Soil chemical attributes in a high biodiversity silvopastoral system ; Atributos químicos del suelo en un sistema silvopastoril de alta biodiversidad

The use of conservation managements such as the silvopastoral system, and the Voisin rational grazing system have been excellent alternatives to increase animal welfare and production efficiency and improve soil chemical attributes of degraded pastures. Therefore, the objective of this work was to evaluatethe effect of a High Biodiversity Silvopastoral System (SPSNUCLEUS) on the soil chemical attributes through comparisons with soils of a Management Intensive Grazing without trees (MIG), primary forest, and secondary forest areas. Total organic carbon, total nitrogen, pH, Al, H+Al, Ca, Mg, K, and P were evaluated after four years of implementation of SPSNUCLEUS. Soil samples from the layers 0-5, 5-10, 10-20, 20-30, and 30-40 cm were collected in all areas—SPSNUCLEUS, MIG, primary forest, and secondary forest. SPSNUCLEUS had better soil quality, with increased P and K contents (0-30 cm), compared to the other areas, and higher total organic carbon,and total nitrogen contents (5-30 cm) when compared to the MIG and secondary forest areas. The soil carbon accumulation capacity in the SPSNUCLEUS area in the layers of 5-10 cm and 20-40 cm was similar to that of the primary forest area, and higher to those of the other areas. SPSNUCLEUS proved to be a promising system to improve the soil chemical attributes of pastures. ; La utilización de sistemas de manejo conservacionistas como los sistemas silvopastoriles y el pastoreo racional Voisin se han mostrado óptimas alternativas para promover mayor bienestar animal, aumentar la eficiencia del sistema de producción y mejorar los atributos químicos de los suelos de pastoreo degradados. En este sentido, este trabajo evaluó el efecto del Sistema Silvopastoril con Núcleos arbóreos de alta biodiversidad (SSPNÚCLEOS) en la dinámica de los atributos químicos del suelo, comparando con pastoreo racional Voisin sin árboles (PRV), áreas de bosque primario y bosque secundario adyacentes. En el presente estudio se evaluaron los niveles de carbono orgánico total, nitrógeno total, pH, Al, ...