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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
30/06/2010 |
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Data da última atualização: |
30/06/2010 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LIMA, J. E. F. W.; SANO, E. E.; SILVA, E. M. da; LOPES, T. S. de S. |
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Afiliação: |
JORGE ENOCH FURQUIM WERNECK LIMA, CPAC; EDSON EYJI SANO, CPAC; EUZÉBIO MEDRADO DA SILVA, CPAC; THAISE SUSSANE DE SOUZA LOPES, CPAC. |
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Título: |
Irrigação por pivô central no Cerrado. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Item, n. 83/84 - 3º e 4º trimestres 2009. |
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Idioma: |
Português |
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Notas: |
Meta 2010 |
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Conteúdo: |
Informações sobre a oferta e a demanda hídrica de um dado local ou região são fundamentais para a adequada gestão de seus recursos hídricos. Em se tratando da oferta hídrica, superficial ou subterrânea, sua determinação é efetuada, normalmente, com base em dados hidrométricos e em estudos hidrológicos e estatísticos, que permitem estimar a disponibilidade hídica associada a uma probabilidade de ocorrência em determinada localidade e época do ano. No caso da geração de informações sobre a demanda hídrica, é importante o constante monitoramento das captações, derivações, barragens e lançamentos de efluentes realizados pelos diferentes usuários de água por bacia hidrográfica. |
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Thesagro: |
Cerrado; Irrigação; Pivô Central. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01228naa a2200205 a 4500
001 1856369
005 2010-06-30
008 2009 bl --- 0-- u #d
100 1 $aLIMA, J. E. F. W.
245 $aIrrigação por pivô central no Cerrado.
260 $c2009
500 $aMeta 2010
520 $aInformações sobre a oferta e a demanda hídrica de um dado local ou região são fundamentais para a adequada gestão de seus recursos hídricos. Em se tratando da oferta hídrica, superficial ou subterrânea, sua determinação é efetuada, normalmente, com base em dados hidrométricos e em estudos hidrológicos e estatísticos, que permitem estimar a disponibilidade hídica associada a uma probabilidade de ocorrência em determinada localidade e época do ano. No caso da geração de informações sobre a demanda hídrica, é importante o constante monitoramento das captações, derivações, barragens e lançamentos de efluentes realizados pelos diferentes usuários de água por bacia hidrográfica.
650 $aCerrado
650 $aIrrigação
650 $aPivô Central
700 1 $aSANO, E. E.
700 1 $aSILVA, E. M. da
700 1 $aLOPES, T. S. de S.
773 $tItem$gn. 83/84 - 3º e 4º trimestres 2009.
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Embrapa Cerrados (CPAC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrossilvipastoril. Para informações adicionais entre em contato com cpamt.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
16/11/2012 |
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Data da última atualização: |
16/11/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SILVESTRINI, M.; CYSNEIRO, A. D.; LIMA, A. L.; VEIGA, L. G.; ISERNHAGEN, I.; TAMASHIRO, J. Y.; GANDOLFI, S.; RODRIGUES, R. R. |
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Afiliação: |
INGO ISERNHAGEN, CPAMT. |
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Título: |
Natural regeneration in abandoned fields following intensive agricultural land use in an Atlantic Forest Island, Brazil. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Revista Árvore (Online), v. 36, n. 4, p. 659-671, 2012. |
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Volume: |
36 |
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Páginas: |
659-671 |
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ISSN: |
1806-9088 |
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Idioma: |
Inglês |
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Conteúdo: |
The time required to regrowth a forest in degraded areas depends on how the forest is removed and on the type of land use following removal. Natural regeneration was studied in abandoned old fields after intensive agricultural land use in areas originally covered by Brazilian Atlantic Forests of the Anchieta Island, Brazil in order to understand how plant communities reassemble following human disturbances as well as to determine suitable strategies of forest restoration. The fields were classified into three vegetation types according to the dominant plant species in: 1) Miconia albicans (Sw.) Triana (Melastomataceae) fields, 2) Dicranopteris flexuosa (Schrader) Underw. (Gleicheniaceae) thickets, and 3) Gleichenella pectinata (Willd.) Ching. (Gleicheniaceae) thickets. Both composition and structure of natural regeneration were compared among the three dominant vegetation types by establishing randomly three plots of 1 x 3 m in five sites of the island. A gradient in composition and abundance of species in natural regeneration could be observed along vegetation types from Dicranopteris fern thickets to Miconia fields. The gradient did not accurately follow the pattern of spatial distribution of the three dominant vegetation types in the island regarding their proximity of the remnant forests. A complex association of biotic and abiotic factors seems to be affecting the seedling recruitment and establishment in the study plots. The lowest plant regeneration found in Dicranopteris and Gleichenella thickets suggests that the ferns inhibit the recruitment of woody and herbaceous species. Otherwise, we could not distinguish different patterns of tree regeneration among the three vegetation types. Our results showed that forest recovery following severe anthropogenic disturbances is not direct, predictable or even achievable on its own. Appropriated actions and methods such as fern removal, planting ground covers, and enrichment planting with tree species were suggested in order to restore the natural forest regeneration process in the abandoned old fields. MenosThe time required to regrowth a forest in degraded areas depends on how the forest is removed and on the type of land use following removal. Natural regeneration was studied in abandoned old fields after intensive agricultural land use in areas originally covered by Brazilian Atlantic Forests of the Anchieta Island, Brazil in order to understand how plant communities reassemble following human disturbances as well as to determine suitable strategies of forest restoration. The fields were classified into three vegetation types according to the dominant plant species in: 1) Miconia albicans (Sw.) Triana (Melastomataceae) fields, 2) Dicranopteris flexuosa (Schrader) Underw. (Gleicheniaceae) thickets, and 3) Gleichenella pectinata (Willd.) Ching. (Gleicheniaceae) thickets. Both composition and structure of natural regeneration were compared among the three dominant vegetation types by establishing randomly three plots of 1 x 3 m in five sites of the island. A gradient in composition and abundance of species in natural regeneration could be observed along vegetation types from Dicranopteris fern thickets to Miconia fields. The gradient did not accurately follow the pattern of spatial distribution of the three dominant vegetation types in the island regarding their proximity of the remnant forests. A complex association of biotic and abiotic factors seems to be affecting the seedling recruitment and establishment in the study plots. The lowest plant regeneration found in Dicranopt... Mostrar Tudo |
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Thesaurus NAL: |
Forest restoration. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02834naa a2200253 a 4500
001 1939802
005 2012-11-16
008 2012 bl uuuu u00u1 u #d
022 $a1806-9088
100 1 $aSILVESTRINI, M.
245 $aNatural regeneration in abandoned fields following intensive agricultural land use in an Atlantic Forest Island, Brazil.$h[electronic resource]
260 $c2012
300 $a659-671 36
490 $v36
520 $aThe time required to regrowth a forest in degraded areas depends on how the forest is removed and on the type of land use following removal. Natural regeneration was studied in abandoned old fields after intensive agricultural land use in areas originally covered by Brazilian Atlantic Forests of the Anchieta Island, Brazil in order to understand how plant communities reassemble following human disturbances as well as to determine suitable strategies of forest restoration. The fields were classified into three vegetation types according to the dominant plant species in: 1) Miconia albicans (Sw.) Triana (Melastomataceae) fields, 2) Dicranopteris flexuosa (Schrader) Underw. (Gleicheniaceae) thickets, and 3) Gleichenella pectinata (Willd.) Ching. (Gleicheniaceae) thickets. Both composition and structure of natural regeneration were compared among the three dominant vegetation types by establishing randomly three plots of 1 x 3 m in five sites of the island. A gradient in composition and abundance of species in natural regeneration could be observed along vegetation types from Dicranopteris fern thickets to Miconia fields. The gradient did not accurately follow the pattern of spatial distribution of the three dominant vegetation types in the island regarding their proximity of the remnant forests. A complex association of biotic and abiotic factors seems to be affecting the seedling recruitment and establishment in the study plots. The lowest plant regeneration found in Dicranopteris and Gleichenella thickets suggests that the ferns inhibit the recruitment of woody and herbaceous species. Otherwise, we could not distinguish different patterns of tree regeneration among the three vegetation types. Our results showed that forest recovery following severe anthropogenic disturbances is not direct, predictable or even achievable on its own. Appropriated actions and methods such as fern removal, planting ground covers, and enrichment planting with tree species were suggested in order to restore the natural forest regeneration process in the abandoned old fields.
650 $aForest restoration
700 1 $aCYSNEIRO, A. D.
700 1 $aLIMA, A. L.
700 1 $aVEIGA, L. G.
700 1 $aISERNHAGEN, I.
700 1 $aTAMASHIRO, J. Y.
700 1 $aGANDOLFI, S.
700 1 $aRODRIGUES, R. R.
773 $tRevista Árvore (Online)$gv. 36, n. 4, p. 659-671, 2012.
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