The site is located in the southern part of the main body of Poyang Lake, the largest freshwater lake in China. The existing Poyanghu Ramsar Site (Site no. 550) is found nearby within Poyang Lake. One of the main features of this new site is the large inland delta complex formed by the northern, middle and southern channels of the Ganjiang River, which flow into the Lake and on from there into the Yangtze River. Significant water level fluctuations occur within the wetland between the wet and dry seasons, with the total surface water coverage varying between under 40% and almost 99% of the wetland. When the water level drops, a variety of other wetland features emerge including rivers, lakes, meadows and mudflats. This creates important habitats for waterbirds as a stopover and wintering place, with between 20,000 and 70,000 migratory birds wintering in the site annually. These include a number of threatened species including the Siberian crane (Grus leucogeranus), and more than 1% of the biogeographical populations of 21 species.