Wetlands protection efforts reap rich rewards

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Zhao Ruixue,Ma Jingna
Tuesday 21 December 2021 11:01 EST
An oriental stork flies to its nest on a pole at the Yellow River Delta National Nature Reserve
An oriental stork flies to its nest on a pole at the Yellow River Delta National Nature Reserve (YANG BIN / FOR CHINA DAILY)

Deep into autumn, flocks of migratory birds arrive in quick succession in the Yellow River Delta in Dongying, Shandong province.

Late last month, many birds were seen resting on ponds beside a road more than six miles from the Yellow River Delta National Nature Reserve, which has been dubbed an “international airport for avian species”.

At the reserve, flocks of birds flew across the sky and whooper swans were gliding slowly over the surface of lakes, while other birds chirped in the woods.

Zhao Yajie, who has monitored the condition of the birds for the reserve’s management committee for seven years, said the Yellow River Delta, one of the largest in China, has a temperate, semi-humid continental monsoon climate. It is a place for millions of birds to breed and also a winter stopover for them.

“Last year, about six million birds stopped over at the reserve, including rare species such as the red-crowned crane and the Saunders’s Gull,” Zhao said, adding that flamingos and white pelicans were observed there for the first time last year.

A mallard leads her ducklings on a walk through seagrass at the reserve
A mallard leads her ducklings on a walk through seagrass at the reserve (LIU YUELIANG / FOR CHINA DAILY)

In Gansu province, Wang Jiayang, who works for a management and protection centre station at the Yellow River First Curve National Nature Reserve in Maqu county, Gannan Tibetan autonomous prefecture, said that in November last year about 30,000 birds stopped over at the reserve’s wetlands. It was the first time that so many birds had been seen at the venue, on the upper reaches of the waterway.

Gou Hongshui, director of the Yellow River Delta National Nature Reserve’s management committee from 2019 to May 2021, said: “Birds know whether an environment is good or not. Increasing numbers of migratory species are stopping over at the reserve. Some make it their home all year – good evidence that the delta’s ecological system is constantly improving.”

Rising in the Bayan Har Mountains in Qinghai province, the Yellow River, China’s second-longest, flows through a plateau blanketed with fine, windblown soil. Millions of tons of soil are carried east by the river every year, with some of it reaching the estuary, where the waterway flows into the Bohai Bay in Dongying, forming a large expanse of wetlands.

In the 1980s and 1990s, coastal erosion, seawater encroachment and droughts caused the wetlands to shrink. The delta’s rich wetland ecosystems were also seriously threatened by rapid urbanisation, oil and industrial waste pollution, and land reclamation, according to the reserve’s management committee.

To protect the wetlands, the reserve was established in 1992. It covers about 591 square miles, the wetlands comprising 70 per cent of the total.

To advance ecological conservation and high-quality development at the mouth of the river, local governments are working on building a Yellow River estuary national park, which will cover 831 square miles of marine area and 529 square miles of land, according to the reserve.

The national park will be the first in the country to boast land and marine areas.

Previously published on Chinadaily.com.cn

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