French News Radio on February 21**, original topic: environmental improvement, migratory birds return to China Pollution and urbanization have caused migratory birds to leave. But China invests heavily in the construction and protection of wetlands. It worked, and the birds returned.
Escaping Russia's Siberian cold, tens of thousands of ducks, storks and swans have returned to China. Photographer Chen Jing sees this change very clearly in her lens: "Recently, I have photographed a lot of baby swans. Two years ago, however, we barely saw them, and this year there are a lot of them. ”
Previously, due to the lack of habitat and environmental pollution, the number of migratory birds wintering along the Yangtze River has been greatly reduced. Today, some migratory birds have found a home in the Yangtze River in Nanjing's Yangtze River Xinjizhou National Wetland Park.
Mr. Li, the person in charge of the park, said that in 2016, the park was upgraded to a national wetland protection park. "The improvement has been particularly significant: the number of migratory bird species has risen from 103 to 230. "The wetland park is a bird paradise, covering more than 2,600 hectares, and although it is far from humans, it does not need to be managed manually, and there are numerous cameras that can monitor it 24 hours a day.
In the hidden building in the center of the park, we can ** the ecological situation of the park in real time. According to the large screen of intelligent monitoring, the wetland park is composed of 5 islands, on which there are many video monitoring points and multiple sound monitoring points. In this way, ornithologists have a good grasp of weather data, bird movements and numbers. Monitoring shows that the number of birds in the park has reached 67,000 this year.
There are many examples of how technology can serve ecological diversification, such as a wild duck with a pointed tail on a large screen with an ultra-high-resolution camera, and Mr. Li pointed to the duck and said, "There are a lot of mallards here, but this is a pintail duck."
The ecological effects of wetlands can also be felt in urban areas, such as in Nanjing's Xuanwu Lake Park. A large number of cormorants can be found everywhere in the park. The park management has introduced lotus flowers, small fish and other creatures into the lake. Ms. Rong, a staff member, said that in recent years, the park has continued to improve the ecosystem, and the introduction of aquatic plants has greatly improved the water quality of the lake. China has once again become an indispensable stop on the migration of many migratory birds. (Written by Arno Migay et al., translated by Zhao Fengying).