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 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
08/10/2020 |
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Data da última atualização: |
08/10/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BUENO, M. V.; CAMPOS, A. D. S. de; SILVA, J. T. da; MASSEY, J.; TIMM, L. C.; FARIA, L. C.; ROEL, A.; PARFITT, J. M. B. |
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Afiliação: |
MARCOS VALLE BUENO, UFPEL; ALEXSSANDRA DAYANE SOARES DE CAMPOS, UFPEL; JAQUELINE TROMBETTA DA SILVA, UFPEL; JOSEPH MASSEY, USDA AGRICULTURAL RESEARCH SERVICE; LUIS CARLOS TIMM, UFPEL; LESSANDRO COLL FARIA, UFPEL; ÁLVARO ROEL, NATIONAL INSTITUTE OF AGRICULTURAL RESEARCH OF URUGUAY; JOSE MARIA BARBAT PARFITT, CPACT. |
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Título: |
Improving the drainage and irrigation efficiencyof lowland soils: land-formingoptions for southern Brazil. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Irrigation and Drainage Engineering, v. 146, n. 8, 04020019, Aug. 2020. |
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Páginas: |
8 p. |
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Idioma: |
Inglês |
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Conteúdo: |
Land leveling is used to correct soil surface irregularities to improve surface drainage and irrigation. It also makes the area moremanageable for an array of agricultural activities such as planting and harvesting. The objective of this work was to evaluate two designs ofland forming, one aimed at optimizing drainage and the other at optimizing surface irrigation, using fields with reliefs typical of the lowlandsof southern Brazil. Seven commercial rice fields, ranging in size from 7 to 26 ha, were randomly selected and digital elevation designsgenerated for each. Land-leveling projects were developed using three designs: uniform slope (US) (control), land forming?drainage(LFD), and land forming?irrigation (LFI). Performance comparisons between the designs were evaluated through impacts on soil movement(SM), maximum cut in 99% of the area (MC), cumulative length of levees (LL), and total number of levees (NL). Results indicate that bothLFD and LFI designs would reduce costs and require less soil disturbance compared to leveling to uniform slopes. LFD would require lesssoil movement and lower maximum cuts than LFI. However, LFI would reduce the lengths and numbers of rice levees that could have long-term economic and agronomic benefits not captured in these analyses. These results demonstrate that all land-leveling and land-formingalternatives should be thoroughly examined before undertaking field operations. Study outcomes will be useful to engineers and producers inevaluating options to improve the agricultural productivity of lowlands in southern Brazil, a region of national and international significance. MenosLand leveling is used to correct soil surface irregularities to improve surface drainage and irrigation. It also makes the area moremanageable for an array of agricultural activities such as planting and harvesting. The objective of this work was to evaluate two designs ofland forming, one aimed at optimizing drainage and the other at optimizing surface irrigation, using fields with reliefs typical of the lowlandsof southern Brazil. Seven commercial rice fields, ranging in size from 7 to 26 ha, were randomly selected and digital elevation designsgenerated for each. Land-leveling projects were developed using three designs: uniform slope (US) (control), land forming?drainage(LFD), and land forming?irrigation (LFI). Performance comparisons between the designs were evaluated through impacts on soil movement(SM), maximum cut in 99% of the area (MC), cumulative length of levees (LL), and total number of levees (NL). Results indicate that bothLFD and LFI designs would reduce costs and require less soil disturbance compared to leveling to uniform slopes. LFD would require lesssoil movement and lower maximum cuts than LFI. However, LFI would reduce the lengths and numbers of rice levees that could have long-term economic and agronomic benefits not captured in these analyses. These results demonstrate that all land-leveling and land-formingalternatives should be thoroughly examined before undertaking field operations. Study outcomes will be useful to engineers and producers inevaluat... Mostrar Tudo |
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Thesagro: |
Agricultura de Precisão; Drenagem; Nivelamento da Terra; Solo Hidromórfico. |
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Categoria do assunto: |
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Marc: |
LEADER 02440naa a2200265 a 4500
001 2125370
005 2020-10-08
008 2020 bl uuuu u00u1 u #d
100 1 $aBUENO, M. V.
245 $aImproving the drainage and irrigation efficiencyof lowland soils$bland-formingoptions for southern Brazil.$h[electronic resource]
260 $c2020
300 $a8 p.
520 $aLand leveling is used to correct soil surface irregularities to improve surface drainage and irrigation. It also makes the area moremanageable for an array of agricultural activities such as planting and harvesting. The objective of this work was to evaluate two designs ofland forming, one aimed at optimizing drainage and the other at optimizing surface irrigation, using fields with reliefs typical of the lowlandsof southern Brazil. Seven commercial rice fields, ranging in size from 7 to 26 ha, were randomly selected and digital elevation designsgenerated for each. Land-leveling projects were developed using three designs: uniform slope (US) (control), land forming?drainage(LFD), and land forming?irrigation (LFI). Performance comparisons between the designs were evaluated through impacts on soil movement(SM), maximum cut in 99% of the area (MC), cumulative length of levees (LL), and total number of levees (NL). Results indicate that bothLFD and LFI designs would reduce costs and require less soil disturbance compared to leveling to uniform slopes. LFD would require lesssoil movement and lower maximum cuts than LFI. However, LFI would reduce the lengths and numbers of rice levees that could have long-term economic and agronomic benefits not captured in these analyses. These results demonstrate that all land-leveling and land-formingalternatives should be thoroughly examined before undertaking field operations. Study outcomes will be useful to engineers and producers inevaluating options to improve the agricultural productivity of lowlands in southern Brazil, a region of national and international significance.
650 $aAgricultura de Precisão
650 $aDrenagem
650 $aNivelamento da Terra
650 $aSolo Hidromórfico
700 1 $aCAMPOS, A. D. S. de
700 1 $aSILVA, J. T. da
700 1 $aMASSEY, J.
700 1 $aTIMM, L. C.
700 1 $aFARIA, L. C.
700 1 $aROEL, A.
700 1 $aPARFITT, J. M. B.
773 $tJournal of Irrigation and Drainage Engineering$gv. 146, n. 8, 04020019, Aug. 2020.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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Classificação |
Cutter |
Registro |
Volume |
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Registro Completo
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Biblioteca(s): |
Embrapa Acre; Embrapa Amazônia Oriental; Embrapa Florestas. |
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Data corrente: |
20/03/2000 |
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Data da última atualização: |
31/07/2017 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
FERREIRA, C. A.; SILVA, J. N. M.; CARVALHO, J. O. P. de; SANTOS, A. F. dos; AZEVEDO, C. P. de; LIMA, R. M. B. de; NEVES, E. J. M.; SCHWENGBER, D. R.; ARAUJO, H. J. B. de. |
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Afiliação: |
Embrapa Florestas; Embrapa Amazônia Oriental; Embrapa Amazônia Oriental; ALVARO FIGUEREDO DOS SANTOS, CNPF; Embrapa Amazônia Ocidental; Embrapa Amazônia Ocidental; Embrapa Amazônia Ocidental; Embrapa Roraima; Embrapa Acre. |
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Título: |
Manejo florestal na Amazônia brasileira (situação atual e perspectivas). |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Colombo: Embrapa Florestas, 1999. |
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Páginas: |
20p. |
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Série: |
(Embrapa Florestas. Documentos, 37). |
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ISSN: |
1517-536X |
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Idioma: |
Português |
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Conteúdo: |
A analise da situacao do manejo florestal na Amazonia brasileira deve basear-se nas seguintes consideracoes: Localizar-se na Amazonia brasileira, a maior reserva de florestas tropicais do mundo, cuja area aproxima-se dos 285 milhoes de hectares; O estoque de madeira em pe, desta floresta, e da ordem de 45 milhoes de metros cubicos; Alem da madeira, a Floresta Amazonica tem outras riquesas como oleos, resinas, fibras, frutas e plantas medicinais; |
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Palavras-Chave: |
Amazon; Amazonas; Amazonica; Brasil; Exploracao; Exploração Madeireira; Exploratation; Forest; Management; Manejo Florestal; Production; Recursos Florestais; Sistema de Produção Florestal; Sustainability; Systems; Tropical rain forest; Woods. |
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Thesagro: |
Desenvolvimento Sustentável; Floresta; Floresta Tropical Úmida; Indústria Florestal; Madeira; Manejo; Pesquisa; Pesquisa Florestal; Produção; Produção Florestal; Recurso Florestal; Setor florestal; Sistema de Produção. |
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Thesaurus NAL: |
Amazonia; Brazil; forest management; forest products industry; forest resources; forests; research; sustainable development; wood. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/162210/1/Doc-37.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/37859/1/doc37.pdf
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Marc: |
LEADER 02326nam a2200709 a 4500
001 1290712
005 2017-07-31
008 1999 bl uuuu u0uu1 u #d
022 $a1517-536X
100 1 $aFERREIRA, C. A.
245 $aManejo florestal na Amazônia brasileira (situação atual e perspectivas).
260 $aColombo: Embrapa Florestas$c1999
300 $a20p.
490 $a(Embrapa Florestas. Documentos, 37).
520 $aA analise da situacao do manejo florestal na Amazonia brasileira deve basear-se nas seguintes consideracoes: Localizar-se na Amazonia brasileira, a maior reserva de florestas tropicais do mundo, cuja area aproxima-se dos 285 milhoes de hectares; O estoque de madeira em pe, desta floresta, e da ordem de 45 milhoes de metros cubicos; Alem da madeira, a Floresta Amazonica tem outras riquesas como oleos, resinas, fibras, frutas e plantas medicinais;
650 $aAmazonia
650 $aBrazil
650 $aforest management
650 $aforest products industry
650 $aforest resources
650 $aforests
650 $aresearch
650 $asustainable development
650 $awood
650 $aDesenvolvimento Sustentável
650 $aFloresta
650 $aFloresta Tropical Úmida
650 $aIndústria Florestal
650 $aMadeira
650 $aManejo
650 $aPesquisa
650 $aPesquisa Florestal
650 $aProdução
650 $aProdução Florestal
650 $aRecurso Florestal
650 $aSetor florestal
650 $aSistema de Produção
653 $aAmazon
653 $aAmazonas
653 $aAmazonica
653 $aBrasil
653 $aExploracao
653 $aExploração Madeireira
653 $aExploratation
653 $aForest
653 $aManagement
653 $aManejo Florestal
653 $aProduction
653 $aRecursos Florestais
653 $aSistema de Produção Florestal
653 $aSustainability
653 $aSystems
653 $aTropical rain forest
653 $aWoods
700 1 $aSILVA, J. N. M.
700 1 $aCARVALHO, J. O. P. de
700 1 $aSANTOS, A. F. dos
700 1 $aAZEVEDO, C. P. de
700 1 $aLIMA, R. M. B. de
700 1 $aNEVES, E. J. M.
700 1 $aSCHWENGBER, D. R.
700 1 $aARAUJO, H. J. B. de
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Embrapa Florestas (CNPF) |
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