Carbon and nutrients stocks in even-aged maritime pine stands from Portugal

Detalhes bibliográficos
Autor(a) principal: Nunes, L.
Data de Publicação: 2010
Outros Autores: Patricio, M., Tomé, J., Tomé, Margarida
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/4683
Resumo: To comply with the demands of the Kyoto Protocol, industrialized countries must reliably estimate the stored carbon (C) in different pools of forest ecosystems. The main objective of this study was to quantify the biomass, C and nutrients stocks in the forest floor, understory, downed dead wood (DDW) and mineral soil of even-aged maritime pine (Pinus pinaster Ait.) stands from three contrasting regions of Portugal. Assessing the specific contribution of DDW to the C and nutrients stocks and how C concentration in the plant material differs from 0.50, the reference value used in many practical applications, were also objectives of this research. Biomass content of forest floor was determined by a quadrat method. Sampling units of 1 m2 were used for the understory. The line intersection method was adopted for sampling DDW and the mineral soil was sampled at three depths. Concentrations of C and nutrients were obtained by chemical analysis of samples from soil and milled plant material. Biomass and C in the trees were obtained using published equations. Total C stocks ranged between 100.6 Mg ha–1 and 308.6 Mg ha–1. Mineral soil shared up to 70-74% of global stored C, being the main cause of the global C stock differences among regions. Phosphorous and potassium were at low to very low levels in the mineral soil and plant material. The contribution of DDW to the C and nutrients pools was negligible. The percentage of C in the plant material ranged between 52% and 54%.
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spelling Carbon and nutrients stocks in even-aged maritime pine stands from PortugalContenido de carbono y nutrientes en masas regulares de pino maritimo en Portugalcarbon poolsstocksbiomassnutrientsmaritime pinePinus pinasterTo comply with the demands of the Kyoto Protocol, industrialized countries must reliably estimate the stored carbon (C) in different pools of forest ecosystems. The main objective of this study was to quantify the biomass, C and nutrients stocks in the forest floor, understory, downed dead wood (DDW) and mineral soil of even-aged maritime pine (Pinus pinaster Ait.) stands from three contrasting regions of Portugal. Assessing the specific contribution of DDW to the C and nutrients stocks and how C concentration in the plant material differs from 0.50, the reference value used in many practical applications, were also objectives of this research. Biomass content of forest floor was determined by a quadrat method. Sampling units of 1 m2 were used for the understory. The line intersection method was adopted for sampling DDW and the mineral soil was sampled at three depths. Concentrations of C and nutrients were obtained by chemical analysis of samples from soil and milled plant material. Biomass and C in the trees were obtained using published equations. Total C stocks ranged between 100.6 Mg ha–1 and 308.6 Mg ha–1. Mineral soil shared up to 70-74% of global stored C, being the main cause of the global C stock differences among regions. Phosphorous and potassium were at low to very low levels in the mineral soil and plant material. The contribution of DDW to the C and nutrients pools was negligible. The percentage of C in the plant material ranged between 52% and 54%.INIARepositório da Universidade de LisboaNunes, L.Patricio, M.Tomé, J.Tomé, Margarida2012-09-17T14:11:04Z20102010-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/4683eng"Forest Systems". ISSN 2171-9845. 19(3) (2010) 434-4482171-9845info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:35:38Zoai:www.repository.utl.pt:10400.5/4683Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:52:17.785174Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Carbon and nutrients stocks in even-aged maritime pine stands from Portugal
Contenido de carbono y nutrientes en masas regulares de pino maritimo en Portugal
title Carbon and nutrients stocks in even-aged maritime pine stands from Portugal
spellingShingle Carbon and nutrients stocks in even-aged maritime pine stands from Portugal
Nunes, L.
carbon pools
stocks
biomass
nutrients
maritime pine
Pinus pinaster
title_short Carbon and nutrients stocks in even-aged maritime pine stands from Portugal
title_full Carbon and nutrients stocks in even-aged maritime pine stands from Portugal
title_fullStr Carbon and nutrients stocks in even-aged maritime pine stands from Portugal
title_full_unstemmed Carbon and nutrients stocks in even-aged maritime pine stands from Portugal
title_sort Carbon and nutrients stocks in even-aged maritime pine stands from Portugal
author Nunes, L.
author_facet Nunes, L.
Patricio, M.
Tomé, J.
Tomé, Margarida
author_role author
author2 Patricio, M.
Tomé, J.
Tomé, Margarida
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Nunes, L.
Patricio, M.
Tomé, J.
Tomé, Margarida
dc.subject.por.fl_str_mv carbon pools
stocks
biomass
nutrients
maritime pine
Pinus pinaster
topic carbon pools
stocks
biomass
nutrients
maritime pine
Pinus pinaster
description To comply with the demands of the Kyoto Protocol, industrialized countries must reliably estimate the stored carbon (C) in different pools of forest ecosystems. The main objective of this study was to quantify the biomass, C and nutrients stocks in the forest floor, understory, downed dead wood (DDW) and mineral soil of even-aged maritime pine (Pinus pinaster Ait.) stands from three contrasting regions of Portugal. Assessing the specific contribution of DDW to the C and nutrients stocks and how C concentration in the plant material differs from 0.50, the reference value used in many practical applications, were also objectives of this research. Biomass content of forest floor was determined by a quadrat method. Sampling units of 1 m2 were used for the understory. The line intersection method was adopted for sampling DDW and the mineral soil was sampled at three depths. Concentrations of C and nutrients were obtained by chemical analysis of samples from soil and milled plant material. Biomass and C in the trees were obtained using published equations. Total C stocks ranged between 100.6 Mg ha–1 and 308.6 Mg ha–1. Mineral soil shared up to 70-74% of global stored C, being the main cause of the global C stock differences among regions. Phosphorous and potassium were at low to very low levels in the mineral soil and plant material. The contribution of DDW to the C and nutrients pools was negligible. The percentage of C in the plant material ranged between 52% and 54%.
publishDate 2010
dc.date.none.fl_str_mv 2010
2010-01-01T00:00:00Z
2012-09-17T14:11:04Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/4683
url http://hdl.handle.net/10400.5/4683
dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv "Forest Systems". ISSN 2171-9845. 19(3) (2010) 434-448
2171-9845
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publisher.none.fl_str_mv INIA
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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