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Registro Completo |
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
12/05/2022 |
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Data da última atualização: |
12/05/2022 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
COLLICCHIO, E.; ROCHA, H. R. da; VICTORIA, D. de C.; ANDRADE, A. de M.; TOLEDO, A. M. A. |
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Afiliação: |
ERICH COLLICCHIO, UFT; HUMBERTO RIBEIRO DA ROCHA, USP; DANIEL DE CASTRO VICTORIA, CNPTIA; ANDRÉ DE MOURA ANDRADE, SEMARH; ANDRÉ MARCONDES ANDRADE TOLEDO, UFSCar. |
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Título: |
Potenciais efeitos dos cenários futuros do clima na aptidão agroclimática da cana-de-açúcar no estado do Tocantins. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: COLLICCHIO, E.; ROCHA, H. R. da (org.). Agricultura e mudanças do clima no estado do Tocantins: vulnerabilidades, projeções e desenvolvimento. Palmas, TO: EdUFT, 2022. pt. III, cap, 9, p. 201-222. |
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ISBN: |
978-65-5390-006-6 |
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Idioma: |
Português |
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Conteúdo: |
O presente trabalho teve como objetivo geral de elaborar o zoneamento agroclimático para a cultura da cana-de-açúcar no Estado do Tocantins, considerando a condição do clima atual e projeções de possíveis impactos das mudanças climáticas com base nos resultados dos modelos GFDL e HadCM3 para dois cenários de emissões, que integram o AR4 do IPCC (2007), bem como dos modelos Eta MIROC5 e Eta HadGEM2-ES, para dois cenários do AR5 (IPCC, 2013), considerando o período de 2021 a 2050. |
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Palavras-Chave: |
Zoneamento agroclimático. |
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Thesagro: |
Balanço Hídrico; Cana de Açúcar; Clima. |
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Thesaurus Nal: |
Agricultural zoning; Sugarcane; Water balance. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1142915/1/PL-Potenciais-efeitos-cenarios-2022.pdf
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Marc: |
LEADER 01459naa a2200265 a 4500
001 2142915
005 2022-05-12
008 2022 bl uuuu u00u1 u #d
020 $a978-65-5390-006-6
100 1 $aCOLLICCHIO, E.
245 $aPotenciais efeitos dos cenários futuros do clima na aptidão agroclimática da cana-de-açúcar no estado do Tocantins.$h[electronic resource]
260 $c2022
520 $aO presente trabalho teve como objetivo geral de elaborar o zoneamento agroclimático para a cultura da cana-de-açúcar no Estado do Tocantins, considerando a condição do clima atual e projeções de possíveis impactos das mudanças climáticas com base nos resultados dos modelos GFDL e HadCM3 para dois cenários de emissões, que integram o AR4 do IPCC (2007), bem como dos modelos Eta MIROC5 e Eta HadGEM2-ES, para dois cenários do AR5 (IPCC, 2013), considerando o período de 2021 a 2050.
650 $aAgricultural zoning
650 $aSugarcane
650 $aWater balance
650 $aBalanço Hídrico
650 $aCana de Açúcar
650 $aClima
653 $aZoneamento agroclimático
700 1 $aROCHA, H. R. da
700 1 $aVICTORIA, D. de C.
700 1 $aANDRADE, A. de M.
700 1 $aTOLEDO, A. M. A.
773 $tIn: COLLICCHIO, E.; ROCHA, H. R. da (org.). Agricultura e mudanças do clima no estado do Tocantins: vulnerabilidades, projeções e desenvolvimento. Palmas, TO: EdUFT, 2022. pt. III, cap, 9, p. 201-222.
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Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
01/12/2023 |
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Data da última atualização: |
01/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ABRELL, T.; NAUDIN, K.; BIANCHI, F. J. J. A.; ARAGAO, D. V.; TITTONELL, P.; CORBEELS, M. |
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Afiliação: |
THOMAS ABRELL, CENTRE DE COOPÉRATION INTERNATIONALE EN RECHERCHE AGRONOMIQUE POUR LE DÉVELOPPEMENT; KRISHNA NAUDIN, CENTRE DE COOPÉRATION INTERNATIONALE EN RECHERCHE AGRONOMIQUE POUR LE DÉVELOPPEMENT; FELIX J. J. A. BIANCHI, WAGENINGEN UNIVERSITY AND RESEARCH; DEBORA VEIGA DE ARAGAO, CPATU; PABLO TITTONELL, CENTRE DE COOPÉRATION INTERNATIONALE EN RECHERCHE AGRONOMIQUE POUR LE DÉVELOPPEMENT; MARC CORBEELS, CENTRE DE COOPÉRATION INTERNATIONALE EN RECHERCHE AGRONOMIQUE POUR LE DÉVELOPPEMENT. |
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Título: |
Shifting cultivation in decline: An analysis of soil fertility and weed pressure in intensified cropping systems in Eastern Amazon. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, v. 360, 108793, 2024. |
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DOI: |
https://doi.org/10.1016/j.agee.2023.108793 |
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Idioma: |
Inglês |
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Conteúdo: |
Reconciling forest preservation and agricultural production is a major challenge. In Brazil, environmental laws have been introduced to reduce forest degradation associated with the expansion of agriculture. However, these laws are constraining small-scale family farmers who rely on cassava produced in shifting cultivation. Faced by scarcity of land, farmers are reducing the fallow periods on their farms. In this study, our hypothesis was that the reduction of the fallow period in shifting cultivation systems leads to a depletion of soil fertility and an increase in weed pressure. In the Brazilian Eastern Amazon region, soil fertility and weed infestation indicators were assessed in 36 cassava fields under shifting cultivation with different land-use histories. The frequency of cultivation of the fields in the past 10 years ranged from 1 to 7 and averaged 3.7 ± 2.3. The results show that the most frequently cultivated fields had lower soil fertility, indicated by lower soil organic carbon, total nitrogen and exchangeable potassium and pH. In addition, labor input for weeding and weeding frequency increased with the frequency of cultivation of the fields, indicating that weed pressure increased with intensified crop cultivation and shorter fallow periods. The findings of this study make clear that the current trend of reducing the fallow period in the Eastern Amazon is a threat to the sustainability and productivity of the local shifting cultivation systems. There is an urgent need for alternative production systems that allow for a better weed control and that contribute to restoring and maintaining soil fertility. MenosReconciling forest preservation and agricultural production is a major challenge. In Brazil, environmental laws have been introduced to reduce forest degradation associated with the expansion of agriculture. However, these laws are constraining small-scale family farmers who rely on cassava produced in shifting cultivation. Faced by scarcity of land, farmers are reducing the fallow periods on their farms. In this study, our hypothesis was that the reduction of the fallow period in shifting cultivation systems leads to a depletion of soil fertility and an increase in weed pressure. In the Brazilian Eastern Amazon region, soil fertility and weed infestation indicators were assessed in 36 cassava fields under shifting cultivation with different land-use histories. The frequency of cultivation of the fields in the past 10 years ranged from 1 to 7 and averaged 3.7 ± 2.3. The results show that the most frequently cultivated fields had lower soil fertility, indicated by lower soil organic carbon, total nitrogen and exchangeable potassium and pH. In addition, labor input for weeding and weeding frequency increased with the frequency of cultivation of the fields, indicating that weed pressure increased with intensified crop cultivation and shorter fallow periods. The findings of this study make clear that the current trend of reducing the fallow period in the Eastern Amazon is a threat to the sustainability and productivity of the local shifting cultivation systems. There is an urgen... Mostrar Tudo |
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Palavras-Chave: |
Produção sustentável; Sustainable production. |
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Thesagro: |
Conservação do Solo; Erva Daninha; Fertilidade do Solo; Mandioca. |
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Thesaurus NAL: |
Cassava; Soil conservation; Weed control. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02591naa a2200301 a 4500
001 2158999
005 2023-12-01
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.agee.2023.108793$2DOI
100 1 $aABRELL, T.
245 $aShifting cultivation in decline$bAn analysis of soil fertility and weed pressure in intensified cropping systems in Eastern Amazon.$h[electronic resource]
260 $c2024
520 $aReconciling forest preservation and agricultural production is a major challenge. In Brazil, environmental laws have been introduced to reduce forest degradation associated with the expansion of agriculture. However, these laws are constraining small-scale family farmers who rely on cassava produced in shifting cultivation. Faced by scarcity of land, farmers are reducing the fallow periods on their farms. In this study, our hypothesis was that the reduction of the fallow period in shifting cultivation systems leads to a depletion of soil fertility and an increase in weed pressure. In the Brazilian Eastern Amazon region, soil fertility and weed infestation indicators were assessed in 36 cassava fields under shifting cultivation with different land-use histories. The frequency of cultivation of the fields in the past 10 years ranged from 1 to 7 and averaged 3.7 ± 2.3. The results show that the most frequently cultivated fields had lower soil fertility, indicated by lower soil organic carbon, total nitrogen and exchangeable potassium and pH. In addition, labor input for weeding and weeding frequency increased with the frequency of cultivation of the fields, indicating that weed pressure increased with intensified crop cultivation and shorter fallow periods. The findings of this study make clear that the current trend of reducing the fallow period in the Eastern Amazon is a threat to the sustainability and productivity of the local shifting cultivation systems. There is an urgent need for alternative production systems that allow for a better weed control and that contribute to restoring and maintaining soil fertility.
650 $aCassava
650 $aSoil conservation
650 $aWeed control
650 $aConservação do Solo
650 $aErva Daninha
650 $aFertilidade do Solo
650 $aMandioca
653 $aProdução sustentável
653 $aSustainable production
700 1 $aNAUDIN, K.
700 1 $aBIANCHI, F. J. J. A.
700 1 $aARAGAO, D. V.
700 1 $aTITTONELL, P.
700 1 $aCORBEELS, M.
773 $tAgriculture, Ecosystems and Environment$gv. 360, 108793, 2024.
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