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| Girão,Rodrigo de Oliveira; Moreira,Leo Jakson da Silva; Girão,Ana Leônia de Araújo; Romero,Ricardo Espíndola; Ferreira,Tiago Osório. |
| The Apodi Plateau, located in the northeastern part of the state of Ceará in Brazil, has limestone as its parent material, with significant variation in the soils formed in this region, as well as the presence of iron nodules, having been identified. The iron oxides have been used as indicators for evaluating the weathering processes of some soils, with the nodules being sources of information about pedogenic processes. Seeking to evaluate the influence of the karstic parent material and of the iron nodules on soil genesis in the Apodi Plateau, the morphological, physical and chemical properties of five profiles were evaluated, as well as of the iron nodules present in some horizons. The profiles were classified as RED-YELLOW ARGISOL Abruptic eutrophic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pedogenic processes; Limestone; Soil classification. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000400006 |
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| Silva,Luís Fernando da; Nascimento,Paulo César do; Inda,Alberto Vasconcellos; Silva,Edsleine Ribeiro. |
| ABSTRACTKnowledge of soil characteristics in areas where activities related to the environment are developed, such as Porto Alegre Botanical Garden (JB-PoA), is a fundamental condition for the sustainable use of this natural resource. The objective of this study was to characterize, classify and evaluate some issues about soil formation in Porto Alegre Botanical Garden, as well as relate their distribution on the landscape according to environmental characteristics. For the morphological description and collecting samples four profiles were selected (P1 to P4), located in the summit-shoulder transition, backslope, footslope and toeslope, respectively. Granulometric distribution of the P1 and P3 profiles indicated sharp textural gradient, with presence of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil-landscape relationship; Pedogenic processes; Lessivage; Ferrolysis; Gleization. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000500477 |
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