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Registro Completo |
Biblioteca(s): |
Embrapa Agricultura Digital. |
Data corrente: |
06/03/2003 |
Data da última atualização: |
16/11/2015 |
Autoria: |
BRAGA, H. J.; SILVA JÚNIOR, V. P. da; PANDOLFO, C.; PEREIRA, E. S. |
Afiliação: |
EPAGRI. |
Título: |
Zoneamento de riscos climáticos da cultura da maçã no estado de Santa Catarina. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
Revista Brasileira de Agrometeorologia, Passo Fundo, v. 9, n. 3, p. 439-445, dez. 2001. Número especial. |
Idioma: |
Português |
Conteúdo: |
O objetivo desse trabalho foi realizar um zoneamento agrícola, considerando riscos climáticos para a cultura da maçã em Santa Catarina, baseado em suas principais exigências climáticas, determinando as regiões onde o cultivo corre menor risco de insucesso. |
Palavras-Chave: |
Fruteiras. |
Thesagro: |
Malus Domestica; Zoneamento Agrícola. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00868naa a2200193 a 4500 001 1006858 005 2015-11-16 008 2001 bl uuuu u00u1 u #d 100 1 $aBRAGA, H. J. 245 $aZoneamento de riscos climáticos da cultura da maçã no estado de Santa Catarina. 260 $c2001 520 $aO objetivo desse trabalho foi realizar um zoneamento agrícola, considerando riscos climáticos para a cultura da maçã em Santa Catarina, baseado em suas principais exigências climáticas, determinando as regiões onde o cultivo corre menor risco de insucesso. 650 $aMalus Domestica 650 $aZoneamento Agrícola 653 $aFruteiras 700 1 $aSILVA JÚNIOR, V. P. da 700 1 $aPANDOLFO, C. 700 1 $aPEREIRA, E. S. 773 $tRevista Brasileira de Agrometeorologia, Passo Fundo$gv. 9, n. 3, p. 439-445, dez. 2001. Número especial.
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Embrapa Agricultura Digital (CNPTIA) |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
01/10/2015 |
Data da última atualização: |
30/05/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
AVILA, A. L. de; RUSCHEL, A. R.; CARVALHO, J. O. P. de; MAZZEI, L.; SILVA, J. N. M.; LOPES, J. do C.; ARAUJO, M. M.; DORMANN, C. F.; BAUHUS, J. |
Afiliação: |
Angela Luciana de Avila, University of Freiburg; ADEMIR ROBERTO RUSCHEL, CPATU; João Olegário Pereira de Carvalho, UFRA; LUCAS JOSE MAZZEI DE FREITAS, CPATU; José Natalino Macedo Silva, UFRA; JOSE DO CARMO ALVES LOPES, CPATU; Maristela Machado Araujo, UFSM; Carsten F. Dormann, University of Freiburg; Jürgen Bauhus, University of Freiburg. |
Título: |
Medium-term dynamics of tree species composition in response to silvicultural intervention intensities in a tropical rain forest. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Biological Conservation, v. 191, p. 577-586, Nov. 2015. |
DOI: |
http://dx.doi.org/10.1016/j.biocon.2015.08.004 |
Idioma: |
Inglês |
Conteúdo: |
Managed forests are important landscape components in tropical regions and may contribute to biodiversity conservation. Yet, managing tropical forests sustainably requires an understanding of ecosystem responses to silvicultural interventions. We investigated how silvicultural intervention intensity affects tree species composition and diversity over 30 years in the Brazilian Amazon by comparing them to pre-logging conditions and to an unlogged control. The interventions comprised logging in 1982 and thinning in 1993?1994 and ranged in intensity from 19 to 53% reduction in the original basal area (BA). Trees with a diameter at breast height (DBH) ≥ 5 cm were measured on eight occasions in 41 permanent sample plots of 0.25 ha each. Silvicultural intervention intensity influenced both tree species composition and its trajectory within 30 years. In contrast, tree species diversity was not impaired. High intervention intensities (with BA reduction > 6.6 m2 ha− 1) had a substantial influence on the community of trees (DBH ≥ 10 cm), which did not show signs of return to pre-logging species composition. The reduction of BA through harvesting damage and thinning had a stronger effect on species composition than logging of mature trees itself. Thus, damage should be kept to a minimal level and strong thinning interventions should be avoided. This may enhance ecosystem recovery and maintenance of biodiversity at other trophic levels. Since current permitted harvesting intensities in the Brazilian Amazon are lower than the lowest intensity examined in our study, legal harvesting practices are unlikely to cause substantial, long-term changes in tree species composition. MenosManaged forests are important landscape components in tropical regions and may contribute to biodiversity conservation. Yet, managing tropical forests sustainably requires an understanding of ecosystem responses to silvicultural interventions. We investigated how silvicultural intervention intensity affects tree species composition and diversity over 30 years in the Brazilian Amazon by comparing them to pre-logging conditions and to an unlogged control. The interventions comprised logging in 1982 and thinning in 1993?1994 and ranged in intensity from 19 to 53% reduction in the original basal area (BA). Trees with a diameter at breast height (DBH) ≥ 5 cm were measured on eight occasions in 41 permanent sample plots of 0.25 ha each. Silvicultural intervention intensity influenced both tree species composition and its trajectory within 30 years. In contrast, tree species diversity was not impaired. High intervention intensities (with BA reduction > 6.6 m2 ha− 1) had a substantial influence on the community of trees (DBH ≥ 10 cm), which did not show signs of return to pre-logging species composition. The reduction of BA through harvesting damage and thinning had a stronger effect on species composition than logging of mature trees itself. Thus, damage should be kept to a minimal level and strong thinning interventions should be avoided. This may enhance ecosystem recovery and maintenance of biodiversity at other trophic levels. Since current permitted harvestin... Mostrar Tudo |
Palavras-Chave: |
Diversidade; Exploração; Recuperação florestal. |
Thesagro: |
Madeira. |
Thesaurus NAL: |
Amazonia. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
Marc: |
LEADER 02601naa a2200289 a 4500 001 2025610 005 2022-05-30 008 2015 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1016/j.biocon.2015.08.004$2DOI 100 1 $aAVILA, A. L. de 245 $aMedium-term dynamics of tree species composition in response to silvicultural intervention intensities in a tropical rain forest.$h[electronic resource] 260 $c2015 520 $aManaged forests are important landscape components in tropical regions and may contribute to biodiversity conservation. Yet, managing tropical forests sustainably requires an understanding of ecosystem responses to silvicultural interventions. We investigated how silvicultural intervention intensity affects tree species composition and diversity over 30 years in the Brazilian Amazon by comparing them to pre-logging conditions and to an unlogged control. The interventions comprised logging in 1982 and thinning in 1993?1994 and ranged in intensity from 19 to 53% reduction in the original basal area (BA). Trees with a diameter at breast height (DBH) ≥ 5 cm were measured on eight occasions in 41 permanent sample plots of 0.25 ha each. Silvicultural intervention intensity influenced both tree species composition and its trajectory within 30 years. In contrast, tree species diversity was not impaired. High intervention intensities (with BA reduction > 6.6 m2 ha− 1) had a substantial influence on the community of trees (DBH ≥ 10 cm), which did not show signs of return to pre-logging species composition. The reduction of BA through harvesting damage and thinning had a stronger effect on species composition than logging of mature trees itself. Thus, damage should be kept to a minimal level and strong thinning interventions should be avoided. This may enhance ecosystem recovery and maintenance of biodiversity at other trophic levels. Since current permitted harvesting intensities in the Brazilian Amazon are lower than the lowest intensity examined in our study, legal harvesting practices are unlikely to cause substantial, long-term changes in tree species composition. 650 $aAmazonia 650 $aMadeira 653 $aDiversidade 653 $aExploração 653 $aRecuperação florestal 700 1 $aRUSCHEL, A. R. 700 1 $aCARVALHO, J. O. P. de 700 1 $aMAZZEI, L. 700 1 $aSILVA, J. N. M. 700 1 $aLOPES, J. do C. 700 1 $aARAUJO, M. M. 700 1 $aDORMANN, C. F. 700 1 $aBAUHUS, J. 773 $tBiological Conservation$gv. 191, p. 577-586, Nov. 2015.
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