论文部分内容阅读
为表征土壤优先流的快速非平衡运动、更准确地预测非饱和带土壤中的水流运动和溶质运移过程,该文在活动流场模型基本理论和土壤优先流表现出的分形特征的基础上,将分形理论引入到连续性模型,根据质量守恒原理建立了描述土壤优先流形式下水流运动和溶质运移过程的控制方程,发展和完善了活动流场模型理论;对比分析了活动流场模型理论与二域模型理论和活动裂隙模型理论之间的联系和区别。研究成果为运用活动流场模型解决优先流条件下土壤水流运动和溶质运移等相关问题提供了参考。
In order to characterize rapid non-equilibrium movement of soil preferential flow and to predict more accurately the process of water flow and solute transport in unsaturated soil, based on the basic theory of flow field model and the fractal characteristics of soil preferential flow , The fractal theory is introduced into the continuity model. According to the principle of mass conservation, a control equation describing the flow and solute transport processes under soil preferential flow is established, and the activity flow field model is developed and perfected. The flow field model The connection and difference between theory and theory of two-domain model and theory of active fracture model. The research results provide references for the application of the flow field model to solve the problems of soil water flow and solute transport under the preferential flow conditions.