摘要: Soil properties and water dynamics play a crucial role in the function of oak woodland ranches dehesas. They are largely controlled by climate conditions, terrain morphology parent material, but also land use management. We review results obtained from research carried out California Spain on topics related to soil quality, degradation, dynamics. Of particular interest is gaining understanding influence land-use management practices. The distribution vegetation produces spatial temporal variation that described detail. trees content discussed catchment hydrology presented, for both Spanish cases. An important characteristic high variability precipitation, with occurrence prolonged dry periods (droughts) affect availability plants. On effects two-fold, influencing pasture productivity resources livestock rearing. Soils dehesas have been subject degradational processes as consequence centuries agricultural use. Water erosion resulting reduction organic matter physical degradation most phenomena. For California, much shorter history plowing grazing, we present studies quality conversion yield, stability erosion.

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