Variabilidade espacial dos atributos físicos em sistemas agroflorestais

Abstract

The use of agroforestry systems (SAFs) enables production and is the sustainable alternative for family agriculture, as it promotes a variety of products to be commercialized, besides being a natural environment with increased diversity. In this sense, the objective was to evaluate the spatial variability of soil physical attributes in two SAF's. The study was conducted in the region of São Sebastião de Passé-BA. The agroforestry systems under study come from different implantation periods and species used, with SAF1 with 22 years of implantation and SAF2 with 13 years. The soil physical attributes were: saturated hydraulic conductivity, total porosity, microporosity, macroporosity, particle density, soil density, volumetric moisture content, dry matter content, soil penetration resistance and particle size analysis. The physical attributes data were submitted to the spatial variability analysis from the GS + version 5. The spatial dependence structure was verified for all attributes as strong and for soil resistance to penetration in SAF 1 as moderate.