按非地带性规律分布的干热河谷景观生态区是中国南方局部区域荒漠化过程的前奏。
The eco-landscape regions in hot arid valleys, which are distributed in southern China according to azonality law, are the prelude of desertification.
区域上地带性植被中的沙地植被总体上与地下水位埋深关系不大，非地带性植被中湿地植被与地下水关系密切。
The sandy vegetation in regional zonal vegetation has little to do with groundwater depth, however the wetland vegetation in azonal vegetation is much related to groundwater.
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