砂岩发育的土壤主导因子是土层厚度、非毛管孔隙度和腐殖质层厚度。
The major factors of the soil developed from arenite were soil-layer depth, non-capillary porosity and humus depth.
与总孔隙度和毛管孔隙度相比，通气孔隙度在反映土壤压实时更为敏感。
Aeration porosity is more sensitive than total and capillary porosity to reflect soil compaction degree.
并分别得出土壤容重、比重、毛管孔隙度和饱和导水率与粉煤灰用量的模拟方程。
The simulation equation between these ecological factors and the amount of coal fly ash was gained.
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