La Scala, N. [UNESP]Panosso, A. R. [UNESP]Pereira, G. T. [UNESP]Gonzalez, A. P.Miranda, J. G. V.2014-05-202014-05-202009-01-01International Agrophysics. Lublin: Polish Acad Sciences, v. 23, n. 4, p. 353-358, 2009.0236-8722http://hdl.handle.net/11449/41667The study of soil CO2 emission is a relevant task due to the fact that it is related to many environmental issues, especially the enhanced greenhouse effect. In this work we investigated the spatial variability structure of a bare soil CO2 emission in an area of 80 x 80 m, during twelve different days. Spatial and temporal variability analyses in the 65-point grid indicate that significant spatial heterogeneity is present in most of the days. Fractal dimension values varying from 2 to 2.88 was determined in a direction of 84.3 +/- 22.5 degrees, which is close to perpendicular of crop lines. This effect seems to be related to the structure of temporal variability of Soil CO2 emission, which presents a complex net of correlation with 83% of grid points connected within the same cluster, also with most of the points aligned perpendicular to crop lines.353-358engSoil respirationSoil CO2 fluxSpatial variabilitygreenhouse gasArtigoWOS:000273219000006Acesso aberto14496059285375337053426037771460