Reappraisal of water-repellence-induced by soil organic materials in mineral soils after controlled thermal heating

4 páginas, 2 figuras, 8 referencias.-- FUEGORED 2010.-- Jornadas Internacionales celebradas del 6-10 de octubre 2010, en Santiago de Compostela, España.
The Mediterranean region is prone to frequent forest fires. To elucidate the impact of fires on environmentally relevant physical and chemical properties of the soil as well as on the chemical composition of soil organic matter an ad-hoc experiment was designed. Representative soils from Central Spain under forest (O horizon, Lithic Leptosols under Quercus ilex and Pinus pinaster) and agricultural soil (Ap horizon, Luvisol) were thermally treated; whole sol samples were isothermal heated in an electric furnace at 350 °C in three time steps up to 600 s.