KINEMATIC-WAVE MODEL FOR SOIL-MOISTURE MOVEMENT WITH PLANT-ROOT EXTRACTION

被引：11

作者：

SINGH, VP ^{[1
]}

JOSEPH, ES ^{[1
]}

机构：

[1] SOUTHERN UNIV,DEPT CIVIL ENGN,BATON ROUGE,LA 70813

来源：

IRRIGATION SCIENCE | 1994年 / 14卷 / 04期

关键词：

D O I：

10.1007/BF00190190

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

A kinematic-wave model is developed for simulating the movement of soil moisture in unsaturated soils with plants. The model involves three free boundaries. Analytical solutions are derived when the; plant roots are assumed to extract moisture at a constant rate and the upstream boundary condition is independent of time. Numerical solutions are the only resort when the moisture extraction and the upstream boundary condition both depend on time.

引用

页码：189 / 198

页数：10

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