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RESEARCH PRODUCT
Do stones modify the spatial distribution of fire induced soil water repellency? Preliminary data
Jorge García MorenoÁNgel J. Gordillo RiveroJuan Gil TorresNicasio T. Jiménez MorilloJorge Mataix SoleraFélix ÁNgel González PeñalozaArturo José Pascual GrangedG. Bárcenas MorenoPatricia Jiménez PinillaElena Lozano GuardiolaAntonio Jordán LópezLorena María Martínez Zavalasubject
Experimental burnSubritical soilSoil structureExperimental burn Soil structure Subritical soil water repellency Surface stoneswater repellencySurface stonesdescription
Water repellency is a property of many fire-affected soils that contributes to delayed wetting rates and shows many hydrological and geomorphological consequences. Fire-induced soil water repellency (SWR) may be modulated by pre-fire soil and vegetation properties. Many studies have been carried out to investigate the relationship between SWR and these properties. But, to our knowledge, no studies have considered the effect of surface stones in the spatial distribution of fire-induced SWR. In this research, we study the occurrence and spatial and vertical distribution of SWR and its consequences on soil structure after experimental burning in a previously wettable soil under different stone covers (0, 15, 30, 45 and 60%). In our experiment, burning induced critical or subcritical SWR in the upper millimetres of previously wettable soil. Fire-induced SWR did not vary with stone cover, but critical SWR was reached in inter-stone soil areas. At stone-covered soil areas, SWR was increased, but WDPTs remained mostly below the 5 s threshold Ministerio de Economía y Competitividad CGL2010- 21670-C02-01
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-01-01 |