mantle of soil的意思|示意

The research indicates that red clay and mantle rock soil, which distribute both sides of gully and with rich groundwater, are better for shallow-root tree to grow.

研究结果表明，红胶泥和风化岩沫土土壤地类主要位于沟谷两岸，地下水供给较为充裕，是浅根性树木生长发育的良好土壤类型；

The classification system of soil mantle is set up and is Characterized by spatial order of soil mantle considering the spatial ground the types of landforms.

以土被结构空间有序为特征，充分考虑土被各种空间基础，即地貌类型，建立土被结构分类系统。

This system is used for dividing the types of the soil mantle structure in Weinan administrative region.

并应用这个系统划分了渭南地区土被结构类型系统。