Geochemical signatures and weathering rates in soils derived from different granites in contrasting climatic locations
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39708 |
Resumo: | We studied the mineralogical properties and chemical composition of different granites using energy dispersive X-ray spectroscopy coupled with scanning electron microscopy to understand the relationship between granite signatures and soil characteristics, including weathering patterns and soil fertility status. The discriminant analysis (DA) was based on soil physical and chemical properties and was used to differentiate soils developed from I- and S-type granites across contrasting climatic conditions in northeast Brazil. The DA identified the highest values of organic carbon, clay and plant nutrients as key variables to recognize soil profiles derived from I-type granites. In contrast, the greater sand contents and Al saturation distinguished soils developed from S-type granites. These results were related to the mineralogical characteristics of each granite type, such as a high percentage of silica-bearing minerals in the S-type granites. The highest concentrations of K, Ca, Mg, and P in I-type granites were found in feldspars, amphiboles, and apatite. These elements account for the majority of nutrients derived in their soil profiles. However, it seems that the harsh conditions of the humid tropical environment equalized the effect of the rocks on weathering rates-the difference in chemical index of alteration is more extreme in the dry region. |
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Acta Scientiarum. Agronomy (Online) |
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Geochemical signatures and weathering rates in soils derived from different granites in contrasting climatic locationssoil sciencesoil genesissoil fertilitychemical index of alterationnortheastern Brazil.Ciência do SoloWe studied the mineralogical properties and chemical composition of different granites using energy dispersive X-ray spectroscopy coupled with scanning electron microscopy to understand the relationship between granite signatures and soil characteristics, including weathering patterns and soil fertility status. The discriminant analysis (DA) was based on soil physical and chemical properties and was used to differentiate soils developed from I- and S-type granites across contrasting climatic conditions in northeast Brazil. The DA identified the highest values of organic carbon, clay and plant nutrients as key variables to recognize soil profiles derived from I-type granites. In contrast, the greater sand contents and Al saturation distinguished soils developed from S-type granites. These results were related to the mineralogical characteristics of each granite type, such as a high percentage of silica-bearing minerals in the S-type granites. The highest concentrations of K, Ca, Mg, and P in I-type granites were found in feldspars, amphiboles, and apatite. These elements account for the majority of nutrients derived in their soil profiles. However, it seems that the harsh conditions of the humid tropical environment equalized the effect of the rocks on weathering rates-the difference in chemical index of alteration is more extreme in the dry region. Universidade Estadual de Maringá2018-11-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3970810.4025/actasciagron.v41i1.39708Acta Scientiarum. Agronomy; Vol 41 (2019): Publicação Contínua; e39708Acta Scientiarum. Agronomy; v. 41 (2019): Publicação Contínua; e397081807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39708/pdfCopyright (c) 2018 Acta Scientiarum. Agronomyhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessSilva, Ygor Jacques Agra Bezerra daNascimento, Clístenes Williams Araújo doBiondi, Caroline Mirandavan Straaten, PeterSouza Júnior, Valdomiro Severino deFerreira, Tiago Osório2019-09-24T12:25:27Zoai:periodicos.uem.br/ojs:article/39708Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2019-09-24T12:25:27Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Geochemical signatures and weathering rates in soils derived from different granites in contrasting climatic locations |
title |
Geochemical signatures and weathering rates in soils derived from different granites in contrasting climatic locations |
spellingShingle |
Geochemical signatures and weathering rates in soils derived from different granites in contrasting climatic locations Silva, Ygor Jacques Agra Bezerra da soil science soil genesis soil fertility chemical index of alteration northeastern Brazil. Ciência do Solo |
title_short |
Geochemical signatures and weathering rates in soils derived from different granites in contrasting climatic locations |
title_full |
Geochemical signatures and weathering rates in soils derived from different granites in contrasting climatic locations |
title_fullStr |
Geochemical signatures and weathering rates in soils derived from different granites in contrasting climatic locations |
title_full_unstemmed |
Geochemical signatures and weathering rates in soils derived from different granites in contrasting climatic locations |
title_sort |
Geochemical signatures and weathering rates in soils derived from different granites in contrasting climatic locations |
author |
Silva, Ygor Jacques Agra Bezerra da |
author_facet |
Silva, Ygor Jacques Agra Bezerra da Nascimento, Clístenes Williams Araújo do Biondi, Caroline Miranda van Straaten, Peter Souza Júnior, Valdomiro Severino de Ferreira, Tiago Osório |
author_role |
author |
author2 |
Nascimento, Clístenes Williams Araújo do Biondi, Caroline Miranda van Straaten, Peter Souza Júnior, Valdomiro Severino de Ferreira, Tiago Osório |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Silva, Ygor Jacques Agra Bezerra da Nascimento, Clístenes Williams Araújo do Biondi, Caroline Miranda van Straaten, Peter Souza Júnior, Valdomiro Severino de Ferreira, Tiago Osório |
dc.subject.por.fl_str_mv |
soil science soil genesis soil fertility chemical index of alteration northeastern Brazil. Ciência do Solo |
topic |
soil science soil genesis soil fertility chemical index of alteration northeastern Brazil. Ciência do Solo |
description |
We studied the mineralogical properties and chemical composition of different granites using energy dispersive X-ray spectroscopy coupled with scanning electron microscopy to understand the relationship between granite signatures and soil characteristics, including weathering patterns and soil fertility status. The discriminant analysis (DA) was based on soil physical and chemical properties and was used to differentiate soils developed from I- and S-type granites across contrasting climatic conditions in northeast Brazil. The DA identified the highest values of organic carbon, clay and plant nutrients as key variables to recognize soil profiles derived from I-type granites. In contrast, the greater sand contents and Al saturation distinguished soils developed from S-type granites. These results were related to the mineralogical characteristics of each granite type, such as a high percentage of silica-bearing minerals in the S-type granites. The highest concentrations of K, Ca, Mg, and P in I-type granites were found in feldspars, amphiboles, and apatite. These elements account for the majority of nutrients derived in their soil profiles. However, it seems that the harsh conditions of the humid tropical environment equalized the effect of the rocks on weathering rates-the difference in chemical index of alteration is more extreme in the dry region. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-13 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39708 10.4025/actasciagron.v41i1.39708 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39708 |
identifier_str_mv |
10.4025/actasciagron.v41i1.39708 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39708/pdf |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Acta Scientiarum. Agronomy https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Acta Scientiarum. Agronomy https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 41 (2019): Publicação Contínua; e39708 Acta Scientiarum. Agronomy; v. 41 (2019): Publicação Contínua; e39708 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
_version_ |
1799305910568353792 |