Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Soil Moisture Availability for Transpiration.
Author Mol, F. J. ; Remso, Irwin ; Fungarol, A. A. ; Drak, R. I. ;
CORP Author Drexel Inst. of Tech., Philadelphia, Pa.
Year Published 1968
Stock Number PB-217 393
Additional Subjects ( Transpiration ; Soil water) ; Mathematical models ; Moisture ;
Library Call Number Additional Info Location Last
NTIS  PB-217 393 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 29p
Potential transpiration is a measure of the rate at which water can be transmitted from evaporation sites in plant leaves to the atmosphere. Potential soil-moisture availability is defined as a measure of the capacity of a soil to transmit water to a root site. A differential equation is presented describing radial flow of soil moisture to a single vertical sink (root) in an infinite soil mass which is initially at a uniform moisture content. The relationship between moisture content and diffusivity for the soils studied may be represented by an exponential function. A numerical solution of the differential equation is used to determine the soil-moisture flux. (Author Modified Abstract)