生物土壤结皮在荒漠化地区广泛分布。
Biological soil crust exists in desertification prone areas.
西北荒漠化地区，包气带中的水分除来自大气降水外，还来自凝结水。
In desertification areas of northwest China, the water content in the unsaturated zone originates from atmospheric precipitation and from water condensation.
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.
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