Soil Organic Matter Fractions Under Eucalypt Plantation in Reform Management

Detalhes bibliográficos
Autor(a) principal: Soares,Emanuelle Merces Barros
Data de Publicação: 2019
Outros Autores: Teixeira,Rafael da Silva, Sousa,Rodrigo Nogueira de, Vasconcelos,Aline de Almeida, Silva,Ivo Ribeiro da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Floresta e Ambiente
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000200146
Resumo: ABSTRACT Harvesting and reform in eucalyptus can lead to changes in soil organic matter (SOM). The objective of this work was to evaluate the changes in total organic C (TOC) and N (NT), C and N in humic acid (HA), fulvic acid (FH), light organic matter (LOM) and microbial biomass (MB), in Ultisol of eucalypt stands over one, two and four years of renovated areas in Rio Grande do Sul state. After the first year of eucalyptus reform, there were 78% of increases in TOC (0.0-1.0-m soil layer). After two years, there was an increase in TN and an average reduction of 52% in LOM-C (0.0-0.1-m soil layer). FA-C, HA-C, and HU-C presented mean reductions of 43 Mg ha–1 (0.0-1.0-m soil layer) after four years of reform. The litter contribution of previous crop and the crop residues from the harvest resulted in increments of the SOM fractions. However, there is a negative effect in later years.
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spelling Soil Organic Matter Fractions Under Eucalypt Plantation in Reform Managementforest soilsreformhumic substancesmicrobial biomasslight organic matterABSTRACT Harvesting and reform in eucalyptus can lead to changes in soil organic matter (SOM). The objective of this work was to evaluate the changes in total organic C (TOC) and N (NT), C and N in humic acid (HA), fulvic acid (FH), light organic matter (LOM) and microbial biomass (MB), in Ultisol of eucalypt stands over one, two and four years of renovated areas in Rio Grande do Sul state. After the first year of eucalyptus reform, there were 78% of increases in TOC (0.0-1.0-m soil layer). After two years, there was an increase in TN and an average reduction of 52% in LOM-C (0.0-0.1-m soil layer). FA-C, HA-C, and HU-C presented mean reductions of 43 Mg ha–1 (0.0-1.0-m soil layer) after four years of reform. The litter contribution of previous crop and the crop residues from the harvest resulted in increments of the SOM fractions. However, there is a negative effect in later years.Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000200146Floresta e Ambiente v.26 n.2 2019reponame:Floresta e Ambienteinstname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJ10.1590/2179-8087.069417info:eu-repo/semantics/openAccessSoares,Emanuelle Merces BarrosTeixeira,Rafael da SilvaSousa,Rodrigo Nogueira deVasconcelos,Aline de AlmeidaSilva,Ivo Ribeiro daeng2019-05-06T00:00:00Zoai:scielo:S2179-80872019000200146Revistahttps://www.floram.org/PUBhttps://old.scielo.br/oai/scielo-oai.phpfloramjournal@gmail.com||floram@ufrrj.br||2179-80871415-0980opendoar:2019-05-06T00:00Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.none.fl_str_mv Soil Organic Matter Fractions Under Eucalypt Plantation in Reform Management
title Soil Organic Matter Fractions Under Eucalypt Plantation in Reform Management
spellingShingle Soil Organic Matter Fractions Under Eucalypt Plantation in Reform Management
Soares,Emanuelle Merces Barros
forest soils
reform
humic substances
microbial biomass
light organic matter
title_short Soil Organic Matter Fractions Under Eucalypt Plantation in Reform Management
title_full Soil Organic Matter Fractions Under Eucalypt Plantation in Reform Management
title_fullStr Soil Organic Matter Fractions Under Eucalypt Plantation in Reform Management
title_full_unstemmed Soil Organic Matter Fractions Under Eucalypt Plantation in Reform Management
title_sort Soil Organic Matter Fractions Under Eucalypt Plantation in Reform Management
author Soares,Emanuelle Merces Barros
author_facet Soares,Emanuelle Merces Barros
Teixeira,Rafael da Silva
Sousa,Rodrigo Nogueira de
Vasconcelos,Aline de Almeida
Silva,Ivo Ribeiro da
author_role author
author2 Teixeira,Rafael da Silva
Sousa,Rodrigo Nogueira de
Vasconcelos,Aline de Almeida
Silva,Ivo Ribeiro da
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Soares,Emanuelle Merces Barros
Teixeira,Rafael da Silva
Sousa,Rodrigo Nogueira de
Vasconcelos,Aline de Almeida
Silva,Ivo Ribeiro da
dc.subject.por.fl_str_mv forest soils
reform
humic substances
microbial biomass
light organic matter
topic forest soils
reform
humic substances
microbial biomass
light organic matter
description ABSTRACT Harvesting and reform in eucalyptus can lead to changes in soil organic matter (SOM). The objective of this work was to evaluate the changes in total organic C (TOC) and N (NT), C and N in humic acid (HA), fulvic acid (FH), light organic matter (LOM) and microbial biomass (MB), in Ultisol of eucalypt stands over one, two and four years of renovated areas in Rio Grande do Sul state. After the first year of eucalyptus reform, there were 78% of increases in TOC (0.0-1.0-m soil layer). After two years, there was an increase in TN and an average reduction of 52% in LOM-C (0.0-0.1-m soil layer). FA-C, HA-C, and HU-C presented mean reductions of 43 Mg ha–1 (0.0-1.0-m soil layer) after four years of reform. The litter contribution of previous crop and the crop residues from the harvest resulted in increments of the SOM fractions. However, there is a negative effect in later years.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000200146
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000200146
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2179-8087.069417
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
publisher.none.fl_str_mv Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
dc.source.none.fl_str_mv Floresta e Ambiente v.26 n.2 2019
reponame:Floresta e Ambiente
instname:Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
instname_str Universidade Federal do Rio de Janeiro (UFRJ)
instacron_str UFRJ
institution UFRJ
reponame_str Floresta e Ambiente
collection Floresta e Ambiente
repository.name.fl_str_mv Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)
repository.mail.fl_str_mv floramjournal@gmail.com||floram@ufrrj.br||
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