沙漠化是当前全球最严重的环境问题之一。据联合国环境规划署统计(1991年),沙漠化问题波及到全球大约9亿人口(有的资料称12亿人口,其中有1.35亿人在短期内有失去土地的危险),100多个国家和地区,36亿公顷土地,占全球陆地面积的1/4,而且还在扩大中。
目前我国沙漠化防治仍然面临着“局部治理,整体恶化”的严峻态势。
Sandy desertification control in China at present is still faced with an arduous status of !
保护地表土层对于保护草地资源和生态环境,以及沙漠化防治具有极端重要性。
The protection of top soil layer has utter most importance in protection of grassland resources and ecosystem, and in prevention of sandy desertification.
农牧交错区是我国沙漠化土地分布和危害的主要地区,是我国沙漠化防治的重点区域。
The interlacing pastoral-agricultural area is the main distribution and damage region of sandy de- sertified lands and the vital zone of sandy desertification control in China.
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