Under certain soil texture, bulk density and water content of soil, moving time and distance of soil solute were regarded as the main parameters on soil solute transport.
土壤养分运移和土壤次生盐碱化都是土壤溶质运移领域研究的主要内容，而且土壤养分运移研究起源于土壤水盐运动的研究理论。
In -this paper, distribution of natural bulk density, water content, and the relationship of grain size with bulk density and water content are studied by regression analysis.
本文论述了南黄海表层沉积物天然湿容重和含水量的分布，并利用回归分析的方法讨论了容重和含水量与粒度之间的关系。
An amende nt should decrease bulk density increase toltal porosity and incr ease water and air content.
改良剂能降低容重，增加总孔隙度，增加水和空气的含量。
The coefficient of variation of saturated water content decreased with the depth of profile. The coefficient of variation of bulk density and field capacity fluctuate with depth of soil.
饱和含水量的变异系数都随深度的增加逐渐降低，含水量、容重和田闷持水量的变异系数随深度的呈波动变化。
The only input factors of the simplified model were soil radium content, dry bulk density, water content and soil texture type and the output was soil radon exhalation rate.
模型只需输入土壤样品镭含量、容重、质量含水率和质地名称，就可以输出该样品的氡析出率理论值。
Moreover, the relationship between dielectric constant and soil water content for two types of soil different from three empirical models due to organic matter or bulk density.
由于有机质或容重等因素的影响，另外两种土壤介电常数与含水量的关系与上述三个模型差别较大。
The nuggets of bulk density and wilting point are very tow, and the nugget of soil water content is decreased with depth.
容重和萎蔫含水量的块金值都很小，尤其是萎蔫含水量在各层的块金值都相等，含水量的块金值随剖面深度而降低。
Under the condition of unsaturated capacity, the evaporation intensity of soil water has parabola in evaporation with the content of soil organic matter and bulk density.
在非他和含水量下，土壤水分蒸发强度与土壤有机质和容重呈抛物线状；
When the soil bulk density water content is between 15% to 45%, the calibration curve is approximately a straight line, and the intercept and slope are only influenced by the above factors.
当土壤容积含水量为15 ~ 45%时，校正曲线近似为一直线，其他因素只改变直线的截距或斜率。
Effects of bulk density on the two parameters were analyzed. The results showed that saturated mass water content decreased with the increment of bulk density and was inverse to bulk density.
结果表明：饱和重量含水量随容重的增加而减小，与容重成反比关系，饱和导水率随着容重的增加呈现幂函数形式递减。
Effects of bulk density on the two parameters were analyzed. The results showed that saturated mass water content decreased with the increment of bulk density and was inverse to bulk density.
结果表明：饱和重量含水量随容重的增加而减小，与容重成反比关系，饱和导水率随着容重的增加呈现幂函数形式递减。
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