Analysis of measured water levels in different water bodies of Poyang Lake
There are different water areas of Poyang Lake,such as dish-shaped lake,reclaimed lake and riverway,which have their own unique water level variation rules.Three types of water areas were selected,namely Shahu Lake in dish-shaped lake,Pearl Lake in reclaimed lake,and Wucheng Section of Ganjiang River in riverway,and the water level changes of 2022 water level data were analyzed.The results showed that:①The water level changes of the dish-shaped lake was affected by the water level of the river,the dish-shaped lake was connected with the river in the flood periods,but not in the dry periods.②The water level changes of the reclaimed lake was not affected by the water level of the riv-er,and the flood periods was also not affected by the water level of the Poyang Lake,and the water level was controlled manually by the gate of the reclaimed lake.③The water level changes of the river bodies were influenced by the up-stream inflow and had the greatest amplitude.Therefore,the ecological environment research of the three types of habitats of Poyang Lake of dish-shaped lake,reclaimed lake and riverway,should be studied differently and accurate research on Poyang Lake needs to be carried out according to water body categories.
dish-shaped lakereclaimed lakeriverwaywater level changecorrelation analysisPoyang Lake