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1987•Water Resources ResearchRequires access

Modeling of evapotranspiration from homogenous soils

M. S. Markar, Russell G Mein

Open publisher page 10 citations

Abstract

A sink term to simulate the removal of water by transpiration from the soil profile has been added to the moisture flow model of Clapp (1982). The resultant model gives results comparable to those obtained from a finite difference solution of the Richards equation modified for transpiration, but uses only about 5% of the computer time. Example applications show that the model is capable of predicting evapotranspiration rates from homogenous soils without using fitted parameters.

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What this paper is about

A sink term to simulate the removal of water by transpiration from the soil profile has been added to the moisture flow model of Clapp (1982). The resultant model gives results comparable to those obtained from a finite difference solution of the Richards equation modified for transpiration, but uses only about 5% of the computer time. Example applications show that the model is capable of predicting evapotranspiration rates from homogenous soils without using fitted parameters.

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OpenAlex reports 10 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A sink term to simulate the removal of water by transpiration from the soil profile has been added to the moisture flow model of Clapp (1982). The resultant model gives results comparable to those obtained from a finite difference solution of the Richards equation modified for transpiration, but uses only about 5% of the computer time. Example applications show that the model is capable of predicting evapotranspiration rates from homogenous soils without using fitted parameters.

Key concepts: Evapotranspiration, Transpiration, Soil water, Richards equation, Sink (geography), Environmental science, Soil science, Water content

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