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| Titel |
Assessment of soil surface roughness decay at semiarid field conditions using the shadow analysis method |
| VerfasserIn |
Rosario García Moreno, Antonio Paz González, Antonio Saa Requejo, José M. Duran Altisent, Ana M. Tarquis, María Cruz Díaz Álvarez |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250037963
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| Zusammenfassung |
| Soil surface roughness (SSR) is an excellent parameter to assess soil vulnerability to wind
and water erosion. Several methods are used to measure SSR depending on specific field and
climate conditions. The method based on the shadow analysis has shown to be the most
convenient technique to characterize SSR in the field than existing procedures when
used in arid and semi-arid regions of Spain. This convenience is due to climate
and soil conditions prevailing and low development and maintenance costs and
adaptability. Therefore, the present study aimed to assess the SSR decay using the
shadow analysis method at field in eight controlled plots of 1 m2. The data were
collected from beginning of fall 2009 to spring 2010. Half of the experimental
plots were covered to be used as control, to avoid influence from wind and water
erosion. The rest of the plots were uncovered to assure SSR decay and to evaluate
the parameter as the result of the produced erosion. The results showed marked
differences among the cover an uncover plots. The parameters demonstrated that the
method can be used to study the influence of wind and water erosion on soil at field
conditions, although some adjustments must be done on method since it presents some
limitations, mainly related to weather conditions when used continuously at field
conditions. |
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