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espanolLos sistemas silvopastoriles juegan un papel importante en la recuperacion de suelos degradados y en la mitigacion de los gases de efecto invernadero, debido a su capacidad para capturar el carbono atmosferico e inmovilizarlo en el suelo. Para estimar el potencial de los sistemas silvopastoriles para incorporar carbono al suelo, se evaluaron 4 sistemas de diferente grado de complejidad estructural, frente a una pastura sin arboles, en un sistema ganadero del Caribe Colombiano. Las evaluaciones incluyeron mediciones de la cantidad de carbono organico acumulado, las propiedades fisicas del suelo como densidad aparente y resistencia mecanica a la penetracion, y la biomasa de raices finas. Los resultados mostraron que en promedio los arreglos silvopastoriles presentaron una acumulacion de carbono que vario entre 60,6 y 65,1 t.ha-1 de C, en comparacion con el sistema tradicional ganadero, de pasturas sin arboles, en el cual se detecto una acumulacion de 38,3 t.ha-1 de C. Lo anterior, representa una acumulacion de carbono que es entre 58,2 y 69,9% superior en los sistemas silvopastoriles, comparada con el sistema tradicional de produccion ganadera, basada en solo pasturas. Igualmente, se observo una reduccion en la densidad aparente del suelo y la resistencia a la penetracion de las raices, concomitantes con una mayor presencia de raices finas en los sistemas silvopastoriles, en comparacion con lo observado en el suelo de la pastura sin arboles. Estos resultados demuestran los efectos beneficos de los sistemas silvopastoriles en la incorporacion del carbono al suelo y representan una alternativa viable para el establecimiento de una ganaderia mas sostenible en el Caribe Colombiano. EnglishThe silvopastoral systems play an important role in the recovery of degraded soils and in the mitigation of greenhouse gases, due to their capacity to capture atmospheric carbon and immobilize it in the soil. To estimate the potential of silvopastoral systems to incorporate carbon into the soil, 4 silvopastoral systems with different degrees of structural complexity were evaluated against a treeless pasture in a Colombian Caribbean livestock system. The evaluations included measurements of the amount of organic carbon accumulated, the physical properties of the soil as apparent density and mechanical resistance to penetration, and the biomass of fine roots. The results showed that on average the silvopastoral arrangements showed a carbon accumulation that varied between 60.6 and 65.1 t.ha-1 of C, in comparison with the traditional livestock system, of treeless pastures, in which an accumulation of 38.3 t.ha-1 of C. This represents an accumulation of carbon that is between 58.2 and 69.9% higher in silvopastoral systems, compared with the traditional system of livestock production, based on only pastures. Likewise, a reduction in the apparent density of the soil and resistance to root penetration was observed, concomitant with a greater presence of fine roots in the silvopastoral systems, in comparison with what was observed in the soil of the treeless pasture. These results demonstrate the beneficial effects of silvopastoral systems on the incorporation of carbon into the soil and represent a viable alternative for the establishment of a more sustainable livestock in the Colombian Caribbean.

Evaluación del carbono acumulado en suelo en sistemas silvopastoriles del Caribe Colombiano