CHARACTERIZATION OF BIOGENIC, INTERMEDIATE AND PHYSICOGENIC SOIL AGGREGATES OF AREAS IN THE BRAZILIAN ATLANTIC FOREST

Detalhes bibliográficos
Autor(a) principal: Fernandes, Júlio César Feitosa
Data de Publicação: 2016
Outros Autores: Pereira, Marcos Gervasio, Silva Neto, Eduardo Carvalho da, Corrêa Neto, Thaís de Andrade
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Caatinga
Texto Completo: https://periodicos.ufersa.edu.br/caatinga/article/view/4830
Resumo: Aggregate formation and stability are related to soil quality, contributing significantly to the carbon storage and nutrient maintenance capacities of the soil. Soil aggregates are formed by two different process: physicogenic, related to moistening and drying cycles and input of organic matter; and biogenic, related to the action of macrofauna organisms and roots. The objective this work was to classify aggregates according to their formation process, quantify and compare organic carbon contents in humic substances and assess the stability of aggregates formed by different processes, in areas with different coverage in the Mid Paraiba Valley, Pinheiral, State of Rio de Janeiro, Brazil. Aggregated soil samples were collected at a depth of 0-10 cm, in a Cambisol (Cambissolo Háplico Tb Distrófico) under four plant covers: secondary forest in advanced (SFAS), medium (SFMS) and initial (SFIS) successional stages and managed mixed pasture (MMP). Aggregates were classified and identified into three morphological classes (physicogenic, biogenic and intermediate). The variables evaluated were mean weight diameter (MWD) and geometric mean diameter (GMD) of aggregates, chemical fractions of organic matter, total organic carbon (TOC) and humic substances: humin (C-HUM) humic acid (C-FAH) and fulvic acid (C-FAF). Biogenic aggregates were found in smaller quantities and showed higher TOC, C-HUM and C-FAH, compared to intermediate and physicogenic aggregates. Thus, biogenic aggregates have potential to be used as soil quality indicators for structured environments, which are able to maintain its intrinsic formation processes.
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spelling CHARACTERIZATION OF BIOGENIC, INTERMEDIATE AND PHYSICOGENIC SOIL AGGREGATES OF AREAS IN THE BRAZILIAN ATLANTIC FORESTCARACTERIZAÇÃO DE AGREGADOS BIOGÊNICOS, INTERMEDIÁRIOS E FISIOGÊNICOS EM ÁREAS SOB DOMÍNIO DE MATA ATLÂNTICAMorfologia de agregados. Fragmentos Florestais. Carbono orgânico. Substâncias húmicas.Aggregate morphology. Forest fragments. Organic carbon. Humic substances.Aggregate formation and stability are related to soil quality, contributing significantly to the carbon storage and nutrient maintenance capacities of the soil. Soil aggregates are formed by two different process: physicogenic, related to moistening and drying cycles and input of organic matter; and biogenic, related to the action of macrofauna organisms and roots. The objective this work was to classify aggregates according to their formation process, quantify and compare organic carbon contents in humic substances and assess the stability of aggregates formed by different processes, in areas with different coverage in the Mid Paraiba Valley, Pinheiral, State of Rio de Janeiro, Brazil. Aggregated soil samples were collected at a depth of 0-10 cm, in a Cambisol (Cambissolo Háplico Tb Distrófico) under four plant covers: secondary forest in advanced (SFAS), medium (SFMS) and initial (SFIS) successional stages and managed mixed pasture (MMP). Aggregates were classified and identified into three morphological classes (physicogenic, biogenic and intermediate). The variables evaluated were mean weight diameter (MWD) and geometric mean diameter (GMD) of aggregates, chemical fractions of organic matter, total organic carbon (TOC) and humic substances: humin (C-HUM) humic acid (C-FAH) and fulvic acid (C-FAF). Biogenic aggregates were found in smaller quantities and showed higher TOC, C-HUM and C-FAH, compared to intermediate and physicogenic aggregates. Thus, biogenic aggregates have potential to be used as soil quality indicators for structured environments, which are able to maintain its intrinsic formation processes.A formação e estabilidade de agregados estão intimamente relacionadas à qualidade do solo, contribuindo de maneira significativa na capacidade de estocar carbono e manutenção de nutrientes no solo. Os agregados do solo são formados por duas vias distintas: a fisiogênica, relacionada a ciclos de umedecimento e/ou secagem e adição de matéria orgânica e a biogênica associada à ação dos organismos da macrofauna e de raízes. Neste estudo, objetivou-se separar os agregados conforme a via de formação e, posteriormente, quantificar e comparar os teores de carbono orgânico das substâncias húmicas e a estabilidade de agregados formados por diferentes vias e coberturas vegetais, na região do Médio Vale do Paraiba Fluminense, Pinheiral (RJ). Foram coletadas amostras indeformadas de solo na profundidade de 0-10 cm, em um Cambissolo Háplico Tb Distrófico, sob quatro coberturas vegetais: floresta secundária em diferentes estádios sucessionais - avançado (FSEA); médio (FSEM); inicial (FSEI) e uma área de pasto misto manejado (PMM). Os agregados foram separados e identificados em três classes morfológicas (fisiogênica, biogênica e intermediária). Posteriormente, foram determinados o diâmetro médio ponderado (DMP) e geométrico (DMG) dos agregados, fracionamento químico da matéria orgânica e quantificação dos teores de carbono orgânico total (COT) e das substâncias húmicas: humina (C-HUM), ácido húmico (C-FAH) e ácido fúlvico (C-FAF). Os agregados biogênicos foram encontrados em menor quantidade e apresentaram maiores teores de COT, C-HUM, C-FAH em comparação aos agregados intermediários e fisiogênicos. Dessa forma, os agregados biogênicos têm potencial para serem enquadrados como indicadores de qualidade do solo, associados a ambientes mais estruturados, capazes de manter os processos intrínsecos a sua formação.Universidade Federal Rural do Semi-Árido2016-12-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/483010.1590/1983-21252017v30n107rcREVISTA CAATINGA; Vol. 30 No. 1 (2017); 59-67Revista Caatinga; v. 30 n. 1 (2017); 59-671983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/4830/pdfFernandes, Júlio César FeitosaPereira, Marcos GervasioSilva Neto, Eduardo Carvalho daCorrêa Neto, Thaís de Andradeinfo:eu-repo/semantics/openAccess2023-07-20T10:33:45Zoai:ojs.periodicos.ufersa.edu.br:article/4830Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:19.241226Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true
dc.title.none.fl_str_mv CHARACTERIZATION OF BIOGENIC, INTERMEDIATE AND PHYSICOGENIC SOIL AGGREGATES OF AREAS IN THE BRAZILIAN ATLANTIC FOREST
CARACTERIZAÇÃO DE AGREGADOS BIOGÊNICOS, INTERMEDIÁRIOS E FISIOGÊNICOS EM ÁREAS SOB DOMÍNIO DE MATA ATLÂNTICA
title CHARACTERIZATION OF BIOGENIC, INTERMEDIATE AND PHYSICOGENIC SOIL AGGREGATES OF AREAS IN THE BRAZILIAN ATLANTIC FOREST
spellingShingle CHARACTERIZATION OF BIOGENIC, INTERMEDIATE AND PHYSICOGENIC SOIL AGGREGATES OF AREAS IN THE BRAZILIAN ATLANTIC FOREST
Fernandes, Júlio César Feitosa
Morfologia de agregados. Fragmentos Florestais. Carbono orgânico. Substâncias húmicas.
Aggregate morphology. Forest fragments. Organic carbon. Humic substances.
title_short CHARACTERIZATION OF BIOGENIC, INTERMEDIATE AND PHYSICOGENIC SOIL AGGREGATES OF AREAS IN THE BRAZILIAN ATLANTIC FOREST
title_full CHARACTERIZATION OF BIOGENIC, INTERMEDIATE AND PHYSICOGENIC SOIL AGGREGATES OF AREAS IN THE BRAZILIAN ATLANTIC FOREST
title_fullStr CHARACTERIZATION OF BIOGENIC, INTERMEDIATE AND PHYSICOGENIC SOIL AGGREGATES OF AREAS IN THE BRAZILIAN ATLANTIC FOREST
title_full_unstemmed CHARACTERIZATION OF BIOGENIC, INTERMEDIATE AND PHYSICOGENIC SOIL AGGREGATES OF AREAS IN THE BRAZILIAN ATLANTIC FOREST
title_sort CHARACTERIZATION OF BIOGENIC, INTERMEDIATE AND PHYSICOGENIC SOIL AGGREGATES OF AREAS IN THE BRAZILIAN ATLANTIC FOREST
author Fernandes, Júlio César Feitosa
author_facet Fernandes, Júlio César Feitosa
Pereira, Marcos Gervasio
Silva Neto, Eduardo Carvalho da
Corrêa Neto, Thaís de Andrade
author_role author
author2 Pereira, Marcos Gervasio
Silva Neto, Eduardo Carvalho da
Corrêa Neto, Thaís de Andrade
author2_role author
author
author
dc.contributor.author.fl_str_mv Fernandes, Júlio César Feitosa
Pereira, Marcos Gervasio
Silva Neto, Eduardo Carvalho da
Corrêa Neto, Thaís de Andrade
dc.subject.por.fl_str_mv Morfologia de agregados. Fragmentos Florestais. Carbono orgânico. Substâncias húmicas.
Aggregate morphology. Forest fragments. Organic carbon. Humic substances.
topic Morfologia de agregados. Fragmentos Florestais. Carbono orgânico. Substâncias húmicas.
Aggregate morphology. Forest fragments. Organic carbon. Humic substances.
description Aggregate formation and stability are related to soil quality, contributing significantly to the carbon storage and nutrient maintenance capacities of the soil. Soil aggregates are formed by two different process: physicogenic, related to moistening and drying cycles and input of organic matter; and biogenic, related to the action of macrofauna organisms and roots. The objective this work was to classify aggregates according to their formation process, quantify and compare organic carbon contents in humic substances and assess the stability of aggregates formed by different processes, in areas with different coverage in the Mid Paraiba Valley, Pinheiral, State of Rio de Janeiro, Brazil. Aggregated soil samples were collected at a depth of 0-10 cm, in a Cambisol (Cambissolo Háplico Tb Distrófico) under four plant covers: secondary forest in advanced (SFAS), medium (SFMS) and initial (SFIS) successional stages and managed mixed pasture (MMP). Aggregates were classified and identified into three morphological classes (physicogenic, biogenic and intermediate). The variables evaluated were mean weight diameter (MWD) and geometric mean diameter (GMD) of aggregates, chemical fractions of organic matter, total organic carbon (TOC) and humic substances: humin (C-HUM) humic acid (C-FAH) and fulvic acid (C-FAF). Biogenic aggregates were found in smaller quantities and showed higher TOC, C-HUM and C-FAH, compared to intermediate and physicogenic aggregates. Thus, biogenic aggregates have potential to be used as soil quality indicators for structured environments, which are able to maintain its intrinsic formation processes.
publishDate 2016
dc.date.none.fl_str_mv 2016-12-02
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 https://periodicos.ufersa.edu.br/caatinga/article/view/4830
10.1590/1983-21252017v30n107rc
url https://periodicos.ufersa.edu.br/caatinga/article/view/4830
identifier_str_mv 10.1590/1983-21252017v30n107rc
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/4830/pdf
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
dc.source.none.fl_str_mv REVISTA CAATINGA; Vol. 30 No. 1 (2017); 59-67
Revista Caatinga; v. 30 n. 1 (2017); 59-67
1983-2125
0100-316X
reponame:Revista Caatinga
instname:Universidade Federal Rural do Semi-Árido (UFERSA)
instacron:UFERSA
instname_str Universidade Federal Rural do Semi-Árido (UFERSA)
instacron_str UFERSA
institution UFERSA
reponame_str Revista Caatinga
collection Revista Caatinga
repository.name.fl_str_mv Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)
repository.mail.fl_str_mv patricio@ufersa.edu.br|| caatinga@ufersa.edu.br
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