soil dried-layer 土壤干层
Cause of soil dried layer 干层成因
restoration of soil dried layer 干层恢复
dried layer of soil 土壤干层
dried soil layer 土壤干层
In artificial forestland, soil dried layer has been formed because of water deficit.
在人工林地，因水分亏缺形成了严重程度不同的干化层。
The study reveals that the formation of dried soil layer is mainly caused by natural factors due to the reduction of precipitation and gravitational water.
研究表明，土壤干层的形成主要是自然原因造成的，是降水量少决定的重力水带分布深度小引起的。
In order to avoid the occurrence of dried soil layer, it is necessary to select the tree species with slow growth and low water consumption, and the afforesting density should be reduced.
为防止严重的土壤干层发生，选择生长较缓慢、消耗水分少的树种是必要的，并应减小造林树种植株密度。
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