Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MG

Detalhes bibliográficos
Autor(a) principal: Dias, Herly Carlos Teixeira
Data de Publicação: 2015
Outros Autores: Figueira, Marcelo Dias, Silveira, Valter, Fontes, Marco Aurélio Leite, Oliveira-Filho, Ary Teixeira de, Scolforo, José Roberto S.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/14144
Resumo: The study assessed total amount and concentration of macro and micronutrients of litterfall produced monthy in a fragment of tropical montane semideciduous forest in Lavras, Minas Gerais State, Brazil. From October 1991 to October 1992, litter was collected at 15-day intervals, from 0.5m x 0.5m wooden frames systematically distributed within a forest fragment. A monthly bulk sample was extracted from the collected litter according to fractions of leaves, propagules + flowers, and woody material. The samples were first naturally dried in shade followed by drying in a stove with forced air circulation at 65°C for 50 hours. After grinding, these samples underwent routine analyses at the Leaf Analysis Laboratory of the Federal University of Lavras. The amounts (kg/ha) of macronutrients present in the litter and probably returned to soil are concentration ranked as N>K>Ca>Mg>P for litter total. Micronutrients were present in the following concentration rank: Fe>Mn>B>Zn>Cu for the litter total and all studied fractions. N, K and Mg were the macronutrients with strongest seasonality, their highest amounts ocurring during rainiest months for all studied fractions. The amounts of N and P seem to be less variable. The behavior of content curves was very similar among categories for all macronutrients. The levels of B, Cu and Zn varied similarly within each fraction. Highest peaks were observed for B at end of  dry season. Higher levels were detected for Fe and Mn, and these varied widely during the period studied. During the dry season there was a coincident inversion in the levels of Fe and Mn for all studied categories.
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spelling Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MGTemporal variation of litterfall nutrients in a tropical montane semideciduous forest fragment in Lavras, Minas Gerais state, southeastern BrazilCiclagem de nutrientesMata nativaRetranslocaçãoRetorno de nutrientesFloresta semidecidualNutrient cyclingNative forestRetranslocationNutrient returnSemideciduous forestThe study assessed total amount and concentration of macro and micronutrients of litterfall produced monthy in a fragment of tropical montane semideciduous forest in Lavras, Minas Gerais State, Brazil. From October 1991 to October 1992, litter was collected at 15-day intervals, from 0.5m x 0.5m wooden frames systematically distributed within a forest fragment. A monthly bulk sample was extracted from the collected litter according to fractions of leaves, propagules + flowers, and woody material. The samples were first naturally dried in shade followed by drying in a stove with forced air circulation at 65°C for 50 hours. After grinding, these samples underwent routine analyses at the Leaf Analysis Laboratory of the Federal University of Lavras. The amounts (kg/ha) of macronutrients present in the litter and probably returned to soil are concentration ranked as N>K>Ca>Mg>P for litter total. Micronutrients were present in the following concentration rank: Fe>Mn>B>Zn>Cu for the litter total and all studied fractions. N, K and Mg were the macronutrients with strongest seasonality, their highest amounts ocurring during rainiest months for all studied fractions. The amounts of N and P seem to be less variable. The behavior of content curves was very similar among categories for all macronutrients. The levels of B, Cu and Zn varied similarly within each fraction. Highest peaks were observed for B at end of  dry season. Higher levels were detected for Fe and Mn, and these varied widely during the period studied. During the dry season there was a coincident inversion in the levels of Fe and Mn for all studied categories.Avaliaram-se o teor e a quantidade de macro e micronutrientes presentes na produção mensal de serapilheira de um fragmento de floresta estacional semidecídua montana em Lavras, MG. A serapilheira foi coletada quinzenalmente, de outubro de 1991 a outubro de 1992, em coletores de madeira de 0,5m x 0,5m dispostos sistematicamente numa área do fragmento florestal. Da serapilheira coletada, retirou-se uma amostra composta mensal das frações folhas, propágulos + flores, material lenhoso. As amostras foram secas à sombra e depois em estufa com circulação forçada de ar a 65ºC por 50 horas. Depois de trituradas, as amostras foram encaminhadas ao Laboratório de Análise Foliar da UFLA onde se processou a análise de rotina. A quantidade (kg/ha) dos macronutrientes presentes na serapilheira, os quais provavelmente estariam sendo repostos ao solo, são: N>K>Ca>Mg>P para a serapilheira total. Os micronutrientes estavam presentes na seguinte ordem decrescente de quantidade: Fe>Mn>B>Zn>Cu, para a serapilheira total e todas as frações estudadas. N, K e Mg foram os macronutrientes que mais demostraram o efeito da sazonalidade com maiores quantidades ocorrendo nos meses de maior precipitação pluviométrica em todas as frações estudadas. Os teores de N e P parecem ter variado menos com a variação sazonal. O comportamento da curva de teores foi bastante semelhante entre categorias para todos os macronutrientes. Os teores de B, Cu e Zn tendem a variar semelhantemente dentro de cada fração. Picos mais elevados de B foram observados no final da estação seca. Foram detectados maiores teores de Fe e Mn, e estes variaram mais ao longo do período estudado. Na estação seca houve uma coincidente inversão de valores nos teores de Fe e Mn em todas as categorias estudadas.Universidade Federal de Lavras (UFLA)2015-10-082017-08-01T20:13:43Z2017-08-01T20:13:43Z2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfDIAS, H. C. T. et al. Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MG. CERNE, [S.l.], v. 8, n. 2, p. 1-16, 2002.http://repositorio.ufla.br/jspui/handle/1/141442317-63420104-7760reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAporhttp://www.cerne.ufla.br/site/index.php/CERNE/article/view/575/491Copyright (c) 2015 CERNEAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessDias, Herly Carlos TeixeiraFigueira, Marcelo DiasSilveira, ValterFontes, Marco Aurélio LeiteOliveira-Filho, Ary Teixeira deScolforo, José Roberto S.2021-07-29T22:34:54Zoai:localhost:1/14144Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-07-29T22:34:54Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MG
Temporal variation of litterfall nutrients in a tropical montane semideciduous forest fragment in Lavras, Minas Gerais state, southeastern Brazil
title Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MG
spellingShingle Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MG
Dias, Herly Carlos Teixeira
Ciclagem de nutrientes
Mata nativa
Retranslocação
Retorno de nutrientes
Floresta semidecidual
Nutrient cycling
Native forest
Retranslocation
Nutrient return
Semideciduous forest
title_short Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MG
title_full Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MG
title_fullStr Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MG
title_full_unstemmed Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MG
title_sort Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MG
author Dias, Herly Carlos Teixeira
author_facet Dias, Herly Carlos Teixeira
Figueira, Marcelo Dias
Silveira, Valter
Fontes, Marco Aurélio Leite
Oliveira-Filho, Ary Teixeira de
Scolforo, José Roberto S.
author_role author
author2 Figueira, Marcelo Dias
Silveira, Valter
Fontes, Marco Aurélio Leite
Oliveira-Filho, Ary Teixeira de
Scolforo, José Roberto S.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Dias, Herly Carlos Teixeira
Figueira, Marcelo Dias
Silveira, Valter
Fontes, Marco Aurélio Leite
Oliveira-Filho, Ary Teixeira de
Scolforo, José Roberto S.
dc.subject.por.fl_str_mv Ciclagem de nutrientes
Mata nativa
Retranslocação
Retorno de nutrientes
Floresta semidecidual
Nutrient cycling
Native forest
Retranslocation
Nutrient return
Semideciduous forest
topic Ciclagem de nutrientes
Mata nativa
Retranslocação
Retorno de nutrientes
Floresta semidecidual
Nutrient cycling
Native forest
Retranslocation
Nutrient return
Semideciduous forest
description The study assessed total amount and concentration of macro and micronutrients of litterfall produced monthy in a fragment of tropical montane semideciduous forest in Lavras, Minas Gerais State, Brazil. From October 1991 to October 1992, litter was collected at 15-day intervals, from 0.5m x 0.5m wooden frames systematically distributed within a forest fragment. A monthly bulk sample was extracted from the collected litter according to fractions of leaves, propagules + flowers, and woody material. The samples were first naturally dried in shade followed by drying in a stove with forced air circulation at 65°C for 50 hours. After grinding, these samples underwent routine analyses at the Leaf Analysis Laboratory of the Federal University of Lavras. The amounts (kg/ha) of macronutrients present in the litter and probably returned to soil are concentration ranked as N>K>Ca>Mg>P for litter total. Micronutrients were present in the following concentration rank: Fe>Mn>B>Zn>Cu for the litter total and all studied fractions. N, K and Mg were the macronutrients with strongest seasonality, their highest amounts ocurring during rainiest months for all studied fractions. The amounts of N and P seem to be less variable. The behavior of content curves was very similar among categories for all macronutrients. The levels of B, Cu and Zn varied similarly within each fraction. Highest peaks were observed for B at end of  dry season. Higher levels were detected for Fe and Mn, and these varied widely during the period studied. During the dry season there was a coincident inversion in the levels of Fe and Mn for all studied categories.
publishDate 2015
dc.date.none.fl_str_mv 2015-10-08
2017-08-01T20:13:43Z
2017-08-01T20:13:43Z
2017-08-01
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 DIAS, H. C. T. et al. Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MG. CERNE, [S.l.], v. 8, n. 2, p. 1-16, 2002.
http://repositorio.ufla.br/jspui/handle/1/14144
identifier_str_mv DIAS, H. C. T. et al. Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MG. CERNE, [S.l.], v. 8, n. 2, p. 1-16, 2002.
url http://repositorio.ufla.br/jspui/handle/1/14144
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.cerne.ufla.br/site/index.php/CERNE/article/view/575/491
dc.rights.driver.fl_str_mv Copyright (c) 2015 CERNE
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2015 CERNE
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Lavras (UFLA)
publisher.none.fl_str_mv Universidade Federal de Lavras (UFLA)
dc.source.none.fl_str_mv 2317-6342
0104-7760
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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