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Registro Completo |
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Biblioteca(s): |
Embrapa Amapá. |
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Data corrente: |
23/01/2020 |
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Data da última atualização: |
06/08/2020 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
PAIVA, P. M. V. de. |
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Afiliação: |
PAULO MARCELO VERAS DE PAIVA, CPAF-AP. |
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Título: |
Threatened by conservation: addressing policy gaps for the maintenance of high-density Brazil nut tree clumps. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Pesquisa Florestal Brasileira, v. 39, e201902043, p. 47-48, 2019. |
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Idioma: |
Inglês |
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Notas: |
Edição especial dos resumos do IUFRO World Congress, 25., 2019, Curitiba. |
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Conteúdo: |
Considered a cornerstone species in Amazonian forest conservation strategies, the Brazil nut enjoys a unique status. It is immune to cutting and most of its distribution is under some category of protected area. Nonetheless, both nut-gatherers and researchers consistently report insufficient natural regeneration levels and the population decline of high-density stands, including at strict nature reserves. The initial hypothesis of seed overharvesting lacks consensus as later studies identified the scarcity of canopy gaps at mature forests as the main cause for the recruitment failure of this gap-loving species. This observation supports the anthropogenic origin hypothesis and is consistent with the abundant recruitment observed in traditional swiddens, where the regeneration density increases with the number of cultivation cycles. This is due to a number of factors, including the scatterhoarder habit of the natural disperser, gap-clearance frequency, species? resistance to fire and remarkable re-sprouting capability. Nut-gatherers intuitively understand the role of swiddens for the maintenance and expansion of high-density Brazil nut stands, and many voluntarily protect their spontaneously enriched fallows from further cultivation cycles. Surprisingly, the very conservation policies end up hindering such traditional management practices. For example, when forbidding nutgatherers/swidden-farmers from clearing new plots of forest in exchange for those fallows they chose to protect. Expensive, labor-intensive and unpopular recommendations like enrichment planting are puny alternatives for what the ubiquitous swiddens can do, provided revised policies allow them to. Failing that, densities of senescent Brazil nut stands will continue to decrease until hardly justifying the ?sustainable alternative to deforestation? discourse. MenosConsidered a cornerstone species in Amazonian forest conservation strategies, the Brazil nut enjoys a unique status. It is immune to cutting and most of its distribution is under some category of protected area. Nonetheless, both nut-gatherers and researchers consistently report insufficient natural regeneration levels and the population decline of high-density stands, including at strict nature reserves. The initial hypothesis of seed overharvesting lacks consensus as later studies identified the scarcity of canopy gaps at mature forests as the main cause for the recruitment failure of this gap-loving species. This observation supports the anthropogenic origin hypothesis and is consistent with the abundant recruitment observed in traditional swiddens, where the regeneration density increases with the number of cultivation cycles. This is due to a number of factors, including the scatterhoarder habit of the natural disperser, gap-clearance frequency, species? resistance to fire and remarkable re-sprouting capability. Nut-gatherers intuitively understand the role of swiddens for the maintenance and expansion of high-density Brazil nut stands, and many voluntarily protect their spontaneously enriched fallows from further cultivation cycles. Surprisingly, the very conservation policies end up hindering such traditional management practices. For example, when forbidding nutgatherers/swidden-farmers from clearing new plots of forest in exchange for those fallows they chose to pro... Mostrar Tudo |
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Thesagro: |
Castanha; Regeneração Natural. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/209541/1/CPAF-AP-2019-Threatened-by-conservation-addressing-policy.pdf
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Marc: |
LEADER 02413nam a2200145 a 4500
001 2119290
005 2020-08-06
008 2019 bl uuuu u00u1 u #d
100 1 $aPAIVA, P. M. V. de
245 $aThreatened by conservation$baddressing policy gaps for the maintenance of high-density Brazil nut tree clumps.$h[electronic resource]
260 $aPesquisa Florestal Brasileira, v. 39, e201902043, p. 47-48$c2019
500 $aEdição especial dos resumos do IUFRO World Congress, 25., 2019, Curitiba.
520 $aConsidered a cornerstone species in Amazonian forest conservation strategies, the Brazil nut enjoys a unique status. It is immune to cutting and most of its distribution is under some category of protected area. Nonetheless, both nut-gatherers and researchers consistently report insufficient natural regeneration levels and the population decline of high-density stands, including at strict nature reserves. The initial hypothesis of seed overharvesting lacks consensus as later studies identified the scarcity of canopy gaps at mature forests as the main cause for the recruitment failure of this gap-loving species. This observation supports the anthropogenic origin hypothesis and is consistent with the abundant recruitment observed in traditional swiddens, where the regeneration density increases with the number of cultivation cycles. This is due to a number of factors, including the scatterhoarder habit of the natural disperser, gap-clearance frequency, species? resistance to fire and remarkable re-sprouting capability. Nut-gatherers intuitively understand the role of swiddens for the maintenance and expansion of high-density Brazil nut stands, and many voluntarily protect their spontaneously enriched fallows from further cultivation cycles. Surprisingly, the very conservation policies end up hindering such traditional management practices. For example, when forbidding nutgatherers/swidden-farmers from clearing new plots of forest in exchange for those fallows they chose to protect. Expensive, labor-intensive and unpopular recommendations like enrichment planting are puny alternatives for what the ubiquitous swiddens can do, provided revised policies allow them to. Failing that, densities of senescent Brazil nut stands will continue to decrease until hardly justifying the ?sustainable alternative to deforestation? discourse.
650 $aCastanha
650 $aRegeneração Natural
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Registro original: |
Embrapa Amapá (CPAF-AP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
29/08/1996 |
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Data da última atualização: |
21/02/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ALBUQUERQUE, M. M. de; SANTOS, E. M. dos. |
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Afiliação: |
MARCONDES MAURÍCIO DE ALBUQUERQUE, CPATSA; DENIS MEDEIROS DOS SANTOS, EPEAL. |
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Título: |
Interacoes dos fatores cultivar, adubacao e manejo de solo no aumento da produtividade do consorcio milho x feijao. |
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Ano de publicação: |
1983 |
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Fonte/Imprenta: |
In: REUNIÃO SOBRE CULTURAS CONSORCIADAS NO NORDESTE, 1., 1983, Teresina. Anais... Teresina: EMBRAPA-UEPAE de Teresina, 1983. |
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Páginas: |
v. 1, p. 28. |
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Idioma: |
Português |
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Conteúdo: |
Avaliaram-se os efeitos dos fatores cultivar, adubacao e manejo de solo isolados, e suas interacoes na produtividade de consorcio milho x feijao, tendo sido desenvolvido no Campo Experimental de Santana do Ipanema, em um Podzolico Vermelho-Amarelo, no ano agricola de 1981. Os tratamentos obedeceram um arranjo fatorial, em um delineamento de blocos ao acaso, com 3 repeticoes. Os fatores foram estudados em 2 niveis de tecnologia: a da pesquisa e a do produtor. Na avaliacao foram considerados os componentes de producao do feijao, peso de espiga despalhada do milho e rendimentos em kg/ha de ambas as culturas. |
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Palavras-Chave: |
Bean; Consorciação; Fertilization; Maiz. |
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Thesagro: |
Adubação; Feijão; Manejo; Milho; Produção; Solo. |
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Thesaurus NAL: |
intercropping; soil management. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/66406/1/Digitalizar0022.pdf
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Marc: |
LEADER 01434nam a2200277 a 4500
001 1131378
005 2024-02-21
008 1983 bl uuuu u00u1 u #d
100 1 $aALBUQUERQUE, M. M. de
245 $aInteracoes dos fatores cultivar, adubacao e manejo de solo no aumento da produtividade do consorcio milho x feijao.
260 $aIn: REUNIÃO SOBRE CULTURAS CONSORCIADAS NO NORDESTE, 1., 1983, Teresina. Anais... Teresina: EMBRAPA-UEPAE de Teresina$c1983
300 $av. 1, p. 28.
520 $aAvaliaram-se os efeitos dos fatores cultivar, adubacao e manejo de solo isolados, e suas interacoes na produtividade de consorcio milho x feijao, tendo sido desenvolvido no Campo Experimental de Santana do Ipanema, em um Podzolico Vermelho-Amarelo, no ano agricola de 1981. Os tratamentos obedeceram um arranjo fatorial, em um delineamento de blocos ao acaso, com 3 repeticoes. Os fatores foram estudados em 2 niveis de tecnologia: a da pesquisa e a do produtor. Na avaliacao foram considerados os componentes de producao do feijao, peso de espiga despalhada do milho e rendimentos em kg/ha de ambas as culturas.
650 $aintercropping
650 $asoil management
650 $aAdubação
650 $aFeijão
650 $aManejo
650 $aMilho
650 $aProdução
650 $aSolo
653 $aBean
653 $aConsorciação
653 $aFertilization
653 $aMaiz
700 1 $aSANTOS, E. M. dos
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Embrapa Semiárido (CPATSA) |
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