Our work can be divided into four parts in this year. With respect to pollution assessment, an actual survey of 100 samples of water samples has been completed. The results showed that the average CTSI in Baoshan Reservoir is between mesotrophic and eutrophic (40≦CTSI≦50). The downstream agricultural and recreation area is the maximum pollution source in the Pingxi valley. The total phosphorus（TP）of Shangping streamlet is about 81.7%, and the proportion of phosphorus was reduced to 45.5% through the sink of the Shangping river weir. Therefore, the total phosphorus concentration decreased by about 34 %. The pattern results show that the total phosphorus pollution of upstream catchment area and reservoir area is 77.8% and 22.2% in Baoshan, respectively. Among them, the point source and non-point source pollution in the reservoir area is accounted for 13.0% and 9.2%. And the point source and non-point source pollution in the upstream catchment area is accounted for 5.0% and 72.8%. The results of the model calculation show that the trend between the temperature and the concentration of chlorophyll-a and total organic carbon in Baoshan Reservoir during 2016-2035, 2046-2065 and 2081-2100 years. In addition, an unmanned vehicle on water quality monitoring has been developed, which can be controlled by GPS. At present, it can monitor many parameters such as temperature, pH, conductivity, DO, turbidity, chlorophyll-a, and potassium ion. When the 4G signal is stable in the reservoir area, the unmanned vehicle monitor can effectively transfer the surface water quality of the reservoir to the lab server every 15 seconds, which can effectively master the distribution of pollution in the reservoir area. With respect to the development of green technology, our team has assisted the domestic manufacturers to develop a combined purification tank for removal of nitrogen and phosphorus with electrolysis. Due to the S1 district in Shangping catchment area and the reservoir area are the closest to catchment area of baoshan reservoir, its non-point source pollution is lower than other regions because of the transmission distance. Furthermore, in the upstream catchment area, 41.1% of the farmland is concentrated in the S1 catchment area. Therefore, we proposed that the control for non-point source pollution should be concentrated in the reservoir area and the upstream S1 district. It is estimated that total phosphorus (TP) pollution will be reduced by 8% preliminarily.

Baoshan Reservoir, Climate change, Eutrophication