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The Great Wall News
New forests fend off desert encroachment at Great Wall
Northwest China's Shaanxi Province has been successful in fending off desert encroachment with afforestation near the ruins of the Great Wall...
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700-km-long Great Wall found in NW China
More than 700 km of ancient Great Wall has been discovered in Gansu and Shaanxi provinces, as a result of the third national survey on cultural relics started in April, 2007...
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Parts of Great Wall still to be found
The oldest sections of the Great Wall in the Beijing area - parts built around 1,500 years ago - should be getting more attention...
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Sandstorms Devouring Great Wall in NE China
Sand storms in northwest China's Gansu Province are reducing sections of Great Wall to mounds of dirt and may cause them to disappear in about 20 years, according to archaeological experts.
Zhou Shengrui, former curator of the Minqin County museum, said that a national survey in the 1980s recorded more than 60 kilometers of Great Wall in the county. He reported that this section of the wall was rapidly disappearing.
This part of Great Wall, built in the Han Dynasty (206 B.C.- 220 A.D.) and extended in the Ming Dynasty (1368-1644), is on the main trunk of the Wall. It runs from the Shanhaiguan Pass in north China's Hebei Province westward to Gansu's Jiayuguan Pass, about 500 kilometers west of Minqin.
"This section of Great Wall was made of mud rather than brick and stone and is more prone to erosion. Over time, the wall has become brittle and the mud has been sanded down and blown away," Zhou explained.
"Similar erosion has happened to the Great Wall in other places, but the situation is much more worse here," he added.
Extensive farming since the 1950s sapped underground water in Minqin and destroyed the local ecology. The 400-sq-km, 60-meter-deep Qingtu Lake has dried up in the last 30 years. By the early 1990s, the lake was smothered by creeping yellow sand and become part of the Badain Jaran Desert, which now spans more than 40,000 square kilometers.
Minqin has since then become a major source of sand storms in northwestern China.
"Frequent storms have not only eroded the mud, but also cracked the Wall and caused it to collapse or break down," Zhou said.
More than 40 kilometers of the Wall have disappeared in the past 20 years. Only about ten kilometers remain.
Its height has been reduced from five meters to less than two meters. The square lookout towers have disappeared completely.
Wei Zhaobai, 61, a resident in Chengxi Village, Daba Township of Minqin, said, "The Great Wall gets shorter every year.”
"When I was seven or eight years old, the section of Great Wall about 1,000 meters west of my village was still like new. We used to walk on it like the ancient soldiers," Wei said.
"As a relics protector, it saddens me to see the Great Wall being blown away, but we hope it can be a warning of what we have done to ourselves and our environment," Zhou said.
He said that unless the local vegetation was re-seeded and the sand storms contained, the damage would be irreversible.
Local workers are covering the wall remains with more sand and dirt. "If sand storms strike again, it will take some time to blow the top-dirt away. That'll give us time to build barriers and plant trees," Zhou said, adding that there was no other solution at present.
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(Xinhua News Agency August 29, 2007)
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