非饱和土壤 meaning in English
unsaturated soil
Examples
- The numerical model of one - dimensional solute transport through unsaturated soils is formulated by characteristic finite element method
建立了一维非饱和土壤中溶质运移的特征有限元数值模型。 - Using the convective - dispersive equation and based on labo ratory exp eriment , the hydrodynamic dispersion coefficient of unsaturated soil is determi n ed under different inial soil water content , different manner of water infiltra t ion and fertilizer supply
用非饱和土壤水动力弥散方程及其解析解，在室内试验的基础上，研究了非饱和土壤在不同初始含水量、不同入渗方式及不同加肥方式下的水动力弥散系数。 - Abstract : using the convective - dispersive equation and based on labo ratory exp eriment , the hydrodynamic dispersion coefficient of unsaturated soil is determi n ed under different inial soil water content , different manner of water infiltra t ion and fertilizer supply
文摘:用非饱和土壤水动力弥散方程及其解析解，在室内试验的基础上，研究了非饱和土壤在不同初始含水量、不同入渗方式及不同加肥方式下的水动力弥散系数。 - Beven 18 suggested that when it is applied in its original form to a river basin with thin soils over an imperme - able base , the quasi - steady state approximation holds . however , he also noted that for a variety of alternative transmissivity profiles , or when the saturated depth of the aquifer is large , the deviation in the actual shape of the water table from a steady - state shape can be both large enough and last long enough to call into question the assumption of quasi - steady dynamics
Beven 18也也指出这种“拟稳定”的地下径流机制虽然能够较好地应用于那些不透水层之上的土壤厚度比较薄的流域,但对于那些非饱和土壤层的厚度随空间的变化较大也就是地下水位的变化比较大,或者潜水面的厚度较大的流域,使用这种“拟线性”的topmodel地下径流机制就容易产生问题 - Subsurface runoff is obviously closely related with soil water movement in the unsaturated soil zone and dynamic change of the groundwater table . there - fore , it is necessary to develop the subsurface runoff model with a physical base associated with recharge on the aquifer and total storage in the reservoir . also a soil model with a dynamic representation of the groundwater table makes it possible and reasonable to represent a more logical subsurface runoff parame - terization
地下径流显然与非饱和土壤层中的水分运动以及地下水位的动态变化密切相关,因而有必要发展考虑土壤含水量与潜水面science in china ser . d earth sciences 376中国科学d辑地球科学第36卷水分通量以及地下水位动态变化的土壤水模型相适应且具有物理意义的地下径流模型;同时地下水位动态表示的土壤水模型也为发展更为合理的地下径流模型创造了很好的条件