Spatial continuity in a mixed ombrophilous forest with different size and shape of sample units

Detalhes bibliográficos
Autor(a) principal: Roveda, Marcelo
Data de Publicação: 2016
Outros Autores: Figueiredo Filho, Afonso, Pelissari, Allan Libanio, Santos, Ricardo Murilo Malheiros dos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/14190
Resumo: Size and shape of sample units are fundamental for the observation of spatial continuity in native forests and important to characterize patterns structured in space by different scales. Therefore, the objective of this study was to identify the spatial continuity of number of trees and basal area, evaluating the influence of size and shape of sample units in a mixed ombrophilous forest in Paraná State, Brazil. An area of 25 hectares was divided in 50 m x 50 m and 25 m x 25 m square sample units, and also in 10 m x 50 m and 20m x 50m rectangular sample units. In these samples, the number of trees (n.ha-1) and the basal area (m².ha-1) were determined in each of them, with the possible spatial continuity analyzed by geostatistics analysis. The influence of size and shape of sample units on the spatial continuity structure was analyzed. Also, adjusted semivariograms were used to observe that the correlation between neighboring sample units for number of trees was stronger than for the basal area. However, due to the similarity of the semiovariograms, both sizes and shapes can be used to describe the spatial structure of number of trees, while the square sample units were more appropriate to describe basal area.
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spelling Spatial continuity in a mixed ombrophilous forest with different size and shape of sample unitsContinuidade espacial do número de árvores e da área basal de uma floresta ombrófila mista sob diferentes formas e tamanhos de unidades amostraisSample unitAraucaria forestGeostatisticsSemivariogramParcelas permanentesFloresta de araucáriaGeoestatísticaSemivariogramaSize and shape of sample units are fundamental for the observation of spatial continuity in native forests and important to characterize patterns structured in space by different scales. Therefore, the objective of this study was to identify the spatial continuity of number of trees and basal area, evaluating the influence of size and shape of sample units in a mixed ombrophilous forest in Paraná State, Brazil. An area of 25 hectares was divided in 50 m x 50 m and 25 m x 25 m square sample units, and also in 10 m x 50 m and 20m x 50m rectangular sample units. In these samples, the number of trees (n.ha-1) and the basal area (m².ha-1) were determined in each of them, with the possible spatial continuity analyzed by geostatistics analysis. The influence of size and shape of sample units on the spatial continuity structure was analyzed. Also, adjusted semivariograms were used to observe that the correlation between neighboring sample units for number of trees was stronger than for the basal area. However, due to the similarity of the semiovariograms, both sizes and shapes can be used to describe the spatial structure of number of trees, while the square sample units were more appropriate to describe basal area.O tamanho e a forma das unidades amostrais são fundamentais para a percepção da continuidade espacial nas florestas nativas, em que torna-se importante caracterizar os padrões dos fenômenos estruturados no espaço sob diferentes escalas. Dessa forma, o objetivo deste trabalho foi identificar a continuidade espacial do número de árvores e da área basal e avaliar a influência do tamanho e da forma das unidades amostrais em um fragmento de Floresta Ombrófila Mista no estado do Paraná. Uma área de 25 hectares de parcelas permanentes foi dividida em unidades amostrais quadradas de 50 m x 50 m e 25 m x 25 m e, também, retangulares de 10 m x 50 m e 20 m x 50 m, sendo nelas determinado o número de árvores (n.ha-1) e área basal (m². ha-1), com a possível continuidade espacial analisada por meio de análise geoestatística. Foi identificada a influência do tamanho e da forma das unidades de amostra sob a estrutura da continuidade espacial. Ainda, por meio dos semivariogramas ajustados, foi observado que a correlação entre unidades de amostra vizinhas foi mais forte para o número de árvores, quando comparada à área basal. No entanto, devido à semelhança dos semivariogramas, ambos os formatos e tamanhos podem ser utilizados para descrever a estrutura espacial do número de árvores, enquanto as unidades de amostras quadradas foram mais adequadas para a área basal.Universidade Federal de Lavras (UFLA)2016-06-082017-08-01T20:13:51Z2017-08-01T20:13:51Z2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfROVEDA, M. et al. Spatial continuity in a mixed ombrophilous forest with different size and shape of sample units. CERNE, Lavras, v. 22, n. 2, p. 189-196, 2016. DOI: 10.1590/01047760201622022139.http://repositorio.ufla.br/jspui/handle/1/141902317-63420104-7760reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttp://www.cerne.ufla.br/site/index.php/CERNE/article/view/1205/921Copyright (c) 2016 CERNEhttp://creativecommons.org/licenses/by/4.0/Attribution 4.0 Internationalinfo:eu-repo/semantics/openAccessRoveda, MarceloFigueiredo Filho, AfonsoPelissari, Allan LibanioSantos, Ricardo Murilo Malheiros dos2021-06-28T20:18:56Zoai:localhost:1/14190Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-06-28T20:18:56Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Spatial continuity in a mixed ombrophilous forest with different size and shape of sample units
Continuidade espacial do número de árvores e da área basal de uma floresta ombrófila mista sob diferentes formas e tamanhos de unidades amostrais
title Spatial continuity in a mixed ombrophilous forest with different size and shape of sample units
spellingShingle Spatial continuity in a mixed ombrophilous forest with different size and shape of sample units
Roveda, Marcelo
Sample unit
Araucaria forest
Geostatistics
Semivariogram
Parcelas permanentes
Floresta de araucária
Geoestatística
Semivariograma
title_short Spatial continuity in a mixed ombrophilous forest with different size and shape of sample units
title_full Spatial continuity in a mixed ombrophilous forest with different size and shape of sample units
title_fullStr Spatial continuity in a mixed ombrophilous forest with different size and shape of sample units
title_full_unstemmed Spatial continuity in a mixed ombrophilous forest with different size and shape of sample units
title_sort Spatial continuity in a mixed ombrophilous forest with different size and shape of sample units
author Roveda, Marcelo
author_facet Roveda, Marcelo
Figueiredo Filho, Afonso
Pelissari, Allan Libanio
Santos, Ricardo Murilo Malheiros dos
author_role author
author2 Figueiredo Filho, Afonso
Pelissari, Allan Libanio
Santos, Ricardo Murilo Malheiros dos
author2_role author
author
author
dc.contributor.author.fl_str_mv Roveda, Marcelo
Figueiredo Filho, Afonso
Pelissari, Allan Libanio
Santos, Ricardo Murilo Malheiros dos
dc.subject.por.fl_str_mv Sample unit
Araucaria forest
Geostatistics
Semivariogram
Parcelas permanentes
Floresta de araucária
Geoestatística
Semivariograma
topic Sample unit
Araucaria forest
Geostatistics
Semivariogram
Parcelas permanentes
Floresta de araucária
Geoestatística
Semivariograma
description Size and shape of sample units are fundamental for the observation of spatial continuity in native forests and important to characterize patterns structured in space by different scales. Therefore, the objective of this study was to identify the spatial continuity of number of trees and basal area, evaluating the influence of size and shape of sample units in a mixed ombrophilous forest in Paraná State, Brazil. An area of 25 hectares was divided in 50 m x 50 m and 25 m x 25 m square sample units, and also in 10 m x 50 m and 20m x 50m rectangular sample units. In these samples, the number of trees (n.ha-1) and the basal area (m².ha-1) were determined in each of them, with the possible spatial continuity analyzed by geostatistics analysis. The influence of size and shape of sample units on the spatial continuity structure was analyzed. Also, adjusted semivariograms were used to observe that the correlation between neighboring sample units for number of trees was stronger than for the basal area. However, due to the similarity of the semiovariograms, both sizes and shapes can be used to describe the spatial structure of number of trees, while the square sample units were more appropriate to describe basal area.
publishDate 2016
dc.date.none.fl_str_mv 2016-06-08
2017-08-01T20:13:51Z
2017-08-01T20:13:51Z
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 ROVEDA, M. et al. Spatial continuity in a mixed ombrophilous forest with different size and shape of sample units. CERNE, Lavras, v. 22, n. 2, p. 189-196, 2016. DOI: 10.1590/01047760201622022139.
http://repositorio.ufla.br/jspui/handle/1/14190
identifier_str_mv ROVEDA, M. et al. Spatial continuity in a mixed ombrophilous forest with different size and shape of sample units. CERNE, Lavras, v. 22, n. 2, p. 189-196, 2016. DOI: 10.1590/01047760201622022139.
url http://repositorio.ufla.br/jspui/handle/1/14190
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://www.cerne.ufla.br/site/index.php/CERNE/article/view/1205/921
dc.rights.driver.fl_str_mv Copyright (c) 2016 CERNE
http://creativecommons.org/licenses/by/4.0/
Attribution 4.0 International
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2016 CERNE
http://creativecommons.org/licenses/by/4.0/
Attribution 4.0 International
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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