Resumo

Dinâmica da regeneração natural de florestas secundárias (capoeiras) do Nordeste Paraense

The vegetation cover in northeastern Pará is formed, in its great majority, by secondary vegetation in different stages of development, which can offer a high potential for products, if properly managed. However, there are still few studies on the subject. Research on the dynamics of natural regener...

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Autor principal: Rayol, Breno Pinto
Outros Autores: Silva, Manoela Ferreira Fernandes da
Grau: Resumo
Idioma: por
Publicado em: Museu Paraense Emílio Goeldi 2023
Assuntos:
Floresta secundaria
Regeneração natural
CNPQ::CIENCIAS BIOLOGICAS::BOTANICA
Acesso em linha: https://repositorio.museu-goeldi.br/handle/mgoeldi/2106
id ir-mgoeldi-2106
recordtype dspace
spelling ir-mgoeldi-21062023-04-21T06:00:56Z Dinâmica da regeneração natural de florestas secundárias (capoeiras) do Nordeste Paraense Dynamics of natural regeneration of secondary forests (capoeiras) in Northeastern Pará Rayol, Breno Pinto Silva, Manoela Ferreira Fernandes da Floresta secundaria Regeneração natural CNPQ::CIENCIAS BIOLOGICAS::BOTANICA The vegetation cover in northeastern Pará is formed, in its great majority, by secondary vegetation in different stages of development, which can offer a high potential for products, if properly managed. However, there are still few studies on the subject. Research on the dynamics of natural regeneration is essential for the preparation and correct application of management plans and silvicultural treatments. With the objective of contributing to the knowledge of the dynamics of natural regeneration in secondary forests, this work was developed in the municipality of Capitão Poço, in northeastern Pará, in two successional forests that are approximately 13 and 18 years old. Subplots of 5m x 5m were allocated for sampling sticks (No > DBH? 2.5 in) and sticks (DBH < 2.5 cm and height?1.5 m) and sub-plots of 1m x 5m for sampling seedlings (30 in? height?1.5 m). The behavior of the species dynamics was evaluated by the Natural Regeneration Rate (TR%). The results show that the youngest vegetation presented a total regeneration rate of 79.7%. The class called sticky showed a TR% of 90.6%, the variegated ones of -18.2%, and the small ones of 7.3%. Species such as Vismiaguianensis, iacistema aggregatum and Talisia guianensis remained stable and with individuals in all size classes. The oldest secondary forest showed during observations a positive rate of 20%, and the classes of poles, sticks and saplings obtained the following regeneration rates 25.9%, 12.5% and -18.4%, respectively. Licania beteromorpba, Hymatanthus sucuuba and Psychotria racemosa were some of the species that remained stable. Floristic diversity increased in the forests studied as succession progressed. A cobertura vegetal do nordeste paraense é formada, em sua grande maioria, por . vegetações secundárias em diferentes estágios de desenvolvimento, que podem oferecer elevado potencial de produtos, se manejadas adequadamente. Porém, ainda são poucos os estudos sobre o assunto. Pesquisas sobre a dinâmica da regeneração natural são essenciais para a elaboração e aplicação correta de planos de manejo e tratamentos silviculturais. Com o objetivo de contribuir para o conhecimento da dinâmica da regeneração natural de florestas secundárias, este trabalho foi desenvolvido no município de Capitão Poço, no nordeste do Pará, em duas florestas sucessionais de aproximadamente 13 e 18 anos. Foram alocadas sub-parcelas de 5mx5m para a amostragem das varas (Sem > DAP? 2,5 em) e varetas (DAP < 2,5 cm e altura?1,5 m) e sub-parcelas de 1m x 5m para a amostragem das mudas (30 em? altura?1,5 m). O comportamento da dinâmica das espécies foi avaliado pela Taxa de Regeneração Natural (TR%). Os resultados mostram que a capoeira mais nova apresentou taxa de regeneração total de 79,7%. A classe denominada de vara apresentou TR% de 90,6%, asvaretasde -18,2%, easmudas de 7,3%. Espécies como Vismiaguianensis, iacistema aggregatum e Talisia guianensis permaneceram estáveis e com indivíduos em todas as classes de tamanho. A floresta secundária mais antiga apresentou durante as observações taxa positiva de 20%, sendo que as classes de varas, varetas e mudas obtiveram as seguintes taxas de regeneração 25,9%, 12,5% e -18,4%, respectivamente. Licania beteromorpba, Hymatanthus sucuuba e Psychotria racemosa foram algumas das espécies que mantiveram-se estáveis. Nas florestas estudadas a diversidade Florística aumentou com o avanço da sucessão. 2023-04-20T18:00:24Z 2023-04-20 2023-04-20T18:00:24Z 2003-07-03 Resumo RAYOL, Breno Pinto; SILVA, Manoela Ferreira Fernandes da. Dinâmica da regeneração natural de florestas secundárias (capoeiras) do Nordeste Paraense. In: SEMINÁRIO DE INICIAÇÃO CIENTIFICA DO MUSEU GOELDI, 11., 2003, Belém. Livro de Resumos. Belém, MPEG, 2003. https://repositorio.museu-goeldi.br/handle/mgoeldi/2106 por Dinâmica da regeneração natural de florestas secundárias (capoeiras) do Nordeste Paraense Acesso Aberto application/pdf Museu Paraense Emílio Goeldi Brasil MPEG
institution Repositório Institucional - Museu Paraense Emílio Goeldi
collection RepositorioEmilioGoeldi
language por
topic Floresta secundaria
Regeneração natural
CNPQ::CIENCIAS BIOLOGICAS::BOTANICA
spellingShingle Floresta secundaria
Regeneração natural
CNPQ::CIENCIAS BIOLOGICAS::BOTANICA
Rayol, Breno Pinto
Dinâmica da regeneração natural de florestas secundárias (capoeiras) do Nordeste Paraense
topic_facet Floresta secundaria
Regeneração natural
CNPQ::CIENCIAS BIOLOGICAS::BOTANICA
description The vegetation cover in northeastern Pará is formed, in its great majority, by secondary vegetation in different stages of development, which can offer a high potential for products, if properly managed. However, there are still few studies on the subject. Research on the dynamics of natural regeneration is essential for the preparation and correct application of management plans and silvicultural treatments. With the objective of contributing to the knowledge of the dynamics of natural regeneration in secondary forests, this work was developed in the municipality of Capitão Poço, in northeastern Pará, in two successional forests that are approximately 13 and 18 years old. Subplots of 5m x 5m were allocated for sampling sticks (No > DBH? 2.5 in) and sticks (DBH < 2.5 cm and height?1.5 m) and sub-plots of 1m x 5m for sampling seedlings (30 in? height?1.5 m). The behavior of the species dynamics was evaluated by the Natural Regeneration Rate (TR%). The results show that the youngest vegetation presented a total regeneration rate of 79.7%. The class called sticky showed a TR% of 90.6%, the variegated ones of -18.2%, and the small ones of 7.3%. Species such as Vismiaguianensis, iacistema aggregatum and Talisia guianensis remained stable and with individuals in all size classes. The oldest secondary forest showed during observations a positive rate of 20%, and the classes of poles, sticks and saplings obtained the following regeneration rates 25.9%, 12.5% and -18.4%, respectively. Licania beteromorpba, Hymatanthus sucuuba and Psychotria racemosa were some of the species that remained stable. Floristic diversity increased in the forests studied as succession progressed.
format Resumo
author Rayol, Breno Pinto
author2 Silva, Manoela Ferreira Fernandes da
author2Str Silva, Manoela Ferreira Fernandes da
title Dinâmica da regeneração natural de florestas secundárias (capoeiras) do Nordeste Paraense
title_short Dinâmica da regeneração natural de florestas secundárias (capoeiras) do Nordeste Paraense
title_full Dinâmica da regeneração natural de florestas secundárias (capoeiras) do Nordeste Paraense
title_fullStr Dinâmica da regeneração natural de florestas secundárias (capoeiras) do Nordeste Paraense
title_full_unstemmed Dinâmica da regeneração natural de florestas secundárias (capoeiras) do Nordeste Paraense
title_sort dinâmica da regeneração natural de florestas secundárias (capoeiras) do nordeste paraense
publisher Museu Paraense Emílio Goeldi
publishDate 2023
url https://repositorio.museu-goeldi.br/handle/mgoeldi/2106
_version_ 1787135966600757248
score 11.755432

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