降雨条件下旱地土壤水分运动的数值模拟  

Numerical Simulation of Soil-Water Movement of Upland Field with Rainfall

作　　者：余艳玲[1] 熊耀湘[1] 文俊[1] 

机构地区：[1]云南农业大学水利水电与建筑学院,云南昆明650201

出　　处：《中国农村水利水电》2003年第11期19-21,共3页China Rural Water and Hydropower

基　　金：云南省科技攻关课题部分内容 (95A7- 5)

摘　　要：以土壤水动力学原理为基础 ,研究降雨条件下旱地土壤水分的运动规律 ,建立了一维垂直非饱和土壤水分运动的数学模型 ,采用有限差分法FDM求解数学模型。模型检验表明 ,试验实测数据与模型计算值吻合较好 。On the basis of soil-water dynamics, soil-water movement rules in upland field with rainfall are researched, and a one-dimensional vertical unsaturated soil-water movement mathematic model is established. Finite difference method is used in solving the mathematic model. The results of model verification show that the results of numerical simulation of the model agree very well with the data observed. Therefore, the model established is feasible.

关 键 词：土壤水分运动 数值模拟 数学模型 有限差分法 降雨 

分 类 号：S152.72[农业科学—土壤学]