Is Poyang Lake in the middle or lower reaches of the Yangtze River?

Poyang Lake is located in the middle and lower reaches of the Yangtze River. Poyang Lake is located in the north of Jiangxi Province, near Hubei Province, where the Ganjiang River, the landmark river of Jiangxi Province, meets. Hunan and Jiangxi are the abbreviations of Hunan and Jiangxi respectively. Poyang Lake was called Li Peng Lake in ancient times, and Wu Qi, a famous soldier in the Warring States, called it "the country of three seedlings". It is located on the left side of Dongting Lake and Peng Li, and refers to the area between Dongting Lake and Poyang Lake. Since before Emperor Yang Di, this great lake has been called Li Peng Lake. Around the time of Yang Di, Li Peng Lake had another name, namely Poyang Lake, which was named after the nearby Poyang Lake. In addition, Poyang Lake is sometimes called Gongting Lake. Affected by the weather, the area of Poyang Lake is sometimes large and sometimes small. When the area is small, you can see the bottom of the lake, where cattle and sheep can play and eat grass. It is generally believed that Poyang Lake covers an area of about 3 100 square kilometers when it is large, and only 500 square kilometers when it is small, which is several times different. This situation exists not only now, but also in ancient times.