沙漠化现象威胁人类严酷的现实沙漠周边易沙漠化。但这并不仅限于沙漠本身的扩大；如果受到强力的人为冲击，即使距沙漠遥远的半湿润地区也可能沙漠化。就这层意思看，或许以“土地荒废”代替“沙漠化”的说法较贴切。沙漠化系进行到某个程度后即无法恢复的不可逆现象，此... Desertification threatens the harsh realities of mankind. But this is not limited to the expansion of the desert itself; desertification can be deserted even in semi-humid areas far away from the desert if subjected to powerful man-made impacts. In this sense, it may be more appropriate to replace “desertification” with “deserted land”. The irreversible phenomenon that desertification can not be resumed to a certain extent, this ...