Density and composition of the soil seed bank in a successional forest ecosystem in the Eastern Amazon, Brazil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/15318 |
Resumo: | In the Amazon, itinerant agriculture guarantees the subsistence of traditional communities, but causes intense environmental impacts. Forest restoration with the monitoring of indicators such as the seed bank is essential, as it provides information on species viable for germination in ecosystem disturbance scenarios. We aim, therefore, to evaluate the composition and density of the seed bank of a successional forest in the Amazon, subjected to the manipulation of water and nutrients for 12 years. The collections were carried out at random, with the aid of a hollow sampler, in a forest fragment with three treatments (control - CTL, litter removal - REM and periodic irrigation - IRR). We found 684 individuals and 32 species. The density of individuals ranged from 820 ± 112 to 972 ± 394 ind m-2 for REM and CTL, while that of species ranged from 188 ± 48 to 216 ± 9.24 spp m-2 for CTL and REM, respectively. The bushes had the largest number of emergent individuals, and the vines, the smallest. The highest Shannon-Weanver and Pielou indices were observed in the CTL. The species Vismia guianensis, Cecropia obtusa and Cyperus rotundus were the most frequent in all treatments and the pioneer species predominated. The emergence speed of the REM treatment was lower than the CTL, while the average emergence time was similar between treatments. The composition and density of the seed bank were not affected by the residual effect of litter handling. Despite this, results were slightly higher for CTL treatment. |
id |
UNIFEI_2351de7bb96bc2afe4b323951c160843 |
---|---|
oai_identifier_str |
oai:ojs.pkp.sfu.ca:article/15318 |
network_acronym_str |
UNIFEI |
network_name_str |
Research, Society and Development |
repository_id_str |
|
spelling |
Density and composition of the soil seed bank in a successional forest ecosystem in the Eastern Amazon, BrazilDensidad y composición del banco de semillas del suelo en un ecosistema forestal sucesional en la Amazonía oriental, BrasilDensidade e composição do banco de sementes do solo em ecossistema sucessional de floresta na Amazônia Oriental, BrasilSistema de corte e queimaCultivo itineranteFlorestas SecundáriasTrajetória de restauração.Sistema de corte y quemadoAgricultura migratóriaBosques secundariosTrayectoria de restauración.Cutting and burning systemShifting cultivationSecondary forestsRestoration trajectory.In the Amazon, itinerant agriculture guarantees the subsistence of traditional communities, but causes intense environmental impacts. Forest restoration with the monitoring of indicators such as the seed bank is essential, as it provides information on species viable for germination in ecosystem disturbance scenarios. We aim, therefore, to evaluate the composition and density of the seed bank of a successional forest in the Amazon, subjected to the manipulation of water and nutrients for 12 years. The collections were carried out at random, with the aid of a hollow sampler, in a forest fragment with three treatments (control - CTL, litter removal - REM and periodic irrigation - IRR). We found 684 individuals and 32 species. The density of individuals ranged from 820 ± 112 to 972 ± 394 ind m-2 for REM and CTL, while that of species ranged from 188 ± 48 to 216 ± 9.24 spp m-2 for CTL and REM, respectively. The bushes had the largest number of emergent individuals, and the vines, the smallest. The highest Shannon-Weanver and Pielou indices were observed in the CTL. The species Vismia guianensis, Cecropia obtusa and Cyperus rotundus were the most frequent in all treatments and the pioneer species predominated. The emergence speed of the REM treatment was lower than the CTL, while the average emergence time was similar between treatments. The composition and density of the seed bank were not affected by the residual effect of litter handling. Despite this, results were slightly higher for CTL treatment.En la Amazonía, la agricultura itinerante garantiza la subsistencia de las comunidades tradicionales, pero provoca intensos impactos ambientales. La restauración forestal con el seguimiento de indicadores como el banco de semillas es fundamental, ya que brinda información sobre especies viables para germinar en escenarios de perturbación del ecosistema. Por lo tanto, nuestro objetivo es evaluar la composición y densidad del banco de semillas de un bosque sucesional en la Amazonía, sometido a la manipulación de agua y nutrientes durante 12 años. Las recolecciones se realizaron al azar, con la ayuda de un muestreador hueco, en un fragmento de bosque con tres tratamientos (control - CTL, remoción de hojarasca - REM y riego periódico - IRR). Encontramos 684 individuos y 32 especies. La densidad de individuos varió de 820 ± 112 a 972 ± 394 ind m-2 para REM y CTL, mientras que la de especies varió de 188 ± 48 a 216 ± 9.24 spp m-2 para CTL y REM, respectivamente. Los arbustos tenían el mayor número de individuos emergentes y las enredaderas, el menor. Las tasas más altas de Shannon-Weanver y Pielou se observaron en el CTL. Las especies Vismia guianensis, Cecropia obtusa y Cyperus rotundus fueron las más frecuentes en todos los tratamientos y predominaron las especies pioneras. La velocidad de emergencia del tratamiento REM fue menor que la de CTL, mientras que el tiempo promedio de emergencia fue similar entre tratamientos. La composición y densidad del banco de semillas no se vieron afectadas por el efecto residual del manejo de la cama. A pesar de esto, los resultados fueron ligeramente superiores para el tratamiento con CTL.Na Amazônia, a agricultura itinerante garante a subsistência das comunidades tradicionais, porém, ocasiona intensos impactos ambientais. A restauração florestal com o monitoramento de indicadores, como o banco de sementes é indispensável, pois, fornece informações sobre as espécies viáveis para germinação em cenários de distúrbios ecossistêmicos. Objetivou-se, portanto, avaliar a composição e a densidade do banco de semente de uma floresta sucessional na Amazônia, submetida à manipulação de água e nutrientes há 12 anos. As coletas foram realizadas de maneira aleatória, com o auxílio de um amostrador vazado, em um fragmento florestal com três tratamentos (controle - CTL, remoção de serapilheira - REM e irrigação periódica- IRR). Encontramos 684 indivíduos e 32 espécies. A densidade de indivíduos variou de 820 ± 112 a 972 ± 394 ind m-2 para REM e CTL, enquanto a de espécies variou de 188 ± 48 a 216 ± 9,24 spp m-2 para CTL e REM, respectivamente. Os arbustos apresentaram a maior quantidade de indivíduos emergentes, e os cipós, a menor. Os maiores índices de Shannon-Weanver e Pielou foram observados no CTL. As espécies Vismia guianensis, Cecropia obtusa e Cyperus rotundus foram as mais frequentes em todos os tratamentos e as espécies pioneiras predominaram. A velocidade de emergência do tratamento REM foi inferior ao CTL, enquanto o tempo médio de emergência foi semelhante entre os tratamentos. A composição e densidade do banco de sementes não foram afetadas pelo efeito residual da manipulação de serapilheira. Apesar disso, os resultados foram ligeiramente superiores para o tratamento CTL.Research, Society and Development2021-05-19info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1531810.33448/rsd-v10i6.15318Research, Society and Development; Vol. 10 No. 6; e23610615318Research, Society and Development; Vol. 10 Núm. 6; e23610615318Research, Society and Development; v. 10 n. 6; e236106153182525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/15318/13792Copyright (c) 2021 Elizane Alves Arraes Araújo; Julia Isabella de Matos Rodrigues; Walmer Bruno Rocha Martins; Helio Brito dos Santos Junior; Lívia Gabrig Turbay Rangel-Vasconcelos; Francisco de Assis Oliveirahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessAraújo, Elizane Alves Arraes Rodrigues, Julia Isabella de MatosMartins, Walmer Bruno RochaSantos Junior, Helio Brito dosRangel-Vasconcelos, Lívia Gabrig TurbayOliveira, Francisco de Assis2021-06-10T22:51:46Zoai:ojs.pkp.sfu.ca:article/15318Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:36:10.496436Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Density and composition of the soil seed bank in a successional forest ecosystem in the Eastern Amazon, Brazil Densidad y composición del banco de semillas del suelo en un ecosistema forestal sucesional en la Amazonía oriental, Brasil Densidade e composição do banco de sementes do solo em ecossistema sucessional de floresta na Amazônia Oriental, Brasil |
title |
Density and composition of the soil seed bank in a successional forest ecosystem in the Eastern Amazon, Brazil |
spellingShingle |
Density and composition of the soil seed bank in a successional forest ecosystem in the Eastern Amazon, Brazil Araújo, Elizane Alves Arraes Sistema de corte e queima Cultivo itinerante Florestas Secundárias Trajetória de restauração. Sistema de corte y quemado Agricultura migratória Bosques secundarios Trayectoria de restauración. Cutting and burning system Shifting cultivation Secondary forests Restoration trajectory. |
title_short |
Density and composition of the soil seed bank in a successional forest ecosystem in the Eastern Amazon, Brazil |
title_full |
Density and composition of the soil seed bank in a successional forest ecosystem in the Eastern Amazon, Brazil |
title_fullStr |
Density and composition of the soil seed bank in a successional forest ecosystem in the Eastern Amazon, Brazil |
title_full_unstemmed |
Density and composition of the soil seed bank in a successional forest ecosystem in the Eastern Amazon, Brazil |
title_sort |
Density and composition of the soil seed bank in a successional forest ecosystem in the Eastern Amazon, Brazil |
author |
Araújo, Elizane Alves Arraes |
author_facet |
Araújo, Elizane Alves Arraes Rodrigues, Julia Isabella de Matos Martins, Walmer Bruno Rocha Santos Junior, Helio Brito dos Rangel-Vasconcelos, Lívia Gabrig Turbay Oliveira, Francisco de Assis |
author_role |
author |
author2 |
Rodrigues, Julia Isabella de Matos Martins, Walmer Bruno Rocha Santos Junior, Helio Brito dos Rangel-Vasconcelos, Lívia Gabrig Turbay Oliveira, Francisco de Assis |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Araújo, Elizane Alves Arraes Rodrigues, Julia Isabella de Matos Martins, Walmer Bruno Rocha Santos Junior, Helio Brito dos Rangel-Vasconcelos, Lívia Gabrig Turbay Oliveira, Francisco de Assis |
dc.subject.por.fl_str_mv |
Sistema de corte e queima Cultivo itinerante Florestas Secundárias Trajetória de restauração. Sistema de corte y quemado Agricultura migratória Bosques secundarios Trayectoria de restauración. Cutting and burning system Shifting cultivation Secondary forests Restoration trajectory. |
topic |
Sistema de corte e queima Cultivo itinerante Florestas Secundárias Trajetória de restauração. Sistema de corte y quemado Agricultura migratória Bosques secundarios Trayectoria de restauración. Cutting and burning system Shifting cultivation Secondary forests Restoration trajectory. |
description |
In the Amazon, itinerant agriculture guarantees the subsistence of traditional communities, but causes intense environmental impacts. Forest restoration with the monitoring of indicators such as the seed bank is essential, as it provides information on species viable for germination in ecosystem disturbance scenarios. We aim, therefore, to evaluate the composition and density of the seed bank of a successional forest in the Amazon, subjected to the manipulation of water and nutrients for 12 years. The collections were carried out at random, with the aid of a hollow sampler, in a forest fragment with three treatments (control - CTL, litter removal - REM and periodic irrigation - IRR). We found 684 individuals and 32 species. The density of individuals ranged from 820 ± 112 to 972 ± 394 ind m-2 for REM and CTL, while that of species ranged from 188 ± 48 to 216 ± 9.24 spp m-2 for CTL and REM, respectively. The bushes had the largest number of emergent individuals, and the vines, the smallest. The highest Shannon-Weanver and Pielou indices were observed in the CTL. The species Vismia guianensis, Cecropia obtusa and Cyperus rotundus were the most frequent in all treatments and the pioneer species predominated. The emergence speed of the REM treatment was lower than the CTL, while the average emergence time was similar between treatments. The composition and density of the seed bank were not affected by the residual effect of litter handling. Despite this, results were slightly higher for CTL treatment. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-05-19 |
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://rsdjournal.org/index.php/rsd/article/view/15318 10.33448/rsd-v10i6.15318 |
url |
https://rsdjournal.org/index.php/rsd/article/view/15318 |
identifier_str_mv |
10.33448/rsd-v10i6.15318 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/15318/13792 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 10 No. 6; e23610615318 Research, Society and Development; Vol. 10 Núm. 6; e23610615318 Research, Society and Development; v. 10 n. 6; e23610615318 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
_version_ |
1797052677037752320 |