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| Titel |
Effect of wetting-drying cycles and fire conditions on runoff and soil loss of a Mediterranean Pale Rendzina |
| VerfasserIn |
Marcos Lado, Assaf Inbar, Haim Tenaw, Marcelo Stenberg, Meni Ben-Hur |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250082988
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| Zusammenfassung |
| Wetting and drying cycles have been reported to have a positive effect on soil aggregation and improve the recovery of soil structure after a disturbance. Therefore, after wildfires, it is expected that drying periods between consecutive storms could modify runoff and soil loss patterns. At the same time, different fire conditions may coexist in a location during a wildfire, creating a mosaic of soils affected to different degrees. The objective of this study was to analyze the effect of wetting-drying cycles and various fire conditions on infiltration rate, runoff and soil loss of a Mediterranean soil. Samples from a Pale Rendzina from Birya forest in Northern Israel were subjected to treatments representing some of the soil disturbances that may coexist after a wildfire: unburnt (UB-soil, i.e. not affected by fire); low-moderate severity direct fire (direct fire-DF soil) and; prolonged heating under moderate temperature without direct contact with the flames (oven heated-HT soil). Each soil was placed under a rainfall simulator and exposed to three 80-mm storms separated by drying periods of 72h. Significant differences were found between fire conditions in infiltration rate, runoff and soil loss. Runoff and soil loss were in the following order :HT
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