Seed banks in pastures of Central Amazonian Region
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , |
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/431 |
Resumo: | This study investigated the seed bank of pastures in disturbed areas in Amazonia Central. In four pastures, 20 samples of 15 x 15 cm at 0 to 5 cm depth and six samples in a depths of 5 to 10 and 10 to 30 cm. For counting and seed identification, the seedling emergence method in a green house was used. Significant differences in seed densities were observed among the four pastures, varying from 304 to 6153 seeds per m², at 0 to 5 cm depth, showing high variation among the areas. The number of species varied from 17 to 27 at the superficial layer. The seed banks contained mainly invasive herbs and pioneer species characteristic of disturbed areas. The succession plant which will develop require a longer time interval to present strata shrubs / trees with utmost importance and the forest will probably be much less heterogeneous than the original. |
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Seed banks in pastures of Central Amazonian RegionBancos de sementes do solo em pastagens na Amazônia CentralRelative importanceSimilarity indexWeedRichnessSoloEstoque de sementesRegeneração de pastagensAmazôniaThis study investigated the seed bank of pastures in disturbed areas in Amazonia Central. In four pastures, 20 samples of 15 x 15 cm at 0 to 5 cm depth and six samples in a depths of 5 to 10 and 10 to 30 cm. For counting and seed identification, the seedling emergence method in a green house was used. Significant differences in seed densities were observed among the four pastures, varying from 304 to 6153 seeds per m², at 0 to 5 cm depth, showing high variation among the areas. The number of species varied from 17 to 27 at the superficial layer. The seed banks contained mainly invasive herbs and pioneer species characteristic of disturbed areas. The succession plant which will develop require a longer time interval to present strata shrubs / trees with utmost importance and the forest will probably be much less heterogeneous than the original.Este estudo investigou os bancos de sementes em pastagens implantadas na região de Manaus (Amazonas, Amazônia Central). Em quatro pastagens, foram coletadas 20 amostras de solo de 15 x 15 cm na profundidade de 0 cm a 5 cm e 6 amostras nas profundidades de 5 cm a 10 cm e 10 a 30 cm. Para a contagem e identificação das sementes utilizou-se o método de emergência de plântulas em casa de vegetação. As plântulas foram identificadas por morfotipo e, quando possível, até o nível de espécie. O acompanhamento foi feito durante nove meses. Verificou-se a existência de diferença significativa entre as densidades de sementes das quatro pastagens, variando de 304 a 6153 sementes por metro quadrado, na profundidade de 0 a 5 cm, o que mostra uma alta variação entre as áreas. O número de espécies variou de 17 a 27 na camada superficial. Os bancos de sementes apresentaram-se constituídos predominantemente por herbáceas e espécies lenhosas pioneiras, características de ambientes perturbados. A sucessão vegetal que se desenvolverá necessitará de um intervalo de tempo maior para apresentar estratos arbustivos-arbóreos com maior importância e a floresta será, provavelmente, bem menos heterogênea que a original.Embrapa Florestas2013-06-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/43110.4336/2013.pfb.33.74.431Pesquisa Florestal Brasileira; v. 33 n. 74 (2013): abr./jun.; 115-125Pesquisa Florestal Brasileira; Vol. 33 No. 74 (2013): abr./jun.; 115-1251983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/431/pdf_40Costa, Joanne RégisMitja, DanielleLeal Filho, Niwtoninfo:eu-repo/semantics/openAccess2017-04-28T12:52:27Zoai:pfb.cnpf.embrapa.br/pfb:article/431Revistahttps://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:2017-04-28T12:52:27Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Seed banks in pastures of Central Amazonian Region Bancos de sementes do solo em pastagens na Amazônia Central |
title |
Seed banks in pastures of Central Amazonian Region |
spellingShingle |
Seed banks in pastures of Central Amazonian Region Costa, Joanne Régis Relative importance Similarity index Weed Richness Solo Estoque de sementes Regeneração de pastagens Amazônia |
title_short |
Seed banks in pastures of Central Amazonian Region |
title_full |
Seed banks in pastures of Central Amazonian Region |
title_fullStr |
Seed banks in pastures of Central Amazonian Region |
title_full_unstemmed |
Seed banks in pastures of Central Amazonian Region |
title_sort |
Seed banks in pastures of Central Amazonian Region |
author |
Costa, Joanne Régis |
author_facet |
Costa, Joanne Régis Mitja, Danielle Leal Filho, Niwton |
author_role |
author |
author2 |
Mitja, Danielle Leal Filho, Niwton |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Costa, Joanne Régis Mitja, Danielle Leal Filho, Niwton |
dc.subject.por.fl_str_mv |
Relative importance Similarity index Weed Richness Solo Estoque de sementes Regeneração de pastagens Amazônia |
topic |
Relative importance Similarity index Weed Richness Solo Estoque de sementes Regeneração de pastagens Amazônia |
description |
This study investigated the seed bank of pastures in disturbed areas in Amazonia Central. In four pastures, 20 samples of 15 x 15 cm at 0 to 5 cm depth and six samples in a depths of 5 to 10 and 10 to 30 cm. For counting and seed identification, the seedling emergence method in a green house was used. Significant differences in seed densities were observed among the four pastures, varying from 304 to 6153 seeds per m², at 0 to 5 cm depth, showing high variation among the areas. The number of species varied from 17 to 27 at the superficial layer. The seed banks contained mainly invasive herbs and pioneer species characteristic of disturbed areas. The succession plant which will develop require a longer time interval to present strata shrubs / trees with utmost importance and the forest will probably be much less heterogeneous than the original. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-06-26 |
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/431 10.4336/2013.pfb.33.74.431 |
url |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/431 |
identifier_str_mv |
10.4336/2013.pfb.33.74.431 |
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/431/pdf_40 |
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. 33 n. 74 (2013): abr./jun.; 115-125 Pesquisa Florestal Brasileira; Vol. 33 No. 74 (2013): abr./jun.; 115-125 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 |
_version_ |
1783370934128738304 |