Influence of tree and occasional cropping on soil organic carbon and its fractionation in dehesa system


Abstract:

Dehesa is a multipurpose agro-silvo-pastoral system used primarily for livestock, and covers around 4 million ha in southern Spain. The dehesa vegetation features oak trees spread in low density without a regular pattern over a pastures/crops understorey. Soil quality can be analysed by concentration of soil organic carbon (SOC) and its distribution in different pools. Previous studies indicate that dehesas have high soil quality and that management practices, spatial patterns, topography, and tree presence affect SOC storage and distribution. Specifically, SOC was reasonably high beneath tree and reduced with depth. Below the depth of 30 cm, the carbon content has not been well defined. The objective of this work was to determine SOC concentration and fractionation in two different dehesas, analysing the effect of depth, management and tree presence. The first area was a pasture dehesa with young holm oaks …

Año de publicación:

2018

Keywords:

    Fuente:

    googlegoogle

    Tipo de documento:

    Other

    Estado:

    Acceso abierto

    Áreas de conocimiento:

    • Agricultura

    Áreas temáticas:

    • Técnicas, equipos y materiales