Ecosystem worsens despite efforts in China

0 Comment(s)Print E-mail Xinhua, November 4, 2012
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Based on experts' calculation, 5 million tonnes of sand and salt dust is blown away each year and spread thousands of km to reach the regional capital of Urumqi and even the city of Beijing.

"I once drove from Jinghe county to Urumqi on a business trip, and the sandstorm chased us all the way. It was more horrible than what we see in the movies," said Haiming, a member of staff at a local publicity office.

Jinghe County is 35 km south of Lake Aibi. As the ecosystem worsens, the county now suffers 180 days of sandstorm each year, 13 times the number it did in the 1960s.

Salt dust drops on transmission lines and causes power failure in neighboring counties about 200 times on average every year. Jinghe alone suffers more than 50 million yuan (about 8 million U.S. dollars) in direct financial losses, and hundreds of millions in indirect losses.

The course of the 312 national highway that runs past Lake Aibi has been changed three times as sandstorm erode and bury the road.

The grassland produces only half of the grass it did a decade ago. Thirteen percent of cattle die from diseases each year while in 1980s the figure was only 4.6 percent.

Excessive land reclamation and flood irrigation are accelerating the lake's desertification.

"Ten years ago, we could get a water well by digging several meters underground, now we have to dig more than 100 meters," said Huang Faxin, deputy head of the Lake Aibi Wetland National Nature Reserve Administration.

He said only two out of 11 rivers that used to feed into the lake continue to provide it with water.

A large area of land is being reclaimed around the reserve and at the upstream of the rivers. As a result, the flow of water into Lake Aibi is slowing dramatically.

Farmers are using more water than they need in choosing flood irrigation instead of water-saving trickle irrigation, because the latter measure is more expensive.

"For every hectare of land reclaimed, the lake will shrink 2.25 square km," said Huang. "In another 10 years, the eight farms scattered around the lake basin and hundreds of thousands of hectares of land will no longer exist and more than 300,000 people have to leave their homeland."

 

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