Publicação
Biomass expansion factors for Eucalyptus globulus stands in Portugal
| Resumo: | One of several procedures for estimating carbon stocks in forests is the estimation of tree or stand biomass based on forest inventory data. The two approaches normally used to convert field measurements of trees to stand biomass values are allometric biomass equations and biomass expansion factors (BEFs). BEFs are used in published National Forest Inventory results in which biomass is not estimated or as a complement of growth models that do not include biomass predictions. In this paper, the effectiveness of BEFs for estimating total stand biomass in Portuguese Eucalyptus globulus plantations was analyzed. Here, BEF is defined as the ratio of total stand biomass (aboveground biomass plus root biomass) to stand volume with bark. To calculate total biomass, an equation was developed to estimate root biomass as a function of aboveground biomass. Changes of BEF with stand variables were analyzed. Strong relationships were observed between BEF and stand age, stand basal area, stand volume and dominant height. Consequently, an equation to predict BEF as a function of stand variables was fitted, and dominant height was selected as the predictor stand variable. Estimates of total stand biomass based on individual tree allometric equations were compared with estimates obtained with a constant BEF (0.77), used in the Portuguese National Inventory Report on Greenhouse Gases, and with estimates obtained using the dominant height-dependent BEF equation developed in this work. The BEF prediction model proposed in this work may be used to improve E. globulus Portuguese biomass estimates when tree allometric equations cannot be used. |
|---|---|
| Autores principais: | Soares, Paula |
| Outros Autores: | Tomé, Margarida |
| Assunto: | root biomass aboveground biomass biomass expansion factors allometric equations |
| Ano: | 2012 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| _version_ | 1866810170888159232 |
|---|---|
| author | Soares, Paula |
| author2 | Tomé, Margarida |
| author2_role | author |
| author_facet | Soares, Paula Tomé, Margarida |
| author_role | author |
| contributor_name_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Soares, Paula\",\"Person.identifier.orcid\":\"0000-0002-7603-5467\"},{\"Person.name\":\"Tomé, Margarida\",\"Person.identifier.orcid\":\"0000-0002-6242-8593\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| datacite.creators.creator.creatorName.fl_str_mv | Soares, Paula Tomé, Margarida |
| datacite.date.Accepted.fl_str_mv | 2012-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2012-09-14T13:43:31Z |
| datacite.date.embargoed.fl_str_mv | 2012-09-14T13:43:31Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | root biomass aboveground biomass biomass expansion factors allometric equations |
| datacite.titles.title.fl_str_mv | Biomass expansion factors for Eucalyptus globulus stands in Portugal Factors de expansion de la biomasa de rodales de Eucalyptus globulus en Portugal |
| dc.contributor.none.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| dc.creator.none.fl_str_mv | Soares, Paula Tomé, Margarida |
| dc.date.Accepted.fl_str_mv | 2012-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2012-09-14T13:43:31Z |
| dc.date.embargoed.fl_str_mv | 2012-09-14T13:43:31Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.5/4670 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | INIA |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | root biomass aboveground biomass biomass expansion factors allometric equations |
| dc.title.fl_str_mv | Biomass expansion factors for Eucalyptus globulus stands in Portugal Factors de expansion de la biomasa de rodales de Eucalyptus globulus en Portugal |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | One of several procedures for estimating carbon stocks in forests is the estimation of tree or stand biomass based on forest inventory data. The two approaches normally used to convert field measurements of trees to stand biomass values are allometric biomass equations and biomass expansion factors (BEFs). BEFs are used in published National Forest Inventory results in which biomass is not estimated or as a complement of growth models that do not include biomass predictions. In this paper, the effectiveness of BEFs for estimating total stand biomass in Portuguese Eucalyptus globulus plantations was analyzed. Here, BEF is defined as the ratio of total stand biomass (aboveground biomass plus root biomass) to stand volume with bark. To calculate total biomass, an equation was developed to estimate root biomass as a function of aboveground biomass. Changes of BEF with stand variables were analyzed. Strong relationships were observed between BEF and stand age, stand basal area, stand volume and dominant height. Consequently, an equation to predict BEF as a function of stand variables was fitted, and dominant height was selected as the predictor stand variable. Estimates of total stand biomass based on individual tree allometric equations were compared with estimates obtained with a constant BEF (0.77), used in the Portuguese National Inventory Report on Greenhouse Gases, and with estimates obtained using the dominant height-dependent BEF equation developed in this work. The BEF prediction model proposed in this work may be used to improve E. globulus Portuguese biomass estimates when tree allometric equations cannot be used. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ulisboa.pt/bitstreams/ebebd5dd-ceeb-47d8-af09-cfa9e7601a80/download |
| id | ul_d3a8990e93bb9eef1fdca4e31c0f4a34 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.5/4670 |
| instacron_str | ul |
| institution | Universidade de Lisboa |
| instname_str | Universidade de Lisboa |
| language | eng |
| network_acronym_str | ul |
| network_name_str | Repositório da Universidade de Lisboa |
| oai_identifier_str | oai:repositorio.ulisboa.pt:10400.5/4670 |
| organization_str_mv | urn:organizationAcronym:ul |
| person_str_mv | Soares, Paula Soares, Paula https://www.ciencia-id.pt/0219-879B-E8AA 0219-879B-E8AA http://orcid.org/0000-0002-7603-5467 0000-0002-7603-5467 Tomé, Margarida Tomé, Margarida https://www.ciencia-id.pt/A814-5B5A-D2C5 A814-5B5A-D2C5 http://orcid.org/0000-0002-6242-8593 0000-0002-6242-8593 |
| publishDate | 2012 |
| publisher.none.fl_str_mv | INIA |
| reponame_str | Repositório da Universidade de Lisboa |
| repository_id_str | urn:repositoryAcronym:ul |
| service_str_mv | urn:repositoryAcronym:ul |
| spelling | engINIAporOne of several procedures for estimating carbon stocks in forests is the estimation of tree or stand biomass based on forest inventory data. The two approaches normally used to convert field measurements of trees to stand biomass values are allometric biomass equations and biomass expansion factors (BEFs). BEFs are used in published National Forest Inventory results in which biomass is not estimated or as a complement of growth models that do not include biomass predictions. In this paper, the effectiveness of BEFs for estimating total stand biomass in Portuguese Eucalyptus globulus plantations was analyzed. Here, BEF is defined as the ratio of total stand biomass (aboveground biomass plus root biomass) to stand volume with bark. To calculate total biomass, an equation was developed to estimate root biomass as a function of aboveground biomass. Changes of BEF with stand variables were analyzed. Strong relationships were observed between BEF and stand age, stand basal area, stand volume and dominant height. Consequently, an equation to predict BEF as a function of stand variables was fitted, and dominant height was selected as the predictor stand variable. Estimates of total stand biomass based on individual tree allometric equations were compared with estimates obtained with a constant BEF (0.77), used in the Portuguese National Inventory Report on Greenhouse Gases, and with estimates obtained using the dominant height-dependent BEF equation developed in this work. The BEF prediction model proposed in this work may be used to improve E. globulus Portuguese biomass estimates when tree allometric equations cannot be used.application/pdfporBiomass expansion factors for Eucalyptus globulus stands in PortugalAlternativeTitleporFactors de expansion de la biomasa de rodales de Eucalyptus globulus en PortugalPersonalSoares, PaulaDSpacehttp://dspace.org/items/9b96eb5a-3ccf-4974-b302-cdda02af8f02DSpacehttp://dspace.org/items/9b96eb5a-3ccf-4974-b302-cdda02af8f02SoaresPaulaCiência IDhttps://www.ciencia-id.pt0219-879B-E8AAORCIDhttp://orcid.org0000-0002-7603-5467Researcher IDhttps://www.researcherid.comF-8251-2010Scopus Author IDhttps://www.scopus.com55702522029PersonalTomé, MargaridaDSpacehttp://dspace.org/items/52db9846-1afa-4459-b2ee-cfe7b00a557eDSpacehttp://dspace.org/items/52db9846-1afa-4459-b2ee-cfe7b00a557eBranco de Brito Tavares ToméMaria MargaridaCiência IDhttps://www.ciencia-id.ptA814-5B5A-D2C5ORCIDhttp://orcid.org0000-0002-6242-8593HostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@reitoria.ulisboa.ptrepositorio@reitoria.ulisboa.ptISSNIsPartOf2171-98452012-09-14T13:43:31Z20122012-01-01T00:00:00ZHandlehttp://hdl.handle.net/10400.5/4670http://purl.org/coar/access_right/c_abf2open accessroot biomassaboveground biomassbiomass expansion factorsallometric equations128756 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/ebebd5dd-ceeb-47d8-af09-cfa9e7601a80/downloadForest Systems21 (1)141152Espanha |
| spellingShingle | Biomass expansion factors for Eucalyptus globulus stands in Portugal Soares, Paula root biomass aboveground biomass biomass expansion factors allometric equations |
| status | SINGLETON |
| subject.fl_str_mv | root biomass aboveground biomass biomass expansion factors allometric equations |
| title | Biomass expansion factors for Eucalyptus globulus stands in Portugal |
| title_full | Biomass expansion factors for Eucalyptus globulus stands in Portugal |
| title_fullStr | Biomass expansion factors for Eucalyptus globulus stands in Portugal |
| title_full_unstemmed | Biomass expansion factors for Eucalyptus globulus stands in Portugal |
| title_short | Biomass expansion factors for Eucalyptus globulus stands in Portugal |
| title_sort | Biomass expansion factors for Eucalyptus globulus stands in Portugal |
| topic | root biomass aboveground biomass biomass expansion factors allometric equations |
| topic_facet | root biomass aboveground biomass biomass expansion factors allometric equations |
| url | http://hdl.handle.net/10400.5/4670 |
| visible | 1 |