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荒漠化是人类面对的重大挑战之一。目前,全球每年因土地荒漠化造成的经济损失有400多亿美元。作为荒漠化最严重的国家之一,我国的荒漠
Desertification is one of the major challenges facing mankind. At present, there are more than 40 billion U.S. dollars of economic losses caused by desertification each year in the world. As one of the most desertified countries, the desert of our country