humus soil

The paper points out that the factors which influence the bark quantity are soil quality, the position and the shape of the slope, the depth of humus soil, and the content of organic matter.

影响黑荆树皮量主导立地因子有土壤质地、坡位、黑土层厚度、坡形、土壤有机质含量。

The sizes of humus soil from top to down changed conversely, decreasing first and then increasing.

腐殖质层从上至下的粒径变化是先减小后增大.

Study on Pollutant Removal Efficiency of Humus Soil Activated Sludge Process

腐殖土强化活性污泥工艺的除污效果研究

Humus soil is the best culture substrate for Chinese pine.

腐殖质土是培育油松苗的很好基质。

The earth surface of the region across it is mostly thicker humus soil or leaf falling covering layer, and has good heat reserving property, it is mostly weathering shingle, soil-aggregate mixture, and clay-gravel 0.5m-4.0m under it, and weathering rock.

所经地区的地表多为较厚的腐殖土或落叶覆盖层，其保温性良好，下层0.5&4.0米多为风化沙砾、碎石土和砾石土，，4.0米以下为风化岩石。