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Soil Moisture Simulation under Cropped Condition Using a Moisture Dependent Root Sink Function
Author(s) -
Malik R. K.,
Murty V. V. N.,
Narda N. K.
Publication year - 1988
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.1988.tb00650.x
Subject(s) - moisture , permanent wilting point , water content , soil science , sink (geography) , environmental science , field capacity , agronomy , soil water , geotechnical engineering , materials science , geology , biology , cartography , geography , composite material
Moisture dependent root sink function developed by F eddes et al. (1976) which incorporates linearly varying moisture availability proposal between field capacity and wilting point was embedded in the continuity equation for transient moisture flow in conjunction with Darcy's law and moisture contents in a homogeneous soil profile under wheat cropped condition were simulated numerically using implicit finite difference scheme. Simulated moisture contents were observed to be reasonably in good agreement with the observed moisture contents as the variations between the simulated and observed values varied from 2.97 to 21.76 percent.