Abstract
In order to explore the spatial distribution characteristics of nutrients in the dianchi Lakeside and its influence on the eutrophication of dianchi Lake water, 21 sampling points were set up in the dianchi Lakeside to investigate the water quality, and the water samples of Dianchi Lake were collected, analyzed and measured TN, TP, CODCr, Chla and SS. The results showed that the spatial distribution of TN, TP, CODCr, Chla and SS concentrations in the lakeside of Dianchi differed. The spatial distribution of chlorophyll a showed a trend of high in the north and low in the south, and high in the west and low in the east. Chla was highly significantly correlated with TN in the northern and eastern water bodies in the lakeside of Dianchi, and TN had strong variability. In the south and west, TN is significantly correlated with CODCr and TP, while in the south, chlorophyll a and nutrients have less spatial variability and the risk of pollution is relatively small. The scientific sub-regional pollution prevention and control plan for the lakeside of Dianchi is of great significance for the water quality restoration of the lakeside.
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