Comparative study of phytosociological structure of two fragments of Caatinga in different levels of conservation

Detalhes bibliográficos
Autor(a) principal: Calixto Júnior, João Tavares
Data de Publicação: 2014
Outros Autores: Drumond, Marcos Antônio
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/670
Resumo: The objective of this work was the comparison of vegetation structure of two Caatinga fragments with primary and secondary levels of ecological succession, located at Embrapa Semiarido, Petrolina, State of Pernambuco, Brazil. For floristic survey it was used the method of plots, where 10 sampling units of 8 m x 40 m randomly distributed were plotted. All living individuals with diameter at ground level (DGL) ≥ 3 cm were inventoried and also measured their total heights. We observed significant differences in the diametric structure, but the distribution of hypsometric frequency showed that the majority of individuals in both areas were small-sized (< 5 m). Through similarity analysis and principal coordinates, we observed the formation of three distinct groups when compared to other surveys in Caatinga sensu stricto. The results showed that the studied areas have floristic richness compatible with Caatinga environments, the fragments are in early stages (Area I) and intermediate succession (Area II) and 30 years of regeneration were not enough for area I to achieve a level of development similar to the ecologically better conserved area.
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spelling Comparative study of phytosociological structure of two fragments of Caatinga in different levels of conservationEstudo comparativo da estrutura fitossociológica de dois fragmentos de Caatinga em níveis diferentes de conservaçãoThorny deciduous vegetationPhytosociologyEcological sucessionVegetação caducifólia espinhosaFitossociologiaSucessão ecológicaThe objective of this work was the comparison of vegetation structure of two Caatinga fragments with primary and secondary levels of ecological succession, located at Embrapa Semiarido, Petrolina, State of Pernambuco, Brazil. For floristic survey it was used the method of plots, where 10 sampling units of 8 m x 40 m randomly distributed were plotted. All living individuals with diameter at ground level (DGL) ≥ 3 cm were inventoried and also measured their total heights. We observed significant differences in the diametric structure, but the distribution of hypsometric frequency showed that the majority of individuals in both areas were small-sized (< 5 m). Through similarity analysis and principal coordinates, we observed the formation of three distinct groups when compared to other surveys in Caatinga sensu stricto. The results showed that the studied areas have floristic richness compatible with Caatinga environments, the fragments are in early stages (Area I) and intermediate succession (Area II) and 30 years of regeneration were not enough for area I to achieve a level of development similar to the ecologically better conserved area.Objetivou-se neste trabalho, o comparativo da estrutura fitossociológica de dois fragmentos de Caatinga com níveis de sucessão ecológica primária e secundária localizados na Embrapa Semiárido, Petrolina, PE. No levantamento florístico utilizouse o método das parcelas, onde foram plotadas 10 unidades amostrais de 8 m x 40 m distribuídas de forma aleatória. Todos os indivíduos vivos com diâmetro ao nível do solo (DNS) ≥ 3 cm foram inventariados, sendo medidas também as suas alturas totais. Observaram-se diferenças significativas na estrutura diamétrica, mas a distribuição da frequência hipsométrica mostrou que a maioria dos indivíduos nas duas áreas apresentou pequeno porte (< 5 m). Através da análise de similaridade e das coordenadas principais observou-se a formação de três grupos distintos quando comparadas a outros levantamentos em Caatinga sensu stricto. Os resultados evidenciaram que as áreas estudadas apresentam riqueza de espécies compatível a ambientes de Caatinga, que os fragmentos se encontram em estádio inicial (Área I) e intermediário de sucessão (Área II) e que 30 anos de regeneração não foram suficientes para a Área I alcançar um nível de desenvolvimento ecológico semelhante à área melhor conservada.Embrapa Florestas2014-12-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/67010.4336/2014.pfb.34.80.670Pesquisa Florestal Brasileira; v. 34 n. 80 (2014): out./dez.; 345-355Pesquisa Florestal Brasileira; Vol. 34 No. 80 (2014): out./dez.; 345-3551983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/670/384Calixto Júnior, João TavaresDrumond, Marcos Antônioinfo:eu-repo/semantics/openAccess2017-04-28T12:49:00Zoai:pfb.cnpf.embrapa.br/pfb:article/670Revistahttps://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:2017-04-28T12:49Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Comparative study of phytosociological structure of two fragments of Caatinga in different levels of conservation
Estudo comparativo da estrutura fitossociológica de dois fragmentos de Caatinga em níveis diferentes de conservação
title Comparative study of phytosociological structure of two fragments of Caatinga in different levels of conservation
spellingShingle Comparative study of phytosociological structure of two fragments of Caatinga in different levels of conservation
Calixto Júnior, João Tavares
Thorny deciduous vegetation
Phytosociology
Ecological sucession
Vegetação caducifólia espinhosa
Fitossociologia
Sucessão ecológica
title_short Comparative study of phytosociological structure of two fragments of Caatinga in different levels of conservation
title_full Comparative study of phytosociological structure of two fragments of Caatinga in different levels of conservation
title_fullStr Comparative study of phytosociological structure of two fragments of Caatinga in different levels of conservation
title_full_unstemmed Comparative study of phytosociological structure of two fragments of Caatinga in different levels of conservation
title_sort Comparative study of phytosociological structure of two fragments of Caatinga in different levels of conservation
author Calixto Júnior, João Tavares
author_facet Calixto Júnior, João Tavares
Drumond, Marcos Antônio
author_role author
author2 Drumond, Marcos Antônio
author2_role author
dc.contributor.author.fl_str_mv Calixto Júnior, João Tavares
Drumond, Marcos Antônio
dc.subject.por.fl_str_mv Thorny deciduous vegetation
Phytosociology
Ecological sucession
Vegetação caducifólia espinhosa
Fitossociologia
Sucessão ecológica
topic Thorny deciduous vegetation
Phytosociology
Ecological sucession
Vegetação caducifólia espinhosa
Fitossociologia
Sucessão ecológica
description The objective of this work was the comparison of vegetation structure of two Caatinga fragments with primary and secondary levels of ecological succession, located at Embrapa Semiarido, Petrolina, State of Pernambuco, Brazil. For floristic survey it was used the method of plots, where 10 sampling units of 8 m x 40 m randomly distributed were plotted. All living individuals with diameter at ground level (DGL) ≥ 3 cm were inventoried and also measured their total heights. We observed significant differences in the diametric structure, but the distribution of hypsometric frequency showed that the majority of individuals in both areas were small-sized (< 5 m). Through similarity analysis and principal coordinates, we observed the formation of three distinct groups when compared to other surveys in Caatinga sensu stricto. The results showed that the studied areas have floristic richness compatible with Caatinga environments, the fragments are in early stages (Area I) and intermediate succession (Area II) and 30 years of regeneration were not enough for area I to achieve a level of development similar to the ecologically better conserved area.
publishDate 2014
dc.date.none.fl_str_mv 2014-12-26
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/670
10.4336/2014.pfb.34.80.670
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/670
identifier_str_mv 10.4336/2014.pfb.34.80.670
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/670/384
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. 34 n. 80 (2014): out./dez.; 345-355
Pesquisa Florestal Brasileira; Vol. 34 No. 80 (2014): out./dez.; 345-355
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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