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Causes of morphological discontinuities in soils of Depressão Central, Rio Grande do Sul State, Brazil Scientia Agricola
Michelon,Cristiane Regina; Azevedo,Antonio Carlos de; Pedron,Fabrício de Araújo; Dalmolin,Ricardo Simão Diniz; Stürmmer,Sidinei Klochnner; Gonçalves,Juliana; Jesus,Sérgio Luis de.
Morphological, particularly textural, discontinuities between horizons increase soil erodibility in Depressão Central, Rio Grande do Sul State (Brazil). Characterization of such discontinuities would help to understand landscape evolution and to model near-surface hydrology. The objective of this research was to explore the relationship between morphological discontinuity and deposition of transported materials during pedogenesis. Transported material was meant to be mineral particles found in the soil profile, transported probably by water or gravity, that were not present neither in the parent material nor derived from it. Five soils of this region (two Alfisols, two Ultisols and one Mollisol) were sampled and morphological, sand grain size statistics,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil morphology; Subtropical soils; Soil discontinuity.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000300010
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