Determination of small-scale spatial heterogeneity of water repellency in sandy Soils

verfasst von

A. Lamparter, J. Bachmann, S. K. Woche

Abstract

The degree of water repellency in soils is commonly- characterized by the contact angle (CA). For its determination, disturbed and homogenized soil samples are used. Thus, information about the small-scale spatial heterogeneity of soil water repellency is lost. We modified the sampling technique of the sessile drop method to allow the determination of the CA on particles located at their original positions, reflecting the natural wetting properties of the site. The proposed preparation technique further allows the determination of small-scale variability of water repellency (millimeter to centimeter scales) along transects with a length of approximately 1 m or more. Hence, the small-scale spatial distribution of water repellency within a soil profile or transect can be determined and its impact on physical, biological, or chemical processes in soil can be evaluated.

Organisationseinheit(en)

Institut für Bodenkunde
AG Bodenphysik

Typ

Artikel

Journal

Soil Science Society of America Journal

Band

74

Seiten

2010-2012

Anzahl der Seiten

3

ISSN

0361-5995

Publikationsdatum

11.2010

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Bodenkunde

Elektronische Version(en)

https://doi.org/10.2136/sssaj2010.0082N (Zugang: Unbekannt)