Determining the optimal length of transects for estimating coarse woody debris

Detalhes bibliográficos
Autor(a) principal: Cardoso, Denise Jeton
Data de Publicação: 2013
Outros Autores: Vibrans, Alexander Christian, Rezende, Alba Valéria, Pareyn, Frans Germain Corneel, Freitas, Joberto Veloso, Rosot, Maria Augusta Doetzer, Oliveira, Yeda Maria Malheiros de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Florestal Brasileira (Online)
Texto Completo: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/391
Resumo: The objective of this paper was to evaluate different transect lengths for determination of coarse woody debris on the ground. The data came from 10-meter-long transects, measured during the National Forest Inventory methodology test in the Amazon, Cerrado and Caatinga, and the forest inventory in Santa Catarina State, representing Araucaria Forest and Deciduous Forest. The comparison among the coefficient of variation obtained for transects from 10 to 150 m long indicates that the greatest changes in this estimator occur in the interval from 10 up to 50 m, stabilizing from this length. The adoption of 10 m transects in the typologies evaluated is recommended, because with this length there is a 35% reduction in total walking distance in relation to the 20 m transects to obtain the same sampling error.
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spelling Determining the optimal length of transects for estimating coarse woody debrisDeterminação do comprimento ótimo de transectos para estimativa de necromassa florestalBiomassa caídaMédodo do interceptoAmostragemDeadwoodLine interceptmethod SamplingThe objective of this paper was to evaluate different transect lengths for determination of coarse woody debris on the ground. The data came from 10-meter-long transects, measured during the National Forest Inventory methodology test in the Amazon, Cerrado and Caatinga, and the forest inventory in Santa Catarina State, representing Araucaria Forest and Deciduous Forest. The comparison among the coefficient of variation obtained for transects from 10 to 150 m long indicates that the greatest changes in this estimator occur in the interval from 10 up to 50 m, stabilizing from this length. The adoption of 10 m transects in the typologies evaluated is recommended, because with this length there is a 35% reduction in total walking distance in relation to the 20 m transects to obtain the same sampling error.O objetivo deste trabalho foi avaliar diferentes comprimentos de transecto para determinação da necromassa florestal caída sobre o chão. Os dados são provenientes de transectos de 10 metros, medidos durante o teste de metodologia do Inventário Florestal Nacional na Amazônia, Cerrado e Caatinga, e no inventário em Santa Catarina, representando Floresta Ombrófila Mista e Floresta Estacional Decidual. O comparativo do coeficiente de variação, para transectos de 10 a 150 m indica que as maiores alterações desse estimador ocorrem no intervalo de 10 até 50 m, estabilizando-se a partir deste comprimento. A adoção de transectos de 10 m nas tipologias avaliadas é recomendável, pois com este comprimento ocorre uma redução de 35% na distância total de caminhamento em relação aos transectos de 20 m, para obter o mesmo erro amostral.Embrapa Florestas2013-07-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/39110.4336/2013.pfb.33.75.391Pesquisa Florestal Brasileira; v. 33 n. 75 (2013): jul./set.; 317-325Pesquisa Florestal Brasileira; Vol. 33 No. 75 (2013): jul./set.; 317-3251983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/391/319Cardoso, Denise JetonVibrans, Alexander ChristianRezende, Alba ValériaPareyn, Frans Germain CorneelFreitas, Joberto VelosoRosot, Maria Augusta DoetzerOliveira, Yeda Maria Malheiros deinfo:eu-repo/semantics/openAccess2017-04-28T12:50:27Zoai:pfb.cnpf.embrapa.br/pfb:article/391Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2017-04-28T12:50:27Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Determining the optimal length of transects for estimating coarse woody debris
Determinação do comprimento ótimo de transectos para estimativa de necromassa florestal
title Determining the optimal length of transects for estimating coarse woody debris
spellingShingle Determining the optimal length of transects for estimating coarse woody debris
Cardoso, Denise Jeton
Biomassa caída
Médodo do intercepto
Amostragem
Deadwood
Line intercept
method Sampling
title_short Determining the optimal length of transects for estimating coarse woody debris
title_full Determining the optimal length of transects for estimating coarse woody debris
title_fullStr Determining the optimal length of transects for estimating coarse woody debris
title_full_unstemmed Determining the optimal length of transects for estimating coarse woody debris
title_sort Determining the optimal length of transects for estimating coarse woody debris
author Cardoso, Denise Jeton
author_facet Cardoso, Denise Jeton
Vibrans, Alexander Christian
Rezende, Alba Valéria
Pareyn, Frans Germain Corneel
Freitas, Joberto Veloso
Rosot, Maria Augusta Doetzer
Oliveira, Yeda Maria Malheiros de
author_role author
author2 Vibrans, Alexander Christian
Rezende, Alba Valéria
Pareyn, Frans Germain Corneel
Freitas, Joberto Veloso
Rosot, Maria Augusta Doetzer
Oliveira, Yeda Maria Malheiros de
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Cardoso, Denise Jeton
Vibrans, Alexander Christian
Rezende, Alba Valéria
Pareyn, Frans Germain Corneel
Freitas, Joberto Veloso
Rosot, Maria Augusta Doetzer
Oliveira, Yeda Maria Malheiros de
dc.subject.por.fl_str_mv Biomassa caída
Médodo do intercepto
Amostragem
Deadwood
Line intercept
method Sampling
topic Biomassa caída
Médodo do intercepto
Amostragem
Deadwood
Line intercept
method Sampling
description The objective of this paper was to evaluate different transect lengths for determination of coarse woody debris on the ground. The data came from 10-meter-long transects, measured during the National Forest Inventory methodology test in the Amazon, Cerrado and Caatinga, and the forest inventory in Santa Catarina State, representing Araucaria Forest and Deciduous Forest. The comparison among the coefficient of variation obtained for transects from 10 to 150 m long indicates that the greatest changes in this estimator occur in the interval from 10 up to 50 m, stabilizing from this length. The adoption of 10 m transects in the typologies evaluated is recommended, because with this length there is a 35% reduction in total walking distance in relation to the 20 m transects to obtain the same sampling error.
publishDate 2013
dc.date.none.fl_str_mv 2013-07-30
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 https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/391
10.4336/2013.pfb.33.75.391
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/391
identifier_str_mv 10.4336/2013.pfb.33.75.391
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/391/319
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Embrapa Florestas
publisher.none.fl_str_mv Embrapa Florestas
dc.source.none.fl_str_mv Pesquisa Florestal Brasileira; v. 33 n. 75 (2013): jul./set.; 317-325
Pesquisa Florestal Brasileira; Vol. 33 No. 75 (2013): jul./set.; 317-325
1983-2605
1809-3647
reponame:Pesquisa Florestal Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Florestal Brasileira (Online)
collection Pesquisa Florestal Brasileira (Online)
repository.name.fl_str_mv Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br
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