Allometric models for estimating the phytomass of a secondary Atlantic Forest area of southeastern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Biota Neotropica |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000400012 |
Resumo: | The purpose of this study was to develop and validate equations to estimate the aboveground phytomass of a 30 years old plot of Atlantic Forest. In two plots of 100 m², a total of 82 trees were cut down at ground level. For each tree, height and diameter were measured. Leaves and woody material were separated in order to determine their fresh weights in field conditions. Samples of each fraction were oven dried at 80 °C to constant weight to determine their dry weight. Tree data were divided into two random samples. One sample was used for the development of the regression equations, and the other for validation. The models were developed using single linear regression analysis, where the dependent variable was the dry mass, and the independent variables were height (h), diameter (d) and d²h. The validation was carried out using Pearson correlation coefficient, paired t-Student test and standard error of estimation. The best equations to estimate aboveground phytomass were: lnDW = -3.068+2.522lnd (r² = 0.91; s y/x = 0.67) and lnDW = -3.676+0.951ln d²h (r² = 0.94; s y/x = 0.56). |
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oai:scielo:S1676-06032008000400012 |
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FAPESP-1 |
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Biota Neotropica |
repository_id_str |
|
spelling |
Allometric models for estimating the phytomass of a secondary Atlantic Forest area of southeastern Brazilbiomassallometrycarbonsecondary Atlantic Forestforest biomass estimationThe purpose of this study was to develop and validate equations to estimate the aboveground phytomass of a 30 years old plot of Atlantic Forest. In two plots of 100 m², a total of 82 trees were cut down at ground level. For each tree, height and diameter were measured. Leaves and woody material were separated in order to determine their fresh weights in field conditions. Samples of each fraction were oven dried at 80 °C to constant weight to determine their dry weight. Tree data were divided into two random samples. One sample was used for the development of the regression equations, and the other for validation. The models were developed using single linear regression analysis, where the dependent variable was the dry mass, and the independent variables were height (h), diameter (d) and d²h. The validation was carried out using Pearson correlation coefficient, paired t-Student test and standard error of estimation. The best equations to estimate aboveground phytomass were: lnDW = -3.068+2.522lnd (r² = 0.91; s y/x = 0.67) and lnDW = -3.676+0.951ln d²h (r² = 0.94; s y/x = 0.56).Instituto Virtual da Biodiversidade | BIOTA - FAPESP2008-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000400012Biota Neotropica v.8 n.4 2008reponame:Biota Neotropicainstname:Instituto Virtual da Biodiversidade (BIOTA-FAPESP)instacron:BIOTA - FAPESP10.1590/S1676-06032008000400012info:eu-repo/semantics/openAccessBurger,Déborah MoreiraDelitti,Welington Braz Carvalhoeng2009-03-19T00:00:00Zoai:scielo:S1676-06032008000400012Revistahttps://www.biotaneotropica.org.br/v20n1/pt/https://old.scielo.br/oai/scielo-oai.php||juliosa@unifap.br1676-06111676-0611opendoar:2009-03-19T00:00Biota Neotropica - Instituto Virtual da Biodiversidade (BIOTA-FAPESP)false |
dc.title.none.fl_str_mv |
Allometric models for estimating the phytomass of a secondary Atlantic Forest area of southeastern Brazil |
title |
Allometric models for estimating the phytomass of a secondary Atlantic Forest area of southeastern Brazil |
spellingShingle |
Allometric models for estimating the phytomass of a secondary Atlantic Forest area of southeastern Brazil Burger,Déborah Moreira biomass allometry carbon secondary Atlantic Forest forest biomass estimation |
title_short |
Allometric models for estimating the phytomass of a secondary Atlantic Forest area of southeastern Brazil |
title_full |
Allometric models for estimating the phytomass of a secondary Atlantic Forest area of southeastern Brazil |
title_fullStr |
Allometric models for estimating the phytomass of a secondary Atlantic Forest area of southeastern Brazil |
title_full_unstemmed |
Allometric models for estimating the phytomass of a secondary Atlantic Forest area of southeastern Brazil |
title_sort |
Allometric models for estimating the phytomass of a secondary Atlantic Forest area of southeastern Brazil |
author |
Burger,Déborah Moreira |
author_facet |
Burger,Déborah Moreira Delitti,Welington Braz Carvalho |
author_role |
author |
author2 |
Delitti,Welington Braz Carvalho |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Burger,Déborah Moreira Delitti,Welington Braz Carvalho |
dc.subject.por.fl_str_mv |
biomass allometry carbon secondary Atlantic Forest forest biomass estimation |
topic |
biomass allometry carbon secondary Atlantic Forest forest biomass estimation |
description |
The purpose of this study was to develop and validate equations to estimate the aboveground phytomass of a 30 years old plot of Atlantic Forest. In two plots of 100 m², a total of 82 trees were cut down at ground level. For each tree, height and diameter were measured. Leaves and woody material were separated in order to determine their fresh weights in field conditions. Samples of each fraction were oven dried at 80 °C to constant weight to determine their dry weight. Tree data were divided into two random samples. One sample was used for the development of the regression equations, and the other for validation. The models were developed using single linear regression analysis, where the dependent variable was the dry mass, and the independent variables were height (h), diameter (d) and d²h. The validation was carried out using Pearson correlation coefficient, paired t-Student test and standard error of estimation. The best equations to estimate aboveground phytomass were: lnDW = -3.068+2.522lnd (r² = 0.91; s y/x = 0.67) and lnDW = -3.676+0.951ln d²h (r² = 0.94; s y/x = 0.56). |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-12-01 |
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=S1676-06032008000400012 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000400012 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1676-06032008000400012 |
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 Virtual da Biodiversidade | BIOTA - FAPESP |
publisher.none.fl_str_mv |
Instituto Virtual da Biodiversidade | BIOTA - FAPESP |
dc.source.none.fl_str_mv |
Biota Neotropica v.8 n.4 2008 reponame:Biota Neotropica instname:Instituto Virtual da Biodiversidade (BIOTA-FAPESP) instacron:BIOTA - FAPESP |
instname_str |
Instituto Virtual da Biodiversidade (BIOTA-FAPESP) |
instacron_str |
BIOTA - FAPESP |
institution |
BIOTA - FAPESP |
reponame_str |
Biota Neotropica |
collection |
Biota Neotropica |
repository.name.fl_str_mv |
Biota Neotropica - Instituto Virtual da Biodiversidade (BIOTA-FAPESP) |
repository.mail.fl_str_mv |
||juliosa@unifap.br |
_version_ |
1754575896379916288 |