Then, the bulk density, porosity, the type of pore, particle constitute and organic carbon in the soil affected the soil moisture diffusivity.

土壤颗粒组成、容重、有机质、孔隙率影响土壤持水性能。

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Soil density and soil particle of the loam are decreased but those of the sand are increased.

壤土的土壤密度、比重降低，而砂土的土壤密度、比重增高。

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