HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Gardner, W. R. Search for Related Content PubMed Articles by Gardner, W. R. Agricola Articles by Gardner, W. R.

Diffusivity of Soil Water During Sorption as Affected by Temperature¹

ABSTRACT

The sorption diffusivity at saturation and at the air-dry water content has been measured for five soils of different textures as a function of temperature. Near saturation, the viscosity effect is predominant. At low water contents, the effect of temperature upon the suction becomes important and in some cases exceeds the viscosity effect. The hysteresis effect is often as large or larger than the temperature effect. For many purposes it may be acceptable to assume the diffusivity and capillary conductivity to be independent of temperature, at least at normal laboratory and field temperatures.

¹ Contribution from the U. S. Salinity Laboratory, Soil and Water Conservation Research Division, ARS, USDA, Riverside, Calif., in cooperation with the 17 Western States and the Territory of Hawaii.

² Physicist.

Received for publication March 23, 1959. Accepted for publication June 4, 1959.