心土层
- 网络subsoil;subsoil layer
心土层-
以浙江金衢盆地未开垦的荒地红壤为例，研究了红壤心土层在逐步风干脱水条件下的结构性变化情况。
In research for understand of the changes of soil structureness in subsoil layer during its weathering and dehydration processes , the uncultivated red soil has been sampled .
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4类森林的土壤种子库储量在土层中的垂直分布为枯落物层>腐殖质层>心土层；
The seed reserves were highest in litter layer , followed by that in humus layer and subsurface soil layer .