荒漠化威逼全球

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摘要今年6月17日是第八个“世界防治荒漠化和干旱日”。荒漠化并不是指沙漠的扩大，而是指包括气候变异和人类生活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。

作者高华何亦红

出处《中国科技画报》 2002年第7期42-44,共3页 China Science & Technology Pictorial

关键词荒漠化现象沙漠气候变异土地退化人类生活亚湿润干旱地区半干旱地区沙化土地防治工作

参考文献5

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中国科技画报

2002年第7期

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