Details
| Original language | English |
|---|---|
| Pages (from-to) | 239-251 |
| Number of pages | 13 |
| Journal | European journal of soil science |
| Volume | 56 |
| Issue number | 2 |
| Publication status | Published - Apr 2005 |
Abstract
Water repellency can be a significant factor in soil physical behaviour, but little is known about the depth dependence of the contact angle of field soils. We investigated contact angles and wetting properties as a function of depth for a wide range of agricultural and forest soils in Germany. The agricultural soils ranged from silty to sandy texture (six profiles), and the forest soils ranged from sandy to loamy texture (eight profiles). Contact angles (CA) were measured with the Wilhelmy plate method (WPM). In most of the soils, advancing WPM contact angles were considerably greater than 0° and they varied irregularly with depth. In general, sandy soils had larger WPM contact angles than silty soils. From the relation of the contact angle with texture and pH the quality of soil organic matter (SOM) was considered as more important for the wetting properties than the total amount of soil organic carbon (SOC). Finally, it was found that for soils with intermediate sand contents either under agricultural or forest use, the kind of land use seemed not to influence CA. Coarse-textured sandy soils that were used only as forest sites were more hydrophobic than silty soils which were exclusively used as agricultural soils. We conclude that a coarse texture favours, in combination with other factors (mainly pH), hydrophobic SOM.
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Soil Science
Sustainable Development Goals
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In: European journal of soil science, Vol. 56, No. 2, 04.2005, p. 239-251.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Contact angle of soils as affected by depth, texture, and land management
AU - Woche, S. K.
AU - Goebel, M. O.
AU - Kirkham, M. B.
AU - Horton, R.
AU - Van Der Ploeg, R. R.
AU - Bachmann, J.
N1 - Copyright: Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2005/4
Y1 - 2005/4
N2 - Water repellency can be a significant factor in soil physical behaviour, but little is known about the depth dependence of the contact angle of field soils. We investigated contact angles and wetting properties as a function of depth for a wide range of agricultural and forest soils in Germany. The agricultural soils ranged from silty to sandy texture (six profiles), and the forest soils ranged from sandy to loamy texture (eight profiles). Contact angles (CA) were measured with the Wilhelmy plate method (WPM). In most of the soils, advancing WPM contact angles were considerably greater than 0° and they varied irregularly with depth. In general, sandy soils had larger WPM contact angles than silty soils. From the relation of the contact angle with texture and pH the quality of soil organic matter (SOM) was considered as more important for the wetting properties than the total amount of soil organic carbon (SOC). Finally, it was found that for soils with intermediate sand contents either under agricultural or forest use, the kind of land use seemed not to influence CA. Coarse-textured sandy soils that were used only as forest sites were more hydrophobic than silty soils which were exclusively used as agricultural soils. We conclude that a coarse texture favours, in combination with other factors (mainly pH), hydrophobic SOM.
AB - Water repellency can be a significant factor in soil physical behaviour, but little is known about the depth dependence of the contact angle of field soils. We investigated contact angles and wetting properties as a function of depth for a wide range of agricultural and forest soils in Germany. The agricultural soils ranged from silty to sandy texture (six profiles), and the forest soils ranged from sandy to loamy texture (eight profiles). Contact angles (CA) were measured with the Wilhelmy plate method (WPM). In most of the soils, advancing WPM contact angles were considerably greater than 0° and they varied irregularly with depth. In general, sandy soils had larger WPM contact angles than silty soils. From the relation of the contact angle with texture and pH the quality of soil organic matter (SOM) was considered as more important for the wetting properties than the total amount of soil organic carbon (SOC). Finally, it was found that for soils with intermediate sand contents either under agricultural or forest use, the kind of land use seemed not to influence CA. Coarse-textured sandy soils that were used only as forest sites were more hydrophobic than silty soils which were exclusively used as agricultural soils. We conclude that a coarse texture favours, in combination with other factors (mainly pH), hydrophobic SOM.
UR - http://www.scopus.com/inward/record.url?scp=15444366628&partnerID=8YFLogxK
U2 - 10.1111/j.1365-2389.2004.00664.x
DO - 10.1111/j.1365-2389.2004.00664.x
M3 - Article
AN - SCOPUS:15444366628
VL - 56
SP - 239
EP - 251
JO - European journal of soil science
JF - European journal of soil science
SN - 1351-0754
IS - 2
ER -