Contributions: Introduction.- The effect of fire on soil quality.- Effects of slashburning on some soil physical properties in an olm-oak.- Short-term changes on aggregate stability and organic matter content after forest fire in a calcareous soil in Valencia.- Forest fire effect on soil chemical properties and runoff.- Changes of the physical and chemical properties in a soil affected by forest fire in Sierra Larga (Murcia).- Long term effects of forest fires on soil erosion and nutrient losses.- Runoff and erosion from burnt soils in Northwest Spain.- An example of the changes in the hydrological and erosional response curves in eucalpytus and pine forests, North-Central Portugal.- Soil loss from erosion plots of differing post fire forest cover, Portugal.- Post fire evolution of runoff and erosion during an eighteen month period.- Action of the forest fires on vegetation cover and soil erodibility.- Regeneration of Mediterranean maquis after the passage of an experimental fire.- Pedological effects of reforestation in burnt forest areas.- A simulation model of soil heating during simulated wildland fire conditions, etc...