沙漠化是土地退化/荒漠化的主要形式之一,是一种因为人为活动与自然资源不相协调所产生的,以风沙活动为主要标志的土地退化过程。到80年代后期我国北方已经沙漠化了的土地达19.7万km~2,另外还有13.7万km~2的土地处在沙漠化的潜在威胁之下,最近十几年来,平均每年有2100km~2的北方农牧业用地沦为沙漠化土地,并有加速发展的趋势。消漠化已直接影响3500万人民的生存环境和区域经济的发展。是一个必须重视的环境——经济问题。 Desertification is one of the main forms of land degradation / desertification. It is a process of land degradation that is mainly characterized by wind-blown sand activities, which is caused by a lack of coordination between man-made activities and natural resources. By the late 1980s, 197,000 km2 of desertified land in the northern part of China were found, and 137,000 km2 were under the potential threat of desertification. In the recent 10 years or so, the average area of ​​2100 km ~ 2 north Land for agriculture and animal husbandry has been reduced to desertified land and has been accelerating its development. Desertification has directly affected the living environment of 35 million people and the development of regional economy. It is an environmental-economic issue that must be valued.