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 Author(s): BRUAND, A.; BRAGA, A. R. dos S.; MARTINS, E. de S. Ferralsols, which are estimated to cover 7.5 millions km² worldwide, are deeply weathered red or yellow soils found in the humid tropics. They are considered as the end of a geochemical sequence of we... ... |
 Author(s): SOUZA JUNIOR, V. S. de; NEVES, L. V. de M. W.; SANTOS, J. C. B. dos; ARAUJO FILHO, J. C. de; CORREA, M. M.; SILVA, L. F. I. da The objective of this work was study the evolution of the weathering front in gneiss saprolites (felsic rocks) in two profiles of Planosols under different levels of severity of degradation (point 1 i... ... |
 Author(s): OLIVEIRA, F.; SCHAEFER, C.; ABRAHÃO, W.; ALMEIDA, E. de P. C.; SIMAS, F. The formation of highly phosphatized soils on sites of avian activity is a common feature of oceanic islands. We characterized a toposequence of phosphatic soils on Rata Island, to evaluate the soil g... ... |
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