Dinâmica da vegetação em remanescente de floresta estacional subtropical
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/3742 |
Resumo: | The aim of this work was to study vegetation groupings and their dynamics in remnant of Subtropical Seasonal Forest, of nearly 560 ha, located at the Instruction Field of Santa Maria, in Santa Maria municipality, RS. In the study area, 14 blocks of 20x100m were marked, distributed into four bands, distant 500m from each other. Each block was divided into portions of 10mx10m, resulting in 280 portions, in which was evaluated the adult vegetation, represented by individuals with CBH≥30cm. Inside these blocks, 70 portions were raffled for evaluation of understory vegetation (3,14cm≤CBH<30cm), seedling bank (h≥30cm and CBH<3,14cm) and seed rain. In the 70 raffled portions, it was also evaluated the alternation degree, land slope and the light intensity. The occurred changes in the forest shrubby-arboreal component were studied based on the structure, ingress, mortality and increment (for the seedling bank) during the period from 2008 to 2010. In a similar way, the seed rain was monitored from October 2008 to October 2010, when the absolute density and the seasonality of seed production were evaluated. In this study, the results were presented in four chapters: the aim of the first one was to determine the grouping analysis and the occurred changes in the floristic composition and vegetation structure represented by CBH≥30 cm, being verified that the area presents two characterized formations, mainly, by the forest conservation degree, named: - Secondary Forest in Intermediate Stage (SFIS) of succession, represented by bigger exploration in the past due to the easy access to the area; and Secondary Forest in Advanced Stage (SFAS) of succession, occurring in a forest area characterized by a more accentuated slope, what made timber exploitation difficult, being therefore, in a more advanced stage of succession. The second chapter dealt with the occurred changes in the understory vegetation (3,14cm≤CBH<30cm) for the two floristic groups observed in the grouping analysis. In the third chapter, it was presented the natural regeneration dynamics, represented by the seedling bank (h≥30cm e CBH<3,14cm) and the seed rain. Finally, in the fourth chapter, it was carried out a general analysis of the most abundant species dynamics in each class of vegetation, in the two observed groups in the forest. The results indicated some differences in the floristic composition and vegetation dynamics, in each group. In one hand, the SFIS presented the highest value of importance to the heliophilous species and the highest dynamics, mainly, in the individual s mortality. On the other hand, the SFAS presented heliophilous and sciaphilous species as the most important as well as the highest equilibrium in relation to ingress and mortality rates. The seed rain seemed an efficient mechanism of natural regeneration and most of the observed species in the forest s arboreal vegetation presented production seasonality. In general, the remnant of forest represents an important preservation area for the characteristic species from Subtropical Seasonal Forest and its maintenance becomes important to keep the quality of soil in the area besides of playing important environmental services to the region. |
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Dinâmica da vegetação em remanescente de floresta estacional subtropicalVegetation dynamics in remnant of subtropical seasonal forestFitossociologiaSucessãoAnálise multivariadaMortalidadeIngressoIncrementoChuva de sementesPhytosociologySuccessionMultivaried AnalysisMortalityIngressIncrementSeed rainCNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTALThe aim of this work was to study vegetation groupings and their dynamics in remnant of Subtropical Seasonal Forest, of nearly 560 ha, located at the Instruction Field of Santa Maria, in Santa Maria municipality, RS. In the study area, 14 blocks of 20x100m were marked, distributed into four bands, distant 500m from each other. Each block was divided into portions of 10mx10m, resulting in 280 portions, in which was evaluated the adult vegetation, represented by individuals with CBH≥30cm. Inside these blocks, 70 portions were raffled for evaluation of understory vegetation (3,14cm≤CBH<30cm), seedling bank (h≥30cm and CBH<3,14cm) and seed rain. In the 70 raffled portions, it was also evaluated the alternation degree, land slope and the light intensity. The occurred changes in the forest shrubby-arboreal component were studied based on the structure, ingress, mortality and increment (for the seedling bank) during the period from 2008 to 2010. In a similar way, the seed rain was monitored from October 2008 to October 2010, when the absolute density and the seasonality of seed production were evaluated. In this study, the results were presented in four chapters: the aim of the first one was to determine the grouping analysis and the occurred changes in the floristic composition and vegetation structure represented by CBH≥30 cm, being verified that the area presents two characterized formations, mainly, by the forest conservation degree, named: - Secondary Forest in Intermediate Stage (SFIS) of succession, represented by bigger exploration in the past due to the easy access to the area; and Secondary Forest in Advanced Stage (SFAS) of succession, occurring in a forest area characterized by a more accentuated slope, what made timber exploitation difficult, being therefore, in a more advanced stage of succession. The second chapter dealt with the occurred changes in the understory vegetation (3,14cm≤CBH<30cm) for the two floristic groups observed in the grouping analysis. In the third chapter, it was presented the natural regeneration dynamics, represented by the seedling bank (h≥30cm e CBH<3,14cm) and the seed rain. Finally, in the fourth chapter, it was carried out a general analysis of the most abundant species dynamics in each class of vegetation, in the two observed groups in the forest. The results indicated some differences in the floristic composition and vegetation dynamics, in each group. In one hand, the SFIS presented the highest value of importance to the heliophilous species and the highest dynamics, mainly, in the individual s mortality. On the other hand, the SFAS presented heliophilous and sciaphilous species as the most important as well as the highest equilibrium in relation to ingress and mortality rates. The seed rain seemed an efficient mechanism of natural regeneration and most of the observed species in the forest s arboreal vegetation presented production seasonality. In general, the remnant of forest represents an important preservation area for the characteristic species from Subtropical Seasonal Forest and its maintenance becomes important to keep the quality of soil in the area besides of playing important environmental services to the region.O objetivo deste trabalho foi estudar agrupamentos da vegetação e sua dinâmica, em remanescente de Floresta Estacional Subtropical, com aproximadamente 560 ha, localizado no Campo de Instrução de Santa Maria, no município de Santa Maria, RS. Na área de estudo, foram marcados 14 blocos de 20x100m, distribuídos em quatro faixas, distantes 500m entre si. Cada bloco foi dividido em parcelas de 10mx10m, resultando 280 parcelas, nas quais avaliou-se a vegetação adulta, representada pelos indivíduos com CAP≥30cm. Dentro desses blocos, ainda foram sorteadas 70 parcelas para avaliação da vegetação de sub-bosque (3,14cm≤CAP<30cm), banco de plântulas (h≥30cm e CAP<3,14cm) e chuva de sementes. Nas 70 parcelas sorteadas, avaliou-se também o grau de alteração, declividade do terreno e a intensidade luminosa. As mudanças ocorridas no componente arbóreo-arbustivo da floresta foram estudadas a partir da estrutura, ingresso, mortalidade e incremento (para o banco de plântulas), durante o período de 2008 a 2010. De forma semelhante, a chuva de sementes foi monitorada de outubro de 2008 a outubro de 2010, onde se avaliou a densidade absoluta e a sazonalidade da produção de sementes. Neste trabalho, os resultados foram apresentados em quatro capítulos: o primeiro teve por objetivo determinar a análise de agrupamentos e as mudanças ocorridas na composição florísticas e estrutura da vegetação representada por CAP≥30 cm, tendo sido verificado que a área apresenta duas formações caracterizadas, principalmente, pelo grau de conservação da floresta, denominados de:- Floresta Secundária em Estágio Médio (FSEM) de sucessão, representada pela maior exploração no passado, devido à facilidade de entrada na área; e - Floresta Secundária em Estágio Avançado (FSEA) de sucessão, ocorrente em área na floresta caracterizada por declividade mais acentuada, o que dificultou a exploração de madeira, assim estando em estágio mais avançado de sucessão. O segundo capítulo tratou das mudanças ocorridas na vegetação do subbosque (3,14cm≤CAP<30cm) para os dois grupos florísticos observados na análise de agrupamentos. No terceiro capítulo, tratou-se da dinâmica da regeneração natural, representada pelo banco de plântulas (h≥30cm e CAP<3,14cm) e chuva de sementes. E, por último, no quarto capítulo, foi realizada uma análise geral da dinâmica das espécies mais abundantes em cada classe de vegetação, nos dois grupos observados na floresta. Os resultados revelaram diferenças na composição florística e dinâmica da vegetação, em cada grupo. A FSEM apresentou maior valor de importância para espécies heliófilas e maior dinâmica, principalmente, na mortalidade de indivíduos. Já a FSEA apresentou espécies heliófilas e esciófilas como as mais importantes, bem como maior equilíbrio em relação às taxas de ingresso e mortalidade. A chuva de sementes mostrou-se eficiente mecanismo de regeneração natural, e a maioria das espécies observadas na vegetação arbórea da floresta apresentaram sazonalidade de produção. De forma geral, o remanescente de floresta representa uma importante área de preservação das espécies características da Floresta Estacional Subtropical e a sua manutenção se torna importante para manter a qualidade do solo na área, além de desempenhar importantes serviços ambientais à região.Universidade Federal de Santa MariaBRRecursos Florestais e Engenharia FlorestalUFSMPrograma de Pós-Graduação em Engenharia FlorestalAraujo, Maristela MachadoARAUJO, M. M.Carvalho, João Olegário Pereira dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4780755U8Floriano, Eduardo Pagelhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4737067Y4Rovedder, Ana Paula Moreirahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4763315T5Krügel, Marilise Mendonçahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4790149Y6Sccot, Marta Silvana Volpato2012-09-132012-09-132012-01-12info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfapplication/pdfSCCOT, Marta Silvana Volpato. VEGETATION DYNAMICS IN REMNANT OF SUBTROPICAL SEASONAL FOREST. 2012. 177 f. Tese (Doutorado em Recursos Florestais e Engenharia Florestal) - Universidade Federal de Santa Maria, Santa Maria, 2012.http://repositorio.ufsm.br/handle/1/3742porinfo:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2017-09-05T21:27:47Zoai:repositorio.ufsm.br:1/3742Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2017-09-05T21:27:47Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Dinâmica da vegetação em remanescente de floresta estacional subtropical Vegetation dynamics in remnant of subtropical seasonal forest |
title |
Dinâmica da vegetação em remanescente de floresta estacional subtropical |
spellingShingle |
Dinâmica da vegetação em remanescente de floresta estacional subtropical Sccot, Marta Silvana Volpato Fitossociologia Sucessão Análise multivariada Mortalidade Ingresso Incremento Chuva de sementes Phytosociology Succession Multivaried Analysis Mortality Ingress Increment Seed rain CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
title_short |
Dinâmica da vegetação em remanescente de floresta estacional subtropical |
title_full |
Dinâmica da vegetação em remanescente de floresta estacional subtropical |
title_fullStr |
Dinâmica da vegetação em remanescente de floresta estacional subtropical |
title_full_unstemmed |
Dinâmica da vegetação em remanescente de floresta estacional subtropical |
title_sort |
Dinâmica da vegetação em remanescente de floresta estacional subtropical |
author |
Sccot, Marta Silvana Volpato |
author_facet |
Sccot, Marta Silvana Volpato |
author_role |
author |
dc.contributor.none.fl_str_mv |
Araujo, Maristela Machado ARAUJO, M. M. Carvalho, João Olegário Pereira de http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4780755U8 Floriano, Eduardo Pagel http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4737067Y4 Rovedder, Ana Paula Moreira http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4763315T5 Krügel, Marilise Mendonça http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4790149Y6 |
dc.contributor.author.fl_str_mv |
Sccot, Marta Silvana Volpato |
dc.subject.por.fl_str_mv |
Fitossociologia Sucessão Análise multivariada Mortalidade Ingresso Incremento Chuva de sementes Phytosociology Succession Multivaried Analysis Mortality Ingress Increment Seed rain CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
topic |
Fitossociologia Sucessão Análise multivariada Mortalidade Ingresso Incremento Chuva de sementes Phytosociology Succession Multivaried Analysis Mortality Ingress Increment Seed rain CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
description |
The aim of this work was to study vegetation groupings and their dynamics in remnant of Subtropical Seasonal Forest, of nearly 560 ha, located at the Instruction Field of Santa Maria, in Santa Maria municipality, RS. In the study area, 14 blocks of 20x100m were marked, distributed into four bands, distant 500m from each other. Each block was divided into portions of 10mx10m, resulting in 280 portions, in which was evaluated the adult vegetation, represented by individuals with CBH≥30cm. Inside these blocks, 70 portions were raffled for evaluation of understory vegetation (3,14cm≤CBH<30cm), seedling bank (h≥30cm and CBH<3,14cm) and seed rain. In the 70 raffled portions, it was also evaluated the alternation degree, land slope and the light intensity. The occurred changes in the forest shrubby-arboreal component were studied based on the structure, ingress, mortality and increment (for the seedling bank) during the period from 2008 to 2010. In a similar way, the seed rain was monitored from October 2008 to October 2010, when the absolute density and the seasonality of seed production were evaluated. In this study, the results were presented in four chapters: the aim of the first one was to determine the grouping analysis and the occurred changes in the floristic composition and vegetation structure represented by CBH≥30 cm, being verified that the area presents two characterized formations, mainly, by the forest conservation degree, named: - Secondary Forest in Intermediate Stage (SFIS) of succession, represented by bigger exploration in the past due to the easy access to the area; and Secondary Forest in Advanced Stage (SFAS) of succession, occurring in a forest area characterized by a more accentuated slope, what made timber exploitation difficult, being therefore, in a more advanced stage of succession. The second chapter dealt with the occurred changes in the understory vegetation (3,14cm≤CBH<30cm) for the two floristic groups observed in the grouping analysis. In the third chapter, it was presented the natural regeneration dynamics, represented by the seedling bank (h≥30cm e CBH<3,14cm) and the seed rain. Finally, in the fourth chapter, it was carried out a general analysis of the most abundant species dynamics in each class of vegetation, in the two observed groups in the forest. The results indicated some differences in the floristic composition and vegetation dynamics, in each group. In one hand, the SFIS presented the highest value of importance to the heliophilous species and the highest dynamics, mainly, in the individual s mortality. On the other hand, the SFAS presented heliophilous and sciaphilous species as the most important as well as the highest equilibrium in relation to ingress and mortality rates. The seed rain seemed an efficient mechanism of natural regeneration and most of the observed species in the forest s arboreal vegetation presented production seasonality. In general, the remnant of forest represents an important preservation area for the characteristic species from Subtropical Seasonal Forest and its maintenance becomes important to keep the quality of soil in the area besides of playing important environmental services to the region. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-09-13 2012-09-13 2012-01-12 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
SCCOT, Marta Silvana Volpato. VEGETATION DYNAMICS IN REMNANT OF SUBTROPICAL SEASONAL FOREST. 2012. 177 f. Tese (Doutorado em Recursos Florestais e Engenharia Florestal) - Universidade Federal de Santa Maria, Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/3742 |
identifier_str_mv |
SCCOT, Marta Silvana Volpato. VEGETATION DYNAMICS IN REMNANT OF SUBTROPICAL SEASONAL FOREST. 2012. 177 f. Tese (Doutorado em Recursos Florestais e Engenharia Florestal) - Universidade Federal de Santa Maria, Santa Maria, 2012. |
url |
http://repositorio.ufsm.br/handle/1/3742 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria BR Recursos Florestais e Engenharia Florestal UFSM Programa de Pós-Graduação em Engenharia Florestal |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria BR Recursos Florestais e Engenharia Florestal UFSM Programa de Pós-Graduação em Engenharia Florestal |
dc.source.none.fl_str_mv |
reponame:Manancial - Repositório Digital da UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Manancial - Repositório Digital da UFSM |
collection |
Manancial - Repositório Digital da UFSM |
repository.name.fl_str_mv |
Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
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1805922107912093696 |