Why are there so many aquatic plants near Erhai Lake?

During the slight cold solar term, severe weather such as cooling, cold wave and strong wind occurred frequently. The aquatic plants in Erhai Lake are affected by wind and waves, and the floating and dead aquatic plants increase, which is easy to pollute the water body. Dali City promptly organized manpower to pull nets to clean up and salvage dead aquatic plants in Erhai Lake area, and fully defended the water quality.