Dependência espacial de atributos granulométricos em uma transição arenito basalto em Pereira Barreto, SP.

Abstract

The objective of this work was to investigate the spatial dependence of texture attributes from sandstone/basalt from the Pereira Barreto Region, São Paulo State, Brazil. Soils samples were collected in 67 points, in a depth of 0,0-0,25 and 0,80-1,00 m, located in a 350 m regular grid corresponding the area of 530 ha. The texture attributes was determined by the method of the pipette and the tenors of sand, clay and silte they were analyzed through the descriptive statistical analysis and for the space variability, techniques geostatistics was used. It is ended that the attributes texture are distributed in the landscape in function of the disposition of the relief and of the parent material