在我国，尤其是北方，干旱是农业生产最严重的限制因素。
In China, especially in North China, drought is the most serious limiting factor for agricultural production.
浑善达克沙地是我国北方干旱半干旱区的主要沙地和严重荒漠化地区之一。
Otindag Sandland is one of the main sandlands and among the most seriously desertificated region in semiarid area of China.
我国水资源的空间分布也不均匀，南方会出现洪涝灾害，北方缺干旱缺水。
The distribution of water resources is also not balancing, the south faces floods, while the north is drought.
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