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

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Web of Science (8) Citing Articles via Google Scholar Google Scholar Articles by Bachmann, J. Articles by van der Ploeg, R. R. Search for Related Content PubMed Articles by Bachmann, J. Articles by van der Ploeg, R. R. Agricola Articles by Bachmann, J. Articles by van der Ploeg, R. R.

Comparison of the thermal properties of four wettable and four water-repellent soils

^a Str. 2, 30419 Hannover, Germany
^b Dept. of Agronomy, Iowa State Univ., Ames, IA 50011
^c Soil and Fertilizer Institute, Hebei Academy of Agricultural Sciences, Hebei, China

View larger version (15K): [in a new window]   Fig. 1. Measured changes in soil temperature as a function of time at the sensor needle located 0.006 m from the heater. The heating pulse was 15 s with an energy of 21.1 W m-1.

View larger version (30K): [in a new window]   Fig. 2. Measured apparent thermal conductivity for the wettable and the hydrophobic soils. The second-order polynomial curves were determined by least squares regression.

View larger version (24K): [in a new window]   Fig. 3. Measured and de Vries model-predicted thermal conductivity values for (a) wettable and (b) water-repellent humic sandy loam soil.

View larger version (31K): [in a new window]   Fig. 4. Differences between measured and de Vries or Campbell model-predicted thermal conductivity values, measured - predicted, for the (a) wettable and the (b) hydrophobic soils. Curves indicate second-order polynomial fits determined by least squares analysis.

View larger version (22K): [in a new window]   Fig. 5. Measured volumetric heat capacities of all wettable and water-repellent soils. The two second-order polynomial curves were determined by least squares regression.