BEIJING, China (Reuters) — Eight million acres of China’s farmland is too polluted to grow crops, a government official said highlighting the risk facing agriculture after three decades of rapid industrial growth.
China has been under pressure to improve its urban environment following a spate of pollution scares.
However, cleaning up rural regions could be an even bigger challenge as the government tries to reverse damage done by years of urban and industrial encroachment and en-sure food supplies for a growing population.
Wang Shiyuan, the country’s vice-minister of land and resources, said China was determined to rectify the problem and had committed “tens of billions of yuan” a year to pilot projects aimed at rehabilitating contaminated land and underground water supplies.
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The area of China’s contaminated land is about the same size as Belgium. Wang said no more planting would be allowed on it because the government was determined to prevent toxic metals entering the food chain.
“In the past there have been news reports about cadmium-contaminated rice,” he said.
“These kinds of problems have already been strictly prohibited.”
Inspectors found dangerous levels of cadmium last year in rice sold in the southern city of Guangzhou. The rice was grown in Henan, a major heavy metal-producing region.
China’s determination to squeeze as much food and resources as possible from its land has put thousands of farms close to chemical plants, mines and other heavy industries, raising the risks of contamination.
With food security still the most pressing concern, China is determined to ensure that at least 295 million acres of land is reserved for agriculture.
Rehabilitation of polluted land is part of that policy.
A government land survey revealed traces of toxic metals dating back at least a century as well as pesticides banned in the 1980s, and state researchers have said that as much as 70 percent of China’s soil could have problems.
