Sustitución de la sabana nativa con plantaciones de Pinus caribaea(Pinaceae) en Venezuela: efecto sobre parámetros indicadores de cambios en el carbono del suelo ; Sustitución de la sabana nativa con plantaciones de Pinus caribaea (Pinaceae) en Venezuela: efecto sobre parámetros indicadores de cambios en el carbono del suelo

A great extension (615 000 ha) of native savan-nas of the eastern plains of Venezuela have been replaced by plantations of Pinus caribaea var. hondurensis; however, only scarce information exists about the impact of this land use on carbon dynamics in soils. We studied the effect of temporal variability and the substitution on the total organic carbon (TOC), water-soluble carbon (WSC), microbial biomass C (Cmic), basal respiration (BR), microbial metabolic quotient (qCO2) and Cmic/Corg ratio. Selected chemical properties and biological parameters of soils were measured under 3 and 29 year old... Mehr ...