Allochthonous material originating from saprolite as a marker of termite activity in Ferralsols.
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1149589 https://doi.org/10.1038/s41598-022-21613-6 |
Resumo: | 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 weathering and are dominated by low-activity clay and sesquioxides. Their physical properties are closely related to their strong submillimetric granular structure. We aimed to characterize the 2:1 clay minerals identified in many Ferralsols and to discuss them as a marker of soil-feeding termite activity in Ferralsols. We present results recorded with Brazilian Ferralsols developed under Cerrado native vegetation on a range of parent materials. It was found that the 2:1 minerals vary from weakly weathered muscovite to hydroxy-Al interlayered vermiculite, sometimes associated to a fine material with a chemical composition highly different from that of the groundmass of the surrounding submillimetric granular aggregates. Results show that both 2:1 minerals and the associated fine material have to be considered as allochthonous material originating from the saprolite and were brought to the Ferralsol by soil-feeding termite activity. This confirms the major role of termites in the properties of Ferralsols and raises questions about the possible consequences of land use change which usually deeply affects soil biodiversity. |
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Allochthonous material originating from saprolite as a marker of termite activity in Ferralsols.BiodiversidadeCerradoComposição QuímicaVegetação NativaBiodiversityChemical compositionFerralsolsSaproliteVermiculiteSoil physical propertiesFerralsols, 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 weathering and are dominated by low-activity clay and sesquioxides. Their physical properties are closely related to their strong submillimetric granular structure. We aimed to characterize the 2:1 clay minerals identified in many Ferralsols and to discuss them as a marker of soil-feeding termite activity in Ferralsols. We present results recorded with Brazilian Ferralsols developed under Cerrado native vegetation on a range of parent materials. It was found that the 2:1 minerals vary from weakly weathered muscovite to hydroxy-Al interlayered vermiculite, sometimes associated to a fine material with a chemical composition highly different from that of the groundmass of the surrounding submillimetric granular aggregates. Results show that both 2:1 minerals and the associated fine material have to be considered as allochthonous material originating from the saprolite and were brought to the Ferralsol by soil-feeding termite activity. This confirms the major role of termites in the properties of Ferralsols and raises questions about the possible consequences of land use change which usually deeply affects soil biodiversity.Na publicação: Adriana Reatto.ARY BRUAND, INSTITUT DES SCIENCES DE LA TERRA D'ORLÉANS; ADRIANA REATTO DOS SANTOS BRAGA, GGPP; EDER DE SOUZA MARTINS, CPAC.BRUAND, A.BRAGA, A. R. dos S.MARTINS, E. de S.2022-12-13T19:01:25Z2022-12-13T19:01:25Z2022-12-132022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleScientifc Reports, v. 12, e17193, 2022.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1149589https://doi.org/10.1038/s41598-022-21613-6enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2022-12-13T19:01:25Zoai:www.alice.cnptia.embrapa.br:doc/1149589Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542022-12-13T19:01:25falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542022-12-13T19:01:25Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Allochthonous material originating from saprolite as a marker of termite activity in Ferralsols. |
title |
Allochthonous material originating from saprolite as a marker of termite activity in Ferralsols. |
spellingShingle |
Allochthonous material originating from saprolite as a marker of termite activity in Ferralsols. BRUAND, A. Biodiversidade Cerrado Composição Química Vegetação Nativa Biodiversity Chemical composition Ferralsols Saprolite Vermiculite Soil physical properties |
title_short |
Allochthonous material originating from saprolite as a marker of termite activity in Ferralsols. |
title_full |
Allochthonous material originating from saprolite as a marker of termite activity in Ferralsols. |
title_fullStr |
Allochthonous material originating from saprolite as a marker of termite activity in Ferralsols. |
title_full_unstemmed |
Allochthonous material originating from saprolite as a marker of termite activity in Ferralsols. |
title_sort |
Allochthonous material originating from saprolite as a marker of termite activity in Ferralsols. |
author |
BRUAND, A. |
author_facet |
BRUAND, A. BRAGA, A. R. dos S. MARTINS, E. de S. |
author_role |
author |
author2 |
BRAGA, A. R. dos S. MARTINS, E. de S. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
ARY BRUAND, INSTITUT DES SCIENCES DE LA TERRA D'ORLÉANS; ADRIANA REATTO DOS SANTOS BRAGA, GGPP; EDER DE SOUZA MARTINS, CPAC. |
dc.contributor.author.fl_str_mv |
BRUAND, A. BRAGA, A. R. dos S. MARTINS, E. de S. |
dc.subject.por.fl_str_mv |
Biodiversidade Cerrado Composição Química Vegetação Nativa Biodiversity Chemical composition Ferralsols Saprolite Vermiculite Soil physical properties |
topic |
Biodiversidade Cerrado Composição Química Vegetação Nativa Biodiversity Chemical composition Ferralsols Saprolite Vermiculite Soil physical properties |
description |
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 weathering and are dominated by low-activity clay and sesquioxides. Their physical properties are closely related to their strong submillimetric granular structure. We aimed to characterize the 2:1 clay minerals identified in many Ferralsols and to discuss them as a marker of soil-feeding termite activity in Ferralsols. We present results recorded with Brazilian Ferralsols developed under Cerrado native vegetation on a range of parent materials. It was found that the 2:1 minerals vary from weakly weathered muscovite to hydroxy-Al interlayered vermiculite, sometimes associated to a fine material with a chemical composition highly different from that of the groundmass of the surrounding submillimetric granular aggregates. Results show that both 2:1 minerals and the associated fine material have to be considered as allochthonous material originating from the saprolite and were brought to the Ferralsol by soil-feeding termite activity. This confirms the major role of termites in the properties of Ferralsols and raises questions about the possible consequences of land use change which usually deeply affects soil biodiversity. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-12-13T19:01:25Z 2022-12-13T19:01:25Z 2022-12-13 2022 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Scientifc Reports, v. 12, e17193, 2022. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1149589 https://doi.org/10.1038/s41598-022-21613-6 |
identifier_str_mv |
Scientifc Reports, v. 12, e17193, 2022. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1149589 https://doi.org/10.1038/s41598-022-21613-6 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503535754215424 |