of Taiwan in this project include Techi Reservoir, Wushoh Reservoir, Sun Moon Lake Reservoir, Hushan Reservoir, Renyitan Reservoir, Lantan Reservoir and Tsengwen Reservoir. The team has sampled 38 points in Techi Reservoir, 36 points in Wushoh Reservoir, 17 points in Tsengwen Reservoir and 60 points in Renyitan Reservoir to accomplish 151 points of water samples totally and related water quality analysis. In addition, this project summarized the results of total phosphorus pollution loading of seven major reservoirs, hot spot analysis and proposed loading reduction strategies, and finally held a symposium to report the outcomes. 　　This project has developed an Automatic Water Quality Monitoring Boat that can quickly and widely scan the surface of reservoir and find out the hot spots of non-point source by the relative pollution concentration data. The automatic monitoring and sampling functions are designed in this technology, and sampling can be continued even in abnormal situations. 　　This project has conducted the big data analysis of the reservoir eutrophication from 2010 to 2019, collected cases of reservoir water quality improvement and nutrient level increase from 2017 to 2019, analyzed the correlation between reservoir water quality parameters and eutrophication, and proposed the strategies and implementation measures for water quality improvement of eutrophication in Taiwan reservoirs. Besides, this project also provided the National Reservoir Water Quality Research and Analysis Report in 2019 and the Reservoir Water Quality Improvement Strategy Report in the Kinmen Area. 　　This project has held the three working meetings, attended eight related meetings, provided relevant opinions and submitted articles to international seminars.

Non-point source pollution, Automatic monitoring ship, Eutrophication