| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Institut für Bodenforschung, ZALF, Wilhelm-Pieck-Str. 72, O-1278 Müncheberg, Germany
Institut für Pflanzenbau und Pflanzenzüchtung, Universität Göttingen, von Siebold-Str. 8, 3400 Göttingen, Germany
Hydrologic Science, Dep. of Land, Air and Water Resources, Univ. of California, Davis, CA 95616
The Winand Staring Centre for Integrated Land, Soil and Water Research, P.O. Box 125, 6700 AC Wageningen, The Netherlands
*Corresponding author.
ABSTRACT
Understanding of soil water and solute transport processes requires knowledge of the soil hydraulic properties. A simple evaporation method for the determination of the hydraulic conductivity function and the water retention characteristic was developed and applied to a range of soils with different texture and structure. During evaporation from the top of a 6-cm-high soil core, soil water pressure head at 1.5 and 4.5 cm below the soil surface was measured with tensiometers several times. At the same time, evaporative water loss was determined by weighing the soil column. The procedure for calculation of hydraulic functions was evaluated via numerical simulations. Results from the numerical experiment confirm the underlying theory. A limitation of the evaporation method is the fact that, at water contents near saturation where hydraulic conductivity is high, hydraulic gradients cannot be determined with sufficient accuracy. Other measurement techniques are suggested that can supplement the evaporation method in the wet range.
Received for publication June 24, 1992.
This article has been cited by other articles:
|
|
 |
|
  K. Schwarzel, J. Simunek, H. Stoffregen, G. Wessolek, and M. Th. van Genuchten Estimation of the Unsaturated Hydraulic Conductivity of Peat Soils: Laboratory versus Field Data Vadose Zone J., May 26, 2006; 5(2): 628 - 640. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
O. Wendroth, S. Koszinski, and E. Pena-Yewtukhiv Spatial Association among Soil Hydraulic Properties, Soil Texture, and Geoelectrical Resistivity Vadose Zone J., March 8, 2006; 5(1): 341 - 355. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 K. Wang, R. Zhang, and F. Wang Testing the Pore-Solid Fractal Model for the Soil Water Retention Function Soil Sci. Soc. Am. J., May 6, 2005; 69(3): 776 - 782. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. G. Meadows, M. H. Young, and E. V. McDonald A Laboratory Method for Determining the Unsaturated Hydraulic Properties of Soil Peds Soil Sci. Soc. Am. J., May 6, 2005; 69(3): 807 - 815. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Naasz, J.-C. Michel, and S. Charpentier Measuring Hysteretic Hydraulic Properties of Peat and Pine Bark using a Transient Method Soil Sci. Soc. Am. J., January 1, 2005; 69(1): 13 - 22. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. Garnier, N. Ezzine, S. De Gryze, and G. Richard Hydraulic Properties of Soil-Straw Mixtures Vadose Zone J., May 1, 2004; 3(2): 714 - 721. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H. Fujimaki, H. Fujimaki, and M. Inoue A Transient Evaporation Method for Determining Soil Hydraulic Properties at Low Pressure Vadose Zone J., August 1, 2003; 2(3): 400 - 408. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H. Fujimaki, H. Fujimaki, and M. Inoue Reevaluation of the Multistep Outflow Method for Determining Unsaturated Hydraulic Conductivity Vadose Zone J., August 1, 2003; 2(3): 409 - 415. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. Bruckler, P. Bertuzzi, R. Angulo-Jaramillo, and S. Ruy Testing an Infiltration Method for Estimating Soil Hydraulic Properties in the Laboratory Soil Sci. Soc. Am. J., March 1, 2002; 66(2): 384 - 395. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. Wildenschild, J.W. Hopmans, and J. Simunek Flow Rate Dependence of Soil Hydraulic Characteristics Soil Sci. Soc. Am. J., January 1, 2001; 65(1): 35 - 48. [Abstract] [Full Text]
|
|
|
|
|
|
G. Richard, J.F. Sillon, and O. Marloie Comparison of Inverse and Direct Evaporation Methods for Estimating Soil Hydraulic Properties under Different Tillage Practices Soil Sci. Soc. Am. J., January 1, 2001; 65(1): 215 - 224. [Abstract] [Full Text]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Crop Science | |||
| Journal of Natural Resources and Life Sciences Education |
Vadose Zone Journal | ||||
| Journal of Plant Registrations | Journal of Environmental Quality |
The Plant Genome | |||
