Soil chemical attributes in a high biodiversity silvopastoral system

Acta Agronomica

Zin Battisti, Luiz Fernando¹ 

[1] University of Santa Catarina, Florianópolis, Brazil

关键词: Organic carbon;    Nitrogen;    Tree component;    Voisin rational grazing;    Soil fertility.;   

DOI  :  10.15446/acag.v67n4.70180

学科分类：农业科学（综合）

来源: Universidad Nacional de Colombia * Facultad de Ciencias Agropecuarias Palmira

【 摘 要 】

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 Intensive Grazing Management without trees (IGM), 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.

【 授权许可】

CC BY-NC-SA