Litter Production and Nutrients Return of a Taxi-Branco Stand and of a Secondary Forest in Amapá

Detalhes bibliográficos
Autor(a) principal: Mochiutti, Silas
Data de Publicação: 2011
Outros Autores: Queiroz, José Antonio Leite de, Melém Junior, Nagib Jorge
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/201
Resumo: This study aimed to evaluate the total and seasonal deposition of biomass, concentration and total amount of nutrient in litter of a taxi-branco stand and of a secondary forest, both 9 years old and established in area deforested by shifting cultivation. Thirty collectors 1.5 m2 were distributed (20 at taxi-branco and ten at secondary forest). Litter was collected monthly, oven-dried and analyzed for concentrations of N, P, K, Ca and Mg. The annual deposition of litter was 9646 kg/ha in taxi-branco stand and 4474 kg/ha in secondary forest. Litter production was greater in the lower precipitation period (August to November), comprising 74% and 56% of the annual production of the taxi-branco stand and secondary forest, respectively. Taxi-branco litter had higher concentration of N, while the secondary forest had higher concentration of Ca, Mg, K and P. The annual transfer of N was greater in taxi-branco stand (117.0 kg/ha) than in secondary forest (51.4 kg/ha); Ca was greater in the secondary forest (41.3 kg/ha) than in taxi-branco (26.4 kg/ha); and Mg, K and P were similar in two areas. Soils recovery in the migrant agriculture should be more effective in taxi-branco enriched secondary forests, by the species association with different characteristics from litter production, N fixation and nutrients cycling. 
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spelling Litter Production and Nutrients Return of a Taxi-Branco Stand and of a Secondary Forest in AmapáProdução de Serapilheira e Retorno de Nutrientes de um Povoamento de Taxibranco e de uma Floresta Secundária no AmapáLiteiracapoeirarecuperação de solosAmazônia.Litterfallfallowsoil rehabilitationSclerolobium paniculatumBrazilian Amazon.This study aimed to evaluate the total and seasonal deposition of biomass, concentration and total amount of nutrient in litter of a taxi-branco stand and of a secondary forest, both 9 years old and established in area deforested by shifting cultivation. Thirty collectors 1.5 m2 were distributed (20 at taxi-branco and ten at secondary forest). Litter was collected monthly, oven-dried and analyzed for concentrations of N, P, K, Ca and Mg. The annual deposition of litter was 9646 kg/ha in taxi-branco stand and 4474 kg/ha in secondary forest. Litter production was greater in the lower precipitation period (August to November), comprising 74% and 56% of the annual production of the taxi-branco stand and secondary forest, respectively. Taxi-branco litter had higher concentration of N, while the secondary forest had higher concentration of Ca, Mg, K and P. The annual transfer of N was greater in taxi-branco stand (117.0 kg/ha) than in secondary forest (51.4 kg/ha); Ca was greater in the secondary forest (41.3 kg/ha) than in taxi-branco (26.4 kg/ha); and Mg, K and P were similar in two areas. Soils recovery in the migrant agriculture should be more effective in taxi-branco enriched secondary forests, by the species association with different characteristics from litter production, N fixation and nutrients cycling. O objetivo deste estudo foi avaliar a deposição anual e sazonal de biomassa e a concentração e aporte de nutrientes na serapilheira de um povoamento de taxibranco (Sclerolobium aniculatum ogel) e de uma floresta secundária, amboscom nove anos de idade e estabelecidos em área degradada pela agricultura migratória. Foram distribuídos 30 coletores de 1,5 m2 (20 no plantio de taxibranco e dez na floresta secundária) e realizadas coletas mensais da serapilheira. O material recolhido foi seco em estufa e analisado quanto aos teores de N, P, K, Ca e Mg. A deposição anual de serapilheira foi de 9.646 kg/ha no taxi-branco e de 4.474 kg/ha na floresta secundária. A produção de serapilheira foi maior no período de menor precipitação (agosto a novembro), representando 74% e 56% de toda a serapilheira produzida durante o ano, respectivamente para o taxibranco e a floresta secundária. O teor médio de N foi maior na serapilheira do taxi-branco, enquanto que a concentração média de Ca, Mg, K e P foi maior na floresta secundária. O aporte anual de N foi maior no povoamento de taxi-branco (117,0 kg/ha) que na floresta secundária (51,4 kg/ha); Ca foi maior na floresta secundária (41,3 kg/ha) que no taxi-branco (26,4 kg/ha); e Mg, K e P foram similares nas duas áreas. A recuperação de solos utilizados pela agricultura migratória deverá ser mais eficaz em florestas secundárias enriquecidas com taxibranco, por associar espécies com características diferenciadas de deposição de serapilheira, fixação de N e ciclagem de nutrientes. Embrapa Florestas2011-03-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/201Pesquisa Florestal Brasileira; n. 52 (2006): jan./jun.; 3Pesquisa Florestal Brasileira; No. 52 (2006): jan./jun.; 31983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/201/162Mochiutti, SilasQueiroz, José Antonio Leite deMelém Junior, Nagib Jorgeinfo:eu-repo/semantics/openAccess2021-03-19T21:48:10Zoai:pfb.cnpf.embrapa.br/pfb:article/201Revistahttps://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:2021-03-19T21:48:10Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Litter Production and Nutrients Return of a Taxi-Branco Stand and of a Secondary Forest in Amapá
Produção de Serapilheira e Retorno de Nutrientes de um Povoamento de Taxibranco e de uma Floresta Secundária no Amapá
title Litter Production and Nutrients Return of a Taxi-Branco Stand and of a Secondary Forest in Amapá
spellingShingle Litter Production and Nutrients Return of a Taxi-Branco Stand and of a Secondary Forest in Amapá
Mochiutti, Silas
Liteira
capoeira
recuperação de solos
Amazônia.
Litterfall
fallow
soil rehabilitation
Sclerolobium paniculatum
Brazilian Amazon.
title_short Litter Production and Nutrients Return of a Taxi-Branco Stand and of a Secondary Forest in Amapá
title_full Litter Production and Nutrients Return of a Taxi-Branco Stand and of a Secondary Forest in Amapá
title_fullStr Litter Production and Nutrients Return of a Taxi-Branco Stand and of a Secondary Forest in Amapá
title_full_unstemmed Litter Production and Nutrients Return of a Taxi-Branco Stand and of a Secondary Forest in Amapá
title_sort Litter Production and Nutrients Return of a Taxi-Branco Stand and of a Secondary Forest in Amapá
author Mochiutti, Silas
author_facet Mochiutti, Silas
Queiroz, José Antonio Leite de
Melém Junior, Nagib Jorge
author_role author
author2 Queiroz, José Antonio Leite de
Melém Junior, Nagib Jorge
author2_role author
author
dc.contributor.author.fl_str_mv Mochiutti, Silas
Queiroz, José Antonio Leite de
Melém Junior, Nagib Jorge
dc.subject.por.fl_str_mv Liteira
capoeira
recuperação de solos
Amazônia.
Litterfall
fallow
soil rehabilitation
Sclerolobium paniculatum
Brazilian Amazon.
topic Liteira
capoeira
recuperação de solos
Amazônia.
Litterfall
fallow
soil rehabilitation
Sclerolobium paniculatum
Brazilian Amazon.
description This study aimed to evaluate the total and seasonal deposition of biomass, concentration and total amount of nutrient in litter of a taxi-branco stand and of a secondary forest, both 9 years old and established in area deforested by shifting cultivation. Thirty collectors 1.5 m2 were distributed (20 at taxi-branco and ten at secondary forest). Litter was collected monthly, oven-dried and analyzed for concentrations of N, P, K, Ca and Mg. The annual deposition of litter was 9646 kg/ha in taxi-branco stand and 4474 kg/ha in secondary forest. Litter production was greater in the lower precipitation period (August to November), comprising 74% and 56% of the annual production of the taxi-branco stand and secondary forest, respectively. Taxi-branco litter had higher concentration of N, while the secondary forest had higher concentration of Ca, Mg, K and P. The annual transfer of N was greater in taxi-branco stand (117.0 kg/ha) than in secondary forest (51.4 kg/ha); Ca was greater in the secondary forest (41.3 kg/ha) than in taxi-branco (26.4 kg/ha); and Mg, K and P were similar in two areas. Soils recovery in the migrant agriculture should be more effective in taxi-branco enriched secondary forests, by the species association with different characteristics from litter production, N fixation and nutrients cycling. 
publishDate 2011
dc.date.none.fl_str_mv 2011-03-08
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/201
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/201
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/201/162
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; n. 52 (2006): jan./jun.; 3
Pesquisa Florestal Brasileira; No. 52 (2006): jan./jun.; 3
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
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