| 英文摘要 |
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.
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