| 1. | Test methods for permeability of saturated soils
饱和土壤渗透率的试验方法 |
| 2. | Simulation of heat and mass transfer in unsaturated soil under solar radiation and air convection
大气对流下未饱和土壤中热质迁移过程的实时仿真研究 |
| 3. | Stochastic modelling of chloride travel in heterogeneous saturated soils under the condition of preferential flow
非均质饱和土壤盐分优先运移的随机模拟 |
| 4. | Impacts of storativity and porosity on the head potential fluctuation are investigated in this paper
本文也同时检查饱和土壤储水系数及孔隙率对地下水水头扰动的影响。 |
| 5. | 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。 |
| 6. | It is found , in one - dimensional subsurface flows , that porosity and storativity play an important role in the propagation of the head potential fluctuation
由研究发现，一维地下水层中，受扰动地下水水头的传递快慢受饱和土壤储水系数及有效孔隙率的影响。 |
| 7. | 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。 |
| 8. | And no3 - - n can be leached to soil layer below die wetting depth . the convection - dispersion equation with the retardation coefficient yield by method has been adopted to model nh4 - - n transport in saturated soil , simulation results are compared well with experimental results
基于批平衡得到nh _ 4 ~ + ? n的吸附延迟系数，利用对流一弥散方程模拟nh _ 4 ~ + ? n在饱和土壤中的迁移过程，模拟结果与试验结果吻合较好。 |
| 9. | 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。 |
| 10. | 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 |
