Variação temporal de nutrientes na serapilheira de um fragmento de floresta estacional semidecidual montana em Lavras, MG
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
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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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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1815439032091410432 |