The soil bulk reduced, the soil porosity and permeability improved.
地块的土壤容重减少，提高土壤膨松度，增强土壤透气性。
This paper is a new subject of the study on cohesive soil porosity by microscopic quantitative analysis.
本文是对粘性土孔隙进行微观定量研究的新课题。
There is a clear linear positive correlation between the soil water infiltration rate and the soil porosity.
土壤入渗速率与孔隙度之间具有明显的线性正相关关系。
Soil radium contents, water contents, soil porosity and grain size were concretely analysed in our laboratory.
采集土壤样品，在实验室进行土壤镭含量、含水量、孔隙度和粒径分布等物理性质测量。
The mixed forest transformed net increase in forest litter layer of the soil surface allowed the small soil bulk density and larger soil porosity.
改造后的纯林内增加了土壤表面的枯枝落叶层，从而使得其内的土壤容重小，土壤孔隙度变大；
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%.
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%。
Four kinds of amendments can improve soil physical properties. Soil bulk density decreased, soil porosity, permeability coefficient and field capacity increased under treatments.
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。
The results showed that after skidding operation, the soil density increased, the soil moisture condition got bad, the soil porosity and the contents of soil nutrients decreased.
通过对半悬索道集材后林地土壤理化性质的分析，结果表明：半悬索道集材后土壤容重增加，土壤结构和水分性能变差，土壤养分含量下降。
The volume quality of top soil is increased and the soil porosity is reduced owing to compaction, so water flow downward difficultly and the amount of water vertical infiltration is reduced.
由于压实，增加了表层土壤的体积质量，降低了土壤孔隙度，水不易向下运动。
Soil organic matter, soil porosity, availible N, Zn, Fe, Mn and enzyme are all positively related to the amount of straw applied remarkably, while soil specific weight is negatively correlative.
土壤有机质、孔隙度、速效氮、锌、铁、锰、酶活性等理化指标与秸秆还田量呈显著正相关；
Methods Based on soil radon diffusive theory, a model including the influences of soil radium content, emanation coefficient, soil porosity and moisture saturation on radon exhalation was established.
方法通过对氡在土壤中扩散理论的分析，建立土壤氡析出率数学模型，该模型考虑了土壤的镭含量、射气系数、孔隙度和含水饱和度等因素对氡析出率的影响。
With their enormous size and weight, today's farm machines have significant downsides: they compact the soil, reducing porosity and killing beneficial life, meaning crops don't grow so well.
由于庞大的体积和重量，现在的农业机械有显著的缺点：它们会把土壤压实，降低土壤孔隙度，杀死有益的生命，这意味着农作物不会长得太好。
Red soil is a widely regional special soil which has high porosity ratio, high water content, high strength and low compressibility.
红土是一种广泛分布的具有高孔隙比、高含水率、高强度和低压缩性的区域性特殊土。
This article mainly studied the variation of aeration porosity in soil under shed protection in Harbin, Heilongjiang Province.
本文主要对黑龙江省哈尔滨市一定点大棚内土壤剖面通气孔隙的变化进行了研究。
Then, the bulk density, porosity, the type of pore and clay content in the soil affected the soil moisture diffusivity.
土壤容重、孔隙大小、孔隙类型及土壤颗粒组成中粘粒含量对土壤水分扩散率都有一定的影响。
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。
The effects of high intensity fires on soil unit weight, porosity and separate coefficient were significant.
高强度火烧对土壤容重、孔隙度和分散系数的影响均显著。
Aeration porosity is more sensitive than total and capillary porosity to reflect soil compaction degree.
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。
Rainfall makes the soil density and disperse coefficient increased and porosity decreased.
降雨能使火烧迹地的土壤密度和分散系数升高、孔隙度下降。
Low and moderate intensity fire had no or little effects on soil unit weight and porosity, which was different from that on separate coefficient.
低、中强度火烧对土壤容重和孔隙度的影响不是很人，而对土壤分散系数却有影响。
The target porosity and thickness of pavement of the permeable asphalt mixture on the basis of the factors such as reducing the runoff, the filter ability of soil base and pavement overflow.
基于减小地表径流、土基渗透能力及铺装溢流量等方面因素，设计透水性沥青混合料的目标孔隙率及铺装厚度；
So far, fractal geometry has been widely applied to study the porosity, permeability and percolation properties of the rock and soil, and other materials.
目前分形几何已被广泛应用来研究岩土的孔隙率，输运特性和渗透性等等。
Purple soil is rich in capillary porosity and good permeability, high soil fertility and it is our country's precious agricultural soils resources which has been developed in wide range.
紫色土质地较好，具有丰富的毛管孔隙和良好的透水性，且土壤肥力较高，已被广泛的开发利用，是我国宝贵的农业土壤资源。
The soil density is decreased, and the disperse coefficient and porosity are increased in the sites where were burnt in successive years.
连年火烧使土壤密度比未烧林地下降，而孔隙度和分散系数升高。
The major factors of the soil developed from arenite were soil-layer depth, non-capillary porosity and humus depth.
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。
Performance is mainly determined by the soil physical properties, soil density, moisture, porosity, clay content and the forest root such as other factor.
其性能主要是由土壤密度、水分、孔隙度、黏粒含量等土壤物理性质以及森林植物根系等因子决定。
Upward along the slope, soil pH value, organic matter content, total porosity and capillary porosity increase, and soil bulk density decreases.
土壤容重沿坡面向上减小可能主要与土壤有机质含量、粘粒含量、结构状况和松紧度以及孔隙度状况等有关。
The effects of forest fires on soil separate coefficients, porosity, saturated water-retaining capacity, available Mg, fine root significantly varied between the fire intensity.
火烧强度对上壤分散系数、孔隙度、饱和持水量、有效镁、细根系生物量的影响有显著差异。
The soil evaporation, leaf transpiration rate and surface Infiltration of PS was highest, surface runoff was lowest, relating to porosity of PS.
在土壤蒸发、叶片蒸腾、地下入渗中PS最高，在地表径流中ps最低，这与PS的孔隙度有关。
Soil loosing can improve the physical characters and raise water content and porosity of range soil.
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。
应用推荐