China News Service, Nanchang, August 6th (Reporter Liu Zhankun) At 2 o'clock on August 6th, the water level of Xingzi Station, the representative station of Poyang Lake, China's largest freshwater lake, retreated to 11.99 meters, the lowest water level in the same period on record, which marked the advance of Poyang Lake. Entering a dry season, 2022 will become the earliest year to enter a dry season since records began in 1951.
The reporter learned from the Jiangxi Provincial Hydrological Monitoring Center on the same day that on June 23 this year, the Poyang Lake Xingzi Station had the highest annual water level of 19.43 meters, which was 2.81 meters higher than the average for the same period of the year; Due to the common influence of less, the water level of Poyang Lake dropped rapidly, and the water level began to change from high to low on July 9.
Since June 23, the water level of Poyang Lake Xingzi Station has dropped by 7.44 meters within 44 days, with an average daily decline of 0.17 meters and a maximum daily decline of 0.31 meters (August 4).
In the dry season of Poyang Lake, the original misty lake surface has disappeared, and the riverbed has become a tidal flat or a grassy island.
(Data map) Photo by Liu Zhankun
The data shows that at 2:00 on August 6, the water level of Poyang Lake Xingzi Station retreated to 11.99 meters, which was the earliest year to enter the dry season since records began in 1951. The average appearance time of 1951-2002 is 100 days earlier, which is 69 days earlier than the average appearance time of 2003-2021.
According to meteorological forecasts, in the next ten days, Jiangxi Province will still be dominated by high temperature and low rainfall. In addition, the inflow of water from the Yangtze River Basin is normally low, and the water level of Poyang Lake will continue to decline.
The Jiangxi hydrological department suggested paying attention to the adverse impact of the rapid drop in the water level of Poyang Lake on the production and living ecology of the lake area, and doing a good job in water management and drought resistance and water conservation.