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RESEARCH PRODUCT

Short-term changes in infiltration between straw mulched and non-mulched soils after wildfire in Mediterranean forest ecosystems

Artemio CerdàJavier CózarManuel Esteban Lucas-borjaPedro Antonio Plaza-álvarezJorge De Las HerasBruno Gianmarco CarràDemetrio Antonio ZemaJ. González-romeroDaniel Moya

subject

Environmental Engineering010504 meteorology & atmospheric sciencesSòls Erosió04 agricultural and veterinary sciencesManagement Monitoring Policy and LawStraw01 natural sciencesAridcomplex mixturesInfiltration (hydrology)AgronomyHydraulic conductivityLoamSoil water040103 agronomy & agriculture0401 agriculture forestry and fisheriesEnvironmental scienceSurface runoffWater content0105 earth and related environmental sciencesNature and Landscape Conservation

description

Abstract Water infiltration is a basic parameter to understand the hydrological response of semi-arid or arid soils – where runoff generation is dominated by infiltration-excess – subjected to wildfire. To evaluate the hydrological effects of straw application on a sandy loam soil after wildfire, the unsaturated hydraulic conductivity, water content and temperature of mulched and nonmulched (considered as control) soils were monitored throughout eight months. Compared to untreated soils, straw maintained higher temperatures and water contents in mulched plots, but reduced their unsaturated hydraulic conductivity, particularly in the drier season. These results suggest that straw release may lead to a decrease of water infiltration capacity of soils subjected to wildfire, with particular evidence in summer in the case of heavy storm occurrence.

10.1016/j.ecoleng.2018.07.018https://hdl.handle.net/10550/72830