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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
01/10/2000 |
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Data da última atualização: |
13/12/2006 |
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Autoria: |
OLIVEIRA, M. V. N. d'. |
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Título: |
Substainable forest management for small farmers in Acre state in the Brazilian Amazon. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Aberdeen: University of Aberdeen, 2000. |
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Páginas: |
167p. |
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Idioma: |
Inglês |
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Notas: |
Tese Doutorado. |
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Conteúdo: |
This thesis has the aim of presenting a forest management system to be applied on small farms, especially in the settlement projects of the Brazilian Amazon, and to examine its sustainability by investigating the responses of the forest in terms of the changes in natural regeneration in felling gaps and the dynamics of the residual trees. Using the program CAFOGROM, an additional aim was to simulate the forest responses to different cycle lengths, harvesting intensities and silvicultural treatments to determine the theoretical optimum combination of these parameters. The proposed forest management system was designed to generate a new source of family income and to maintain the structure and biodiversity of the legal forest reserves. The system is new in three main characteristics: the use of short cycles in the management of tropical forest, the low harvesting intensity and environmental impact and the direct involvement of the local population in all forest management activities. It is based on a minimum felling cycle of ten years and an annual harvest of... The gaps produced by logging in PC Peixoto can be classified as small or less often medium sized (canopy openness from 10% to 25%). Differences in gap size and canopy openness produced significant differences in the growth rates, species richness and species diversity of seedlings established in the gaps. Mortality rates of seedlings in the artificial gaps increased and recruitment rates decreased with increasing gap size. The density and recruitment of seedlings of commercial species was not different between gap sizes, but gap creation increased the growth rate of the seedlings of these species. Small and medium gaps (less than 25% canopy openness) improved regeneration from the forest management point of view, with fewer pioneer plants, higher diversity and lower mortality, although they resulted in lower seedling growth rates... MenosThis thesis has the aim of presenting a forest management system to be applied on small farms, especially in the settlement projects of the Brazilian Amazon, and to examine its sustainability by investigating the responses of the forest in terms of the changes in natural regeneration in felling gaps and the dynamics of the residual trees. Using the program CAFOGROM, an additional aim was to simulate the forest responses to different cycle lengths, harvesting intensities and silvicultural treatments to determine the theoretical optimum combination of these parameters. The proposed forest management system was designed to generate a new source of family income and to maintain the structure and biodiversity of the legal forest reserves. The system is new in three main characteristics: the use of short cycles in the management of tropical forest, the low harvesting intensity and environmental impact and the direct involvement of the local population in all forest management activities. It is based on a minimum felling cycle of ten years and an annual harvest of... The gaps produced by logging in PC Peixoto can be classified as small or less often medium sized (canopy openness from 10% to 25%). Differences in gap size and canopy openness produced significant differences in the growth rates, species richness and species diversity of seedlings established in the gaps. Mortality rates of seedlings in the artificial gaps increased and recruitment rates decreased with increasing gap ... Mostrar Tudo |
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Palavras-Chave: |
Acre; Assentamento Rural; Manejo Florestal; Rural settlement; Sustainability; Sustentabilidade. |
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Thesagro: |
Agricultor; Floresta; Regeneração Natural. |
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Thesaurus Nal: |
farmers; forest management; forests; natural regeneration. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02708nam a2200289 a 4500
001 1305459
005 2006-12-13
008 2000 bl uuuu m 00u1 u #d
100 1 $aOLIVEIRA, M. V. N. d'.
245 $aSubstainable forest management for small farmers in Acre state in the Brazilian Amazon.
260 $aAberdeen: University of Aberdeen$c2000
300 $a167p.
500 $aTese Doutorado.
520 $aThis thesis has the aim of presenting a forest management system to be applied on small farms, especially in the settlement projects of the Brazilian Amazon, and to examine its sustainability by investigating the responses of the forest in terms of the changes in natural regeneration in felling gaps and the dynamics of the residual trees. Using the program CAFOGROM, an additional aim was to simulate the forest responses to different cycle lengths, harvesting intensities and silvicultural treatments to determine the theoretical optimum combination of these parameters. The proposed forest management system was designed to generate a new source of family income and to maintain the structure and biodiversity of the legal forest reserves. The system is new in three main characteristics: the use of short cycles in the management of tropical forest, the low harvesting intensity and environmental impact and the direct involvement of the local population in all forest management activities. It is based on a minimum felling cycle of ten years and an annual harvest of... The gaps produced by logging in PC Peixoto can be classified as small or less often medium sized (canopy openness from 10% to 25%). Differences in gap size and canopy openness produced significant differences in the growth rates, species richness and species diversity of seedlings established in the gaps. Mortality rates of seedlings in the artificial gaps increased and recruitment rates decreased with increasing gap size. The density and recruitment of seedlings of commercial species was not different between gap sizes, but gap creation increased the growth rate of the seedlings of these species. Small and medium gaps (less than 25% canopy openness) improved regeneration from the forest management point of view, with fewer pioneer plants, higher diversity and lower mortality, although they resulted in lower seedling growth rates...
650 $afarmers
650 $aforest management
650 $aforests
650 $anatural regeneration
650 $aAgricultor
650 $aFloresta
650 $aRegeneração Natural
653 $aAcre
653 $aAssentamento Rural
653 $aManejo Florestal
653 $aRural settlement
653 $aSustainability
653 $aSustentabilidade
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Registro original: |
Embrapa Florestas (CNPF) |
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Tipo/Formato |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
06/12/2011 |
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Data da última atualização: |
06/12/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
FERREIRA, E. H. da R.; MASSON, L. M. P; ROSENTHAL, A.; SOUZA, M. de L.; TASHIMA, L.; MASSAGUER, P. R. de. |
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Afiliação: |
ELISA HELENA DA ROCHA FERREIRA, IFRJ; LOURDES MARIA PESSOA MASSON, IFRJ; AMAURI ROSENTHAL, CTAA; MARIA DE LOURDES MENDES DE SOUZA, CTAA; LUANA TASHIMA, SENAI; PILAR RODRIGUEZ DE MASSAGUER, LABOTERMO. |
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Título: |
Termorresistência de fungos filamentosos isolados de néctares de frutas envasados assepticamente. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Brazilian Journal of Food Technology, Campinas, v. 14, n. 3, p. 164-171, jul./set. 2011. |
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DOI: |
10.4260/BJFT2011140300021 |
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Idioma: |
Português |
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Conteúdo: |
O presente estudo teve como objetivo caracterizar a termorresistência dos fungos mais termorresistentes, isolados de néctares de maracujá e abacaxi comerciais pasteurizados, bem como verificar a produção de patulina por esses fungos, quando inoculados em tais néctares. Os fungos mais termorresistentes isolados foram o Byssochlamys fulva em néctar de maracujá e o Byssochlamys nivea em néctar de abacaxi. O B. nivea, em néctar de abacaxi, mostrou-se mais termorresistente, com base nos valores de D98°C e Z, os quais resultaram em 27 min e 5,4 °C, respectivamente, em comparação com 13,6 min e 5,5 °C encontrados para B. fulva, em néctar de maracujá. A pasteurização comumente aplicada pela indústria não se mostrou suficiente para inativação dos fungos isolados. Não houve produção de patulina quando se inocularam os fungos diretamente nos néctares estudados. |
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Palavras-Chave: |
Néctar de abacaxi; Néctar de maracujá; Patulina; Termorresistência. |
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Thesaurus NAL: |
Byssochlamys fulva; Byssochlamys nivea. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/49370/1/2011-061.pdf
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Marc: |
LEADER 01715naa a2200265 a 4500
001 1908636
005 2011-12-06
008 2011 bl uuuu u00u1 u #d
024 7 $a10.4260/BJFT2011140300021$2DOI
100 1 $aFERREIRA, E. H. da R.
245 $aTermorresistência de fungos filamentosos isolados de néctares de frutas envasados assepticamente.
260 $c2011
520 $aO presente estudo teve como objetivo caracterizar a termorresistência dos fungos mais termorresistentes, isolados de néctares de maracujá e abacaxi comerciais pasteurizados, bem como verificar a produção de patulina por esses fungos, quando inoculados em tais néctares. Os fungos mais termorresistentes isolados foram o Byssochlamys fulva em néctar de maracujá e o Byssochlamys nivea em néctar de abacaxi. O B. nivea, em néctar de abacaxi, mostrou-se mais termorresistente, com base nos valores de D98°C e Z, os quais resultaram em 27 min e 5,4 °C, respectivamente, em comparação com 13,6 min e 5,5 °C encontrados para B. fulva, em néctar de maracujá. A pasteurização comumente aplicada pela indústria não se mostrou suficiente para inativação dos fungos isolados. Não houve produção de patulina quando se inocularam os fungos diretamente nos néctares estudados.
650 $aByssochlamys fulva
650 $aByssochlamys nivea
653 $aNéctar de abacaxi
653 $aNéctar de maracujá
653 $aPatulina
653 $aTermorresistência
700 1 $aMASSON, L. M. P
700 1 $aROSENTHAL, A.
700 1 $aSOUZA, M. de L.
700 1 $aTASHIMA, L.
700 1 $aMASSAGUER, P. R. de
773 $tBrazilian Journal of Food Technology, Campinas$gv. 14, n. 3, p. 164-171, jul./set. 2011.
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Embrapa Agroindústria de Alimentos (CTAA) |
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