 |
| Titel |
Coupling X-ray microtomography and macroscopic soil measurements: a method to enhance near-saturation functions? |
| VerfasserIn |
E. Beckers, E. Plougonven, N. Gigot, A. Léonard, C. Roisin, Y. Brostaux, A. Degré |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1027-5606
|
| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 18, no. 5 ; Nr. 18, no. 5 (2014-05-20), S.1805-1817 |
| Datensatznummer |
250120359
|
| Publikation (Nr.) |
 copernicus.org/hess-18-1805-2014.pdf |
|
|
|
|
|
| Zusammenfassung |
| Agricultural management practices influence soil structure, but the
characterization of these modifications and consequences are still not
completely understood. In this study, we combine X-ray microtomography with
retention and hydraulic conductivity measurements in the context of tillage
simplification. First, this association is used to validate microtomography
information with a quick scan method. Secondly, X-ray microtomography is
used to increase our knowledge of soil structural differences. Notably, we
show a good match for retention and conductivity functions between
macroscopic measurements and microtomographic information. Microtomography
refines the shape of the retention function, highlighting the presence of a
secondary pore system in our soils. Analysis of structural parameters for
these pores appears to be of interest and offers additional clues for soil
structure differentiation, through – among others – connectivity and
tortuosity parameters. These elements make microtomography a highly
competitive instrument for routine soil characterization. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|