改良剂能降低容重，增加总孔隙度，增加水和空气的含量。
An amende nt should decrease bulk density increase toltal porosity and incr ease water and air content.
松土可改善土壤的物理性状，土壤含水率和土壤总孔隙度增加。
Soil loosing can improve the physical characters and raise water content and porosity of range soil.
与常规水作相比，覆膜旱作稻田土壤容重有所下降，总孔隙度增加显著；
The results were as follows:Compared with conventional flooded paddy soils, rain fed and mulching plastic film slightly reduced bulk density, increased total porosity of the soils.
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.
对于含泥浆较多的物质或石灰岩，其总孔隙度和有效孔隙度会有很大差别。
For more highly cemented materials and limestones, significant difference in total porosity and effective porosity values may occur.
林地土壤的总孔隙度都比荒地高，表明林地土壤的物理性状和结构要优于无林地。
The results showed that the structures and physical characters of forestland better than that of the wasted land. (5)There were obvious permeability differences in different planting forestland.
林地土壤因子调查的结果是混交林内土壤的通气性、透水性及总孔隙度均好于纯林。
Investigation of the soil factors showed that the aeration and water perviousness of mixed forest were better than that of pure forest.
两个试验田改良后土壤性质定量研究表明：（1）土壤容重降低，土壤总孔隙度增加；
The studies of the soil properties suggested : (1) the bulk densities of the soils decreased and the general porosity of soil increased after amelioration;
用声波时差计算总孔隙度中t与计算出的中子孔隙度中。 对比，其差值就是CO：的影响所致。
The difference of the porosity-calculated from sonic log and from neutron log is related to the effect of CO2 in gas-bearing beds.
结果表明：生草可改善土壤物理性状，使土壤容重平均降低5.68%，总孔隙度提高6.15%。
The results indicated that green coverings improved soil physical characteristics, soil bulk density decreasing by 5.68% and the soil porosity increasing by 6.15%.
四种改良剂均能不同程度的改善土壤物理性状，能降低土壤容重，提高土壤总孔隙度，加快渗透速度，增加田间持水量。
Four kinds of amendments can improve soil physical properties. Soil bulk density decreased, soil porosity, permeability coefficient and field capacity increased under treatments.
介绍了根据测井资料可综合评价泥质盖层的参数，包括厚度、排替压力、盖层总孔隙度、有效孔隙度、渗透率、含砂量等。
Log data may be used for calculating shaly capping beds parameters such as thickness, displacement pressure, total porosity, effective porosity, permeability, sand content, etc.
芨芨草草地土壤容重较本氏针茅草地和裸地小，各层的总孔隙度和毛管孔隙度明显高于本氏针茅草地和裸地，但非毛管孔隙度较本氏针茅草地和裸地低。
Compared to Stipa Bungeana grassland and fallow ground, the volume weight was smaller, total porosity and capillary porosity were higher, but non-capillary porosity was lower.
芨芨草草地土壤容重较本氏针茅草地和裸地小，各层的总孔隙度和毛管孔隙度明显高于本氏针茅草地和裸地，但非毛管孔隙度较本氏针茅草地和裸地低。
Compared to Stipa Bungeana grassland and fallow ground, the volume weight was smaller, total porosity and capillary porosity were higher, but non-capillary porosity was lower.
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