 |
| Titel |
Soil Surface Variability in Relation to Microstructure |
| VerfasserIn |
Rosario García Moreno, John W. Crawford, Timur Burykin |
| Konferenz |
EGU General Assembly 2011
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250046275
|
|
|
|
|
|
| Zusammenfassung |
| Soil surface and inner microstructure are highly suited indicators to evaluate most of the
physical, chemical and biological processes on soils, and determine the potential for
degradation and recovery of soils. Soil microstructure is highly characterised by
management practices and erosion processes. For that reason, the relation between
surface and inner soil microstructure could determine the degree of potential of soil
degradation. To know the influence of management and textural classes on soil
microstructure, several measurements where taken determining soil surface roughness (SSR)
with shadow analysis method from tilled plots in two different farms belonging to
the Plant Breeding Institute of University of Sidney. Soil surface roughness was
measured using the shadow analysis method for sub plots measuring 1 m2; taken
measurements from North, West and South directions. Further in order to evaluate
inner structure, soils samples from the plots were scanned using x-ray computed
tomography imaged soil structures with 5 μm resolutions. Samples comprised 2 mm
in diameter and 4 mm height. The results showed a great correlation among the
soil surface roughness and the pore space and organic matter content of soil core. |
|
|
|
|
|
|