soil dried layer

基本解释

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 dried soil layer exists in this area widespreadly, not only in the artificial vegetation but also in the natural vegetation.
该地区土壤干燥化层是普遍存在的，不仅存在于人工植被，也存在于天然植被。
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。