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| Saharan Climatic Zone (西非，西非萨赫勒和苏丹带按气候分六带，其中最北的一带为撒哈拉气候带，地处撒哈拉南缘干旱地区。年雨量100〜200mm。 面积296万km²、约占西非萨赫勒带和撒哈拉带总面积的56%。人口 80万，人口密度约0.3人/km²。这里人烟稀少，雨季有南来的畜群短期放牧，荒漠化现象轻微甚至不显著，所谓撒哈拉南移，证据不足) | |||
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撒哈拉气 候 带 : 2 phrases in 1 subject |
| Desert science | 2 |
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