Baihe taken in Poyang Lake District, Wucheng Town, Yongxiu County, Jiangxi Province (photo taken on April 7, drone photo). Xinhua News Agency (photo by Wang Xiaolong)
Xinhua News Agency, Nanchang, September 25th. As October approaches, China's largest freshwater lake, located in Jiangxi Province, is eagerly waiting for a rainfall - in order to welcome the arrival of migratory birds.
Poyang Lake is an important water bird wintering place on the East Asia-Australia migratory route, and occupies an important position in the global ecological niche. About late October every year, more than 700,000 wintering migratory birds flew to Poyang Lake from East Siberia, Xinjiang, China and other places, including 98% of the world's white cranes, 80% of the Oriental White Stork and a series of rare birds.
However, the cold air entering Jiangxi on September 20 still failed to bring effective precipitation to the lake area. Previously, the subtropical high pressure controlling the northern hemisphere caused drought in many places around the world. On September 6, the water level of Xingzi Station in Poyang Lake retreated to 7.99 meters; on the 23rd, the water level retreated to 7.10 meters, and the Tongjiang water body shrank by more than 90%.
On the Poyang Lake Bridge on Jiujing Expressway, the reporter observed that in early July, the lake was still vast and smoky, with large areas of river beaches exposed, and yellow sand was raised. Near Luoxingdun , more than 30 kilometers away, Moss Grass , which originally sprouted around November, has grown beyond the knees of adults, and the bottom of the lake has become a vast "grassland".
The waters shrink widely, the fish and shrimps in shallow waters decrease, the soil drought of the lakes and the aging of moss and grass fibers. How can the arid Poyang Lake welcome the upcoming "guests"?
"We are also thinking of ways to provide rest conditions for migratory birds as much as possible under unfavorable climate conditions." said Yu Zude, director of the Wildlife Protection Station of Hukou County Forestry Bureau.
is near the inlet of Poyang Lake. The reporter saw that within the lake area, a small shallow lake still retains a certain amount of water. The local management department has diverted water from the inner lake of the North and South Port with abundant water storage to the dish-shaped lake in the main lake area through the gate opening dispatch. Yu Zude introduced that the dish-shaped lake is a seasonal lake exposed in the continental beach after seasonal drying in the main lake area of Poyang Lake. The dish-shaped lake has shallow water and good light transmission. It is suitable for the growth of submerged plants, , fish and benthic organisms, and is an ideal place for migratory birds to forage. At present, many places in the Poyang Lake area have started to replenish water for dish-shaped lakes.
The water level of Poyang Lake has dropped, and the Luoxingdun in the lake area has been fully exposed (photo taken on August 17, drone photos). Xinhua News Agency reporter Vientiane
In Lushan City, on the east side of the North Lake in Poyang Lake, a batch of white spoonbills flew to the Shahushan Wetland around the 21st. However, due to the decrease in edible fish and plants, migratory birds may fly to rice fields, lotus fields, ponds and other places in the lakeside area for food.
Chen Chaoyang, deputy director of the Lushan Forestry Bureau, said that in previous years, there were fewer cases of people and birds competing for food, and this year it may be more prominent. The local area is seeking financial support from superiors to compensate farmers who may be damaged. "We hope that through preparations in advance, the people should not drive away migratory birds when they see migratory birds, so that long-distance migratory birds can eat grain."
's practice has been adopted by Nanchang High-tech Zone, Yugan County, Shangrao City and other places. Hundreds of acres of late rice are reserved for not harvesting as a "migratory bird canteen", and grain growers will be compensated in reference to surrounding grain harvests and market grain prices.
researchers are also busy "maintaining grain" for migratory birds.
On the beach of Changhuchi, Poyang Lake, some knee-high and slightly yellow moss grass was cut off. It turns out that only moss grass that grows for 8 to 28 days is suitable for geese to feed. In previous years, when geese flew to Poyang Lake, they happened to catch the best eating period for moss grass, but this year, moss grass germinated about 100 days in advance. When the geese arrived, the fibers were too aging.
To this end, Institute of Geographical Sciences and Resources, Chinese Academy of Sciences , in conjunction with the Jiangxi Poyang Lake National Nature Reserve, carried out moss grass mowing experiments on a 16,000 square meters of grass beach to promote moss grass to grow tender buds, and explore the best "recipes" by setting different mossing time intervals and frequency. The experimental results will be used to guide mowing work in other areas of the lake area.
htmlWang Diyou, the captain of the Lianxi District River Porpoise Association Patrol Team, also began to be busy with the imminent arrival of migratory birds.The team he led patrolled along the 65-kilometer lake shoreline for more than ten hours every day. In addition to patrolling the porpoise and removing garbage, he also took on the task of persuading tourists to leave the lake basin area and creating a safer and quieter environment for migratory birds."Migratory birds are afraid of people. Originally, people cannot come in the waters. But people love birds, so they must consider them so that they can fly thousands of miles." Standing on the speedboat, Wang Diyou looked to the north. He hoped that all the "elves" who arrived this year would be fine. (Reporters: Hu Jinwu, Huo Dantong, Chen Yushan, Xiong Jialin)