[Perspective Society · Ecological Supervision] my country's largest freshwater lake, the earliest record of entering the extremely dry period

my country's largest freshwater lake, the earliest record of entering the extremely dry period

According to reports, Poyang Lake, the largest freshwater lake in China, entered the polar dry water period in advance on September 6. In 2022, it was the fastest year since the record of the dead water level.

Jiujiang, Jiangxi, in the waters of Duobao Township, Duchang County, Poyang Lake, severe drought leads to continued "shrinking" in the lake area, and the Shiqiao of the Ming Dynasty at the bottom of the water showed "the true face of Lushan." Picture source: China News Network

The media learned from the Jiangxi Provincial Hydrological Monitoring Center that since August, it has been affected by the continuous high temperature and rain and rain and the water of the Yangtze River. At 8 o'clock on September 6, the water level of Xingzi Station of Poyang Lake was retreated to 7.99 meters. It was the lowest water level in history since 1951. Poyang Lake entered the extremely dry water period. After the following), after the low water period (below 10 meters), Poyang Lake once again refreshed into the earliest record of the extremely dry water period. Compared with the earliest year (November 30, 2019), it was 85 days in advance, and the average time since the record was 115 days in advance.

The Jiangxi Provincial Hydrological Monitoring Center stated that from 12 meters to 8 meters, it only took 31 days. History was rare. Poyang Lake average 0.13 meters daily, with a maximum of 0.33 meters per day. The fastest year of dry water.

The Shiqiao of the Ming Dynasty with "Lushan True Face" showed 2930 meters long and more than 1,100 pores.

According to meteorological predictions, Jiangxi will still focus on high temperature and rainy weather in the next week. In addition, the water level in Poyang Lake will continue to decline.

The Jiangxi Water Conservancy Department reminded all departments to do a good job in water lifting and water preservation in accordance with relevant drought resistance plans to ensure the adverse effects of living water and agricultural irrigation in the lake area, and preventing the rapid decline in Poyang Lake's water level on the lake areas and surroundings.

Entering Poyang Lake in the dry period, the navigation environment becomes complicated

As Poyang Lake officially entered the extremely dry period, the number of shallow and narrow sections increased, and the navigation environment became complicated. In order to maintain the normal navigation order, Jiangxi Jiujiang Port Shipping Administration implemented water traffic control on ships entering Poyang Lake from the Yangtze River to ensure the safety of ship navigation and the safety of cross -river bridges.

Picture source: CCTV News

At the Yangtze River in Poyang Lake in Hukou County, Jiujiang City, the wide Poyang Lake in the past became a river, and large yellow beaches were exposed around the channel. Hukou County Port and Maritime Aviation Department strengthened navigation safety management, arranged for personnel on duty for 24 hours, and made over -heavy ships to enter the lake to prevent the ship from stranding.

In order to ensure the safety of ship navigation, the navigation department of Houkou County has banned ships from the Yangtze River from the Yangtze River at night to enter the Poyang Lake at night. At present, the area of ​​Tongjiang water in Poyang Lake District is only 291 square kilometers. The water level in the upstream Wuhe water level in the Ganjiang, Fuhe, and Xinjiang River approaches or falls below the lowest water level.

(Reported by China News Network, CCTV News, China Environmental Network)

Edit: Cheng Yi

School pair: ： 对

Review: Gong Zimo

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