Campos do bioma Pampa no contexto de silvicultura: uso da terra, manejo e fatores ambientais como determinantes da vegetação campestre
Ano de defesa: | 2016 |
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Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Não Informado pela instituição
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Programa de Pós-Graduação: |
Não Informado pela instituição
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Departamento: |
Não Informado pela instituição
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País: |
Não Informado pela instituição
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Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Link de acesso: | http://hdl.handle.net/10183/202663 |
Resumo: | South American Pampa grasslands have been intensely converted into afforestation. While necessity for restoration grows, no information on restoration potential of grasslands after afforestation exists. We evaluated the spontaneous recovery of grasslands with a long history (50 years) of eucalyptus plantation. We sampled grassland vegetation at post-eucalyptus sites (with and without resprouting) ten years after clearclutting and in natural grasslands. Species richness and vegetation cover were higher in reference grassland than in resprout-areas, but did not differ from post-eucalyptus areas. Exotic species cover was significantly higher in areas with afforestation history. In terms of total composition, natural grasslands differed significantly from areas with past plantation use, with some vicinty of grassland types in the ordination diagram. Indicator species analyses revealed considerable differences in typical species as well as functional group composition when comparing the reference grassland to the grassland with history of afforestation. In conclusion, vegetation development led to grassland communities that are still quite distinct from reference sites. Likely, it is the specificity of grassland management, which was not controlled in our study, that determines vegetation trajectories in time. The influence of management for grassland recovery and restoration needs to be addressed in more studies. |
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Torchelsen, Fábio PiccinOverbeck, Gerhard Ernst2019-12-18T03:59:25Z2016http://hdl.handle.net/10183/202663001101839South American Pampa grasslands have been intensely converted into afforestation. While necessity for restoration grows, no information on restoration potential of grasslands after afforestation exists. We evaluated the spontaneous recovery of grasslands with a long history (50 years) of eucalyptus plantation. We sampled grassland vegetation at post-eucalyptus sites (with and without resprouting) ten years after clearclutting and in natural grasslands. Species richness and vegetation cover were higher in reference grassland than in resprout-areas, but did not differ from post-eucalyptus areas. Exotic species cover was significantly higher in areas with afforestation history. In terms of total composition, natural grasslands differed significantly from areas with past plantation use, with some vicinty of grassland types in the ordination diagram. Indicator species analyses revealed considerable differences in typical species as well as functional group composition when comparing the reference grassland to the grassland with history of afforestation. In conclusion, vegetation development led to grassland communities that are still quite distinct from reference sites. Likely, it is the specificity of grassland management, which was not controlled in our study, that determines vegetation trajectories in time. The influence of management for grassland recovery and restoration needs to be addressed in more studies.application/pdfporPastagemManejoBiodiversidadeBioma PampaConservationPampaRestorationSouthern BrazilVegetation managementCampos do bioma Pampa no contexto de silvicultura: uso da terra, manejo e fatores ambientais como determinantes da vegetação campestreinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisUniversidade Federal do Rio Grande do SulInstituto de BiociênciasPrograma de Pós-Graduação em BotânicaPorto Alegre, BR-RS2016doutoradoinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001101839.pdf.txt001101839.pdf.txtExtracted Texttext/plain178471http://www.lume.ufrgs.br/bitstream/10183/202663/2/001101839.pdf.txt727a9f5d79111409183b1be904bf18ecMD52ORIGINAL001101839.pdfTexto completoapplication/pdf1870748http://www.lume.ufrgs.br/bitstream/10183/202663/1/001101839.pdfff2bc1123e6dc070f3725c6876ed9368MD5110183/2026632020-01-17 05:09:04.291647oai:www.lume.ufrgs.br:10183/202663Biblioteca Digital de Teses e Dissertaçõeshttps://lume.ufrgs.br/handle/10183/2PUBhttps://lume.ufrgs.br/oai/requestlume@ufrgs.br||lume@ufrgs.bropendoar:18532020-01-17T07:09:04Biblioteca Digital de Teses e Dissertações da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Campos do bioma Pampa no contexto de silvicultura: uso da terra, manejo e fatores ambientais como determinantes da vegetação campestre |
title |
Campos do bioma Pampa no contexto de silvicultura: uso da terra, manejo e fatores ambientais como determinantes da vegetação campestre |
spellingShingle |
Campos do bioma Pampa no contexto de silvicultura: uso da terra, manejo e fatores ambientais como determinantes da vegetação campestre Torchelsen, Fábio Piccin Pastagem Manejo Biodiversidade Bioma Pampa Conservation Pampa Restoration Southern Brazil Vegetation management |
title_short |
Campos do bioma Pampa no contexto de silvicultura: uso da terra, manejo e fatores ambientais como determinantes da vegetação campestre |
title_full |
Campos do bioma Pampa no contexto de silvicultura: uso da terra, manejo e fatores ambientais como determinantes da vegetação campestre |
title_fullStr |
Campos do bioma Pampa no contexto de silvicultura: uso da terra, manejo e fatores ambientais como determinantes da vegetação campestre |
title_full_unstemmed |
Campos do bioma Pampa no contexto de silvicultura: uso da terra, manejo e fatores ambientais como determinantes da vegetação campestre |
title_sort |
Campos do bioma Pampa no contexto de silvicultura: uso da terra, manejo e fatores ambientais como determinantes da vegetação campestre |
author |
Torchelsen, Fábio Piccin |
author_facet |
Torchelsen, Fábio Piccin |
author_role |
author |
dc.contributor.author.fl_str_mv |
Torchelsen, Fábio Piccin |
dc.contributor.advisor1.fl_str_mv |
Overbeck, Gerhard Ernst |
contributor_str_mv |
Overbeck, Gerhard Ernst |
dc.subject.por.fl_str_mv |
Pastagem Manejo Biodiversidade Bioma Pampa |
topic |
Pastagem Manejo Biodiversidade Bioma Pampa Conservation Pampa Restoration Southern Brazil Vegetation management |
dc.subject.eng.fl_str_mv |
Conservation Pampa Restoration Southern Brazil Vegetation management |
description |
South American Pampa grasslands have been intensely converted into afforestation. While necessity for restoration grows, no information on restoration potential of grasslands after afforestation exists. We evaluated the spontaneous recovery of grasslands with a long history (50 years) of eucalyptus plantation. We sampled grassland vegetation at post-eucalyptus sites (with and without resprouting) ten years after clearclutting and in natural grasslands. Species richness and vegetation cover were higher in reference grassland than in resprout-areas, but did not differ from post-eucalyptus areas. Exotic species cover was significantly higher in areas with afforestation history. In terms of total composition, natural grasslands differed significantly from areas with past plantation use, with some vicinty of grassland types in the ordination diagram. Indicator species analyses revealed considerable differences in typical species as well as functional group composition when comparing the reference grassland to the grassland with history of afforestation. In conclusion, vegetation development led to grassland communities that are still quite distinct from reference sites. Likely, it is the specificity of grassland management, which was not controlled in our study, that determines vegetation trajectories in time. The influence of management for grassland recovery and restoration needs to be addressed in more studies. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016 |
dc.date.accessioned.fl_str_mv |
2019-12-18T03:59:25Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/doctoralThesis |
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publishedVersion |
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http://hdl.handle.net/10183/202663 |
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application/pdf |
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