Water Quality Evaluation and Eutrophication Trend Analysis of Puzhehei Lake

By collecting the monitoring data of Puzhehei Lake from 2005 to 2020, this paper analyzed and evaluated the water quality status of the lake and the water quality changes for 16 consecutive years. The results showed that the water quality of the lake was dominated by eutrophic organic pollution, the change of nutritional state index indicated a significant upward trend, and the water quality was gradually deteriorating.