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

Authors
SINGH VP JOSEPH ES
Citation
Vp. Singh et Es. Joseph, KINEMATIC-WAVE MODEL FOR SOIL-MOISTURE MOVEMENT WITH PLANT-ROOT EXTRACTION, Irrigation science, 14(4), 1994, pp. 189-198
Citations number
12
Categorie Soggetti
Water Resources",Agriculture
Journal title
Irrigation science → ACNP
ISSN journal
03427188
Volume
14
Issue
4
Year of publication
1994
Pages
189 - 198
Database
ISI
SICI code
0342-7188(1994)14:4<189:KMFSMW>2.0.ZU;2-2
Abstract
A kinematic-wave model is developed for simulating the movement of soi l moisture in unsaturated soils with plants. The model involves three free boundaries. Analytical solutions are derived when the; plant root s 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 co ndition both depend on time.