对北京市污灌区非饱和土壤水扩散率及其影响因素进行了研究。
This paper discussed the unsaturated soil water diffusivity and its effect factors in waste water irrigation district in Beijing.
铵态氮水平运移的浓度受非饱和土壤水扩散率的影响，并随非饱和土壤水扩散率的升高而呈幂函数曲线下降。
The concentration of ammonium nitrogen in horizontal migration decreased with the increase in unsaturated soil water diffusivity in power function.
当土壤水吸力增大到一定值时，中间土层的土壤非饱和导水率反而大于底土层和表土层。
While the soil water suctions increased to some values, the unsaturated hydraulic conductivities in middle soil layers were higher than those in topsoil layers.
原状土的饱和导水率能反映田间的实际情况，对研究土壤水分平衡和水土保持有极其重要的意义。
The saturated hydraulic conductivity of undisturbed soil can represent the really case in the field and is significant to study soil moisture balance and soil water conservation.
本文简述了标定的原理、田间土壤水分特征曲线和非饱和导水率的标定方法，还给出了水分运动参数标定的实例。
In this paper, the concept and the method of scaling are described, and some examples of scaling of soil water characteristic curve and unsaturated hydraulic conductivity are given.
土壤水动力学是以土壤中水分的能态为基础研究非饱和土壤中水分、溶质和热量运移问题的学科。
Based on the energy state of soil moisture content, soil hydrodynamics studies water flow, solute and heat transport in unsaturation soil.
土壤水动力学是以土壤中水分的能态为基础研究非饱和土壤中水分、溶质和热量运移问题的学科。
Based on the energy state of soil moisture content, soil hydrodynamics studies water flow, solute and heat transport in unsaturation soil.
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