(贵阳市)针对我国北方土地沙漠化和沙尘暴的日益严重,专家们建

(贵阳市)针对我国北方土地沙漠化和沙尘暴的日益严重,专家们建议提高植被覆盖率,减少裸地面积,这样可以使土壤的水分________显著减少

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