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您知道世界防治荒漠化日的由来吗？全世界荒漠化面积约相当于四个中国不防不治不得了！荒漠化是指包括气候变异和人类活动在内的种种因素造成的干旱、半干旱和亚湿润干旱地区的土地退化。“土地退化”是指由于使用土地或由于一种作用或数种作用结合导致的干旱区、半干旱区...
Do you know the origin of the World Day to Combat Desertification? The desertification area in the world is equivalent to about four Chinas Desertification refers to the degradation of land in arid, semi-arid and dry sub-humid areas caused by various factors including climate change and human activities. “Land degradation” refers to the arid, semi-arid areas that result from the use of land or due to one or a combination of several ...