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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
04/09/2014 |
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Data da última atualização: |
12/08/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
ARAÚJO, E, F.; ANDRADE JUNIOR, A. S. de; SILVA, E. M.; SANTOS, E, de O.; SOUZA, K. B. de. |
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Afiliação: |
EMANUEL FRANÇA ARAÚJO, UFPI, Bom Jesus/PI.; ADERSON SOARES DE ANDRADE JUNIOR, CPAMN; EVERALDO MOREIRA SILVA, UFPI/CPCE Bom Jesus/PI.; EDSON DE OLIVEIRA SANTOS, UFPI, Bom Jesus/PI.; KAÍSE BARBOSA DE SOUZA, UFPI, Bom Jesus/PI. |
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Título: |
Comparação de seis métodos empíricos de estimativa da evapotranspiração de referência para a cidade de Picos - PI. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ENGENHARIA AGRÍCOLA, 43., 2014, Campo Grande-MS. Resumos expandidos... Campo Grande-MS: SBEA, 2014. |
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Idioma: |
Português |
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Notas: |
CONBEA 2014. |
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Conteúdo: |
A evapotranspiração de referência (ETo) sendo quantificada diariamente é a base para se determinar a lâmina de irrigação a ser aplicada aos cultivos. Este trabalho objetivou comparar e avaliar o desempenho de métodos empíricos de estimativa da ETo, de modo a proporcionar maior acessibilidade à estimativa de ETo no município de Picos, Piauí. Os dados climáticos foram obtidos junto ao Instituto Nacional de Meteorologia (INMET), em escala diária referentes ao período chuvoso (novembro a abril) e seco (maio a outubro), nos anos de 2010 a 2012. Os métodos de estimativa de ETo avaliados foram os de Makking (MK), Hargreaves-Samani (HS), Blaney-Criddle (BC), Ivanov (IVN) Jensen-Haise (JH), Camargo (CM), e Priestley-Taylor (PT), admitindo como método padrão para comparação o de Penman-Monteith FAO (PM-FAO 56). Foram realizados cálculos do erro padrão da estimativa (EPE), dos coeficientes de determinação (R2), correlação (r), índice de Willmott (d) e de confiança (c). Os modelos JH, HS e CM foram os que mais se aproximaram do padrão de FAO para média mensal. Em relação ao período chuvoso e seco, o método JH apresentou o melhor desempenho para ambos os períodos, seguido dos métodos PT e MK para o período chuvoso e PT para o período seco. |
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Palavras-Chave: |
FAO Penman-Monteith. |
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Thesagro: |
Evapotranspiração; Irrigação. |
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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/107823/1/R0311-1.pdf
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Marc: |
LEADER 02023nam a2200205 a 4500
001 1994296
005 2023-08-12
008 2014 bl uuuu u00u1 u #d
100 1 $aARAÚJO, E, F.
245 $aComparação de seis métodos empíricos de estimativa da evapotranspiração de referência para a cidade de Picos - PI.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE ENGENHARIA AGRÍCOLA, 43., 2014, Campo Grande-MS. Resumos expandidos... Campo Grande-MS: SBEA$c2014
500 $aCONBEA 2014.
520 $aA evapotranspiração de referência (ETo) sendo quantificada diariamente é a base para se determinar a lâmina de irrigação a ser aplicada aos cultivos. Este trabalho objetivou comparar e avaliar o desempenho de métodos empíricos de estimativa da ETo, de modo a proporcionar maior acessibilidade à estimativa de ETo no município de Picos, Piauí. Os dados climáticos foram obtidos junto ao Instituto Nacional de Meteorologia (INMET), em escala diária referentes ao período chuvoso (novembro a abril) e seco (maio a outubro), nos anos de 2010 a 2012. Os métodos de estimativa de ETo avaliados foram os de Makking (MK), Hargreaves-Samani (HS), Blaney-Criddle (BC), Ivanov (IVN) Jensen-Haise (JH), Camargo (CM), e Priestley-Taylor (PT), admitindo como método padrão para comparação o de Penman-Monteith FAO (PM-FAO 56). Foram realizados cálculos do erro padrão da estimativa (EPE), dos coeficientes de determinação (R2), correlação (r), índice de Willmott (d) e de confiança (c). Os modelos JH, HS e CM foram os que mais se aproximaram do padrão de FAO para média mensal. Em relação ao período chuvoso e seco, o método JH apresentou o melhor desempenho para ambos os períodos, seguido dos métodos PT e MK para o período chuvoso e PT para o período seco.
650 $aEvapotranspiração
650 $aIrrigação
653 $aFAO Penman-Monteith
700 1 $aANDRADE JUNIOR, A. S. de
700 1 $aSILVA, E. M.
700 1 $aSANTOS, E, de O.
700 1 $aSOUZA, K. B. de
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
11/12/2014 |
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Data da última atualização: |
18/10/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
MARQUARDT, K.; BARTHOLDSON, Ö.; PAIN, A.; PORRO, R.; SALOMSSON, L. |
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Afiliação: |
Kristina Marquardt, Swedish University of Agricultural Sciences; Örjan Bartholdson, Swedish University of Agricultural Sciences; Adam Pain, Swedish University of Agricultural Sciences; ROBERTO PORRO, CPATU; Lennart Salomsson, Swedish University of Agricultural Sciences. |
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Título: |
The Clash between Global Master-plans and Local Contexts: conflicts and contradictions within initiatives for payment of ecosystem services in Brazil and Nepal. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
In: EUROPEAN IFSA SYMPOSIUM, 11., 2014, Berlin. Farming systems facing global challenges: Capacities and strategies: Proceedings. [Müncheberg]: ZALF; [Vienna]: IFSA, 2014. |
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Páginas: |
p. 866-875. |
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Idioma: |
Inglês |
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Conteúdo: |
With the development of large-scale international agreements, such as REDD (United Nations Collaborative Programme on Reducing Emissions from Deforestation and Forest Degradation in Developing Countries), it is becoming increasingly important to examine the synergy between global masterplans, national endeavors and local actions in relation to environmental services provision and to mitigation and adaption to climate change. This paper will draw on a comparative study of two countries?, Brazil and Nepal, strategies and practices to deal with carbon emissions, i.e. examining the tensions and contradictions between mitigation agendas and the roles, practices and interests of the actors in the programmes and projects related to REDD. The data has been collected from contrasting case studies within the two countries (REDD and nonREDD cases). Preliminary evidence suggests that while the lack of synergy between global plans and local practices might be seen as simply a matter of ?coordination?, it actually reflects competing interests and agendas, both at national and local levels. The REDD plans are guided by a generic template, but how these plans are interpreted and implemented at national and local levels varies greatly, both between and within participating countries. The complexity of the REDD schemes creates a demand for actors who can plan and broker the processes. This complexity and the lack of an overarching reflexivity create a number of problems linked to transparency, complexity, lack of accountability and room for exploitation by powerful economic and political actors. This paper argues that these aspects often transform the planned results into unintended outcomes, depending on the particular configuration of local contextual factors and processes. MenosWith the development of large-scale international agreements, such as REDD (United Nations Collaborative Programme on Reducing Emissions from Deforestation and Forest Degradation in Developing Countries), it is becoming increasingly important to examine the synergy between global masterplans, national endeavors and local actions in relation to environmental services provision and to mitigation and adaption to climate change. This paper will draw on a comparative study of two countries?, Brazil and Nepal, strategies and practices to deal with carbon emissions, i.e. examining the tensions and contradictions between mitigation agendas and the roles, practices and interests of the actors in the programmes and projects related to REDD. The data has been collected from contrasting case studies within the two countries (REDD and nonREDD cases). Preliminary evidence suggests that while the lack of synergy between global plans and local practices might be seen as simply a matter of ?coordination?, it actually reflects competing interests and agendas, both at national and local levels. The REDD plans are guided by a generic template, but how these plans are interpreted and implemented at national and local levels varies greatly, both between and within participating countries. The complexity of the REDD schemes creates a demand for actors who can plan and broker the processes. This complexity and the lack of an overarching reflexivity create a number of problems linked to transparency... Mostrar Tudo |
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Palavras-Chave: |
Amazon; Himalaya; Manejo florestal; Paymentof ecosystem services; Smallholder agriculture. |
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Thesagro: |
Agricultura Familiar; Mudança Climática. |
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Thesaurus NAL: |
Amazonia; climate change; forest management. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/113574/1/WS-1-8-Marquardt.pdf
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Marc: |
LEADER 02816nam a2200289 a 4500
001 2002325
005 2022-10-18
008 2014 bl uuuu u00u1 u #d
100 1 $aMARQUARDT, K.
245 $aThe Clash between Global Master-plans and Local Contexts$bconflicts and contradictions within initiatives for payment of ecosystem services in Brazil and Nepal.$h[electronic resource]
260 $aIn: EUROPEAN IFSA SYMPOSIUM, 11., 2014, Berlin. Farming systems facing global challenges: Capacities and strategies: Proceedings. [Müncheberg]: ZALF; [Vienna]: IFSA$c2014
300 $ap. 866-875.
520 $aWith the development of large-scale international agreements, such as REDD (United Nations Collaborative Programme on Reducing Emissions from Deforestation and Forest Degradation in Developing Countries), it is becoming increasingly important to examine the synergy between global masterplans, national endeavors and local actions in relation to environmental services provision and to mitigation and adaption to climate change. This paper will draw on a comparative study of two countries?, Brazil and Nepal, strategies and practices to deal with carbon emissions, i.e. examining the tensions and contradictions between mitigation agendas and the roles, practices and interests of the actors in the programmes and projects related to REDD. The data has been collected from contrasting case studies within the two countries (REDD and nonREDD cases). Preliminary evidence suggests that while the lack of synergy between global plans and local practices might be seen as simply a matter of ?coordination?, it actually reflects competing interests and agendas, both at national and local levels. The REDD plans are guided by a generic template, but how these plans are interpreted and implemented at national and local levels varies greatly, both between and within participating countries. The complexity of the REDD schemes creates a demand for actors who can plan and broker the processes. This complexity and the lack of an overarching reflexivity create a number of problems linked to transparency, complexity, lack of accountability and room for exploitation by powerful economic and political actors. This paper argues that these aspects often transform the planned results into unintended outcomes, depending on the particular configuration of local contextual factors and processes.
650 $aAmazonia
650 $aclimate change
650 $aforest management
650 $aAgricultura Familiar
650 $aMudança Climática
653 $aAmazon
653 $aHimalaya
653 $aManejo florestal
653 $aPaymentof ecosystem services
653 $aSmallholder agriculture
700 1 $aBARTHOLDSON, Ö.
700 1 $aPAIN, A.
700 1 $aPORRO, R.
700 1 $aSALOMSSON, L.
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Embrapa Amazônia Oriental (CPATU) |
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