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 | Acesso ao texto completo restrito à biblioteca da Embrapa Territorial. Para informações adicionais entre em contato com cnpm.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
11/12/2017 |
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Data da última atualização: |
03/05/2019 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
TEIXEIRA, A. H. de C.; LEIVAS, J. F.; RONQUIM, C. C.; GARCON, E. A. M.; SILVA, G. B. S. da. |
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Afiliação: |
ANTONIO HERIBERTO DE C TEIXEIRA, CNPM; JANICE FREITAS LEIVAS, CNPM; CARLOS CESAR RONQUIM, CNPM; EDLENE APARECIDA MONTEIRO GARCON, CNPM; GUSTAVO BAYMA SIQUEIRA DA SILVA, CNPM. |
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Título: |
Water and vegetation indices by using MODIS products for eucalyptus, pasture, and natural ecosystems in the eastern São Paulo state, Southeast Brazil. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: REMOTE SENSING FOR AGRICULTURE, ECOSYSTEMS, AND HYDROLOGY, 19., 2017, Warsaw. Proceedings... Warsaw: SPIE, 2017. (SPIE proceedings, v. 10421). |
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Páginas: |
p. 1042112-1-1042112-12. |
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ISBN: |
0277-786X |
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DOI: |
10.1117/12.2277930 |
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Idioma: |
Inglês |
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Conteúdo: |
Eucalyptus (Ec) and pasture (Pt) are expanding while natural vegetation (Nv) are losing space in the Paraíba Valley, eastern side of the São Paulo state, Southeast Brazil. For quantification of water and vegetation conditions, the MODIS product MOD13Q1 was used together with a net of weather stations and vegetation land masks during the year 2015. The SAFER algorithm was applied to retrieve the actual evapotranspiration (ET), which was combined with the Monteithꞌs radiation use efficiency (RUE) model to estimate the biomass production (BIO). Three moisture indices were applied, the climatic water balance ratio (WBr), the ratio of precipitation (P) to ET, the water balance deficit (WBd), the difference between P and ET, and the evapotranspiration ratio (ETr), the ratio of ET to the reference evapotranspiration (ET0). On the one hand, the highest ET rates for the Ec ecosystem should be a negative aspect under water scarcity conditions; however, it presented the best water productivity. Although the Ec ecosystem presenting the lowest WBr and WBd values, it had the highest ETr, averaging 0.92, when comparing to those for Nv (0.88) and Pt (0.79). These results indicated that eucalyptus plants have greater ability of conserving soil moisture in their root zones, increasing WP, when comparing with Pt and Nv ecosystems. These water relationships are relevant issues under the land-use change conditions in the Paraiba Valley, confirming the suitability of using the MODIS products together with weather stations to study the ecosystem dynamics. MenosEucalyptus (Ec) and pasture (Pt) are expanding while natural vegetation (Nv) are losing space in the Paraíba Valley, eastern side of the São Paulo state, Southeast Brazil. For quantification of water and vegetation conditions, the MODIS product MOD13Q1 was used together with a net of weather stations and vegetation land masks during the year 2015. The SAFER algorithm was applied to retrieve the actual evapotranspiration (ET), which was combined with the Monteithꞌs radiation use efficiency (RUE) model to estimate the biomass production (BIO). Three moisture indices were applied, the climatic water balance ratio (WBr), the ratio of precipitation (P) to ET, the water balance deficit (WBd), the difference between P and ET, and the evapotranspiration ratio (ETr), the ratio of ET to the reference evapotranspiration (ET0). On the one hand, the highest ET rates for the Ec ecosystem should be a negative aspect under water scarcity conditions; however, it presented the best water productivity. Although the Ec ecosystem presenting the lowest WBr and WBd values, it had the highest ETr, averaging 0.92, when comparing to those for Nv (0.88) and Pt (0.79). These results indicated that eucalyptus plants have greater ability of conserving soil moisture in their root zones, increasing WP, when comparing with Pt and Nv ecosystems. These water relationships are relevant issues under the land-use change conditions in the Paraiba Valley, confirming the suitability of using the MODIS produc... Mostrar Tudo |
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Palavras-Chave: |
Land use changes. |
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Thesaurus Nal: |
Ecosystems; Remote sensing; Water resources. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02463nam a2200241 a 4500
001 2082020
005 2019-05-03
008 2017 bl uuuu u00u1 u #d
022 $a0277-786X
024 7 $a10.1117/12.2277930$2DOI
100 1 $aTEIXEIRA, A. H. de C.
245 $aWater and vegetation indices by using MODIS products for eucalyptus, pasture, and natural ecosystems in the eastern São Paulo state, Southeast Brazil.$h[electronic resource]
260 $aIn: REMOTE SENSING FOR AGRICULTURE, ECOSYSTEMS, AND HYDROLOGY, 19., 2017, Warsaw. Proceedings... Warsaw: SPIE, 2017. (SPIE proceedings, v. 10421).$c2017
300 $ap. 1042112-1-1042112-12.
520 $aEucalyptus (Ec) and pasture (Pt) are expanding while natural vegetation (Nv) are losing space in the Paraíba Valley, eastern side of the São Paulo state, Southeast Brazil. For quantification of water and vegetation conditions, the MODIS product MOD13Q1 was used together with a net of weather stations and vegetation land masks during the year 2015. The SAFER algorithm was applied to retrieve the actual evapotranspiration (ET), which was combined with the Monteithꞌs radiation use efficiency (RUE) model to estimate the biomass production (BIO). Three moisture indices were applied, the climatic water balance ratio (WBr), the ratio of precipitation (P) to ET, the water balance deficit (WBd), the difference between P and ET, and the evapotranspiration ratio (ETr), the ratio of ET to the reference evapotranspiration (ET0). On the one hand, the highest ET rates for the Ec ecosystem should be a negative aspect under water scarcity conditions; however, it presented the best water productivity. Although the Ec ecosystem presenting the lowest WBr and WBd values, it had the highest ETr, averaging 0.92, when comparing to those for Nv (0.88) and Pt (0.79). These results indicated that eucalyptus plants have greater ability of conserving soil moisture in their root zones, increasing WP, when comparing with Pt and Nv ecosystems. These water relationships are relevant issues under the land-use change conditions in the Paraiba Valley, confirming the suitability of using the MODIS products together with weather stations to study the ecosystem dynamics.
650 $aEcosystems
650 $aRemote sensing
650 $aWater resources
653 $aLand use changes
700 1 $aLEIVAS, J. F.
700 1 $aRONQUIM, C. C.
700 1 $aGARCON, E. A. M.
700 1 $aSILVA, G. B. S. da
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Registro original: |
Embrapa Territorial (CNPM) |
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Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
22/11/2002 |
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Data da última atualização: |
28/02/2023 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
PEREZ, D. V.; MACEDO, J. R. de; SILVEIRA, G. S. R.; MENEGUELLI, N. do A.; CASTRO, I. M. de; FERREIRA, J. C. S. |
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Afiliação: |
DANIEL VIDAL PEREZ, CNPS; JOSE RONALDO DE MACEDO, CNPS; GEORGETON SOARES RIBEIRO SILVEIRA, EMATER; NELI DO AMARAL MENEGUELLI, CNPS; IZABELA MIRANDA DE CASTRO, CTAA; JOSE CARLOS SA FERREIRA, CTAA. |
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Título: |
Efeito de doses de fósforo e fontes de potássio na produtividade e qualidade comercial da batata (Solanum tuberosum, L., cv. Achat). |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Rio de Janeiro: Embrapa Solos, 2001. |
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Páginas: |
4 p. |
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Série: |
(Embrapa Solos. Comunicado técnico, 8). |
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ISSN: |
1517-5685 |
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Idioma: |
Português |
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Conteúdo: |
O presente trabalho teve como objetivo avaliar a resposta da batata quanto à aplicação de cinco níveis de fósforo (O; 100; 200; 400; 800 kg.ha' 1 de P205) e ao uso de duas fontes de potássio (sulfato e cloreto). |
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Thesagro: |
Batata; Fósforo; Potássio; Produtividade; Solanum Tuberosum. |
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Categoria do assunto: |
--
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/62871/1/CNPS-COM.-TEC.-08-01.pdf
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Marc: |
LEADER 01003nam a2200265 a 4500
001 1338084
005 2023-02-28
008 2001 bl uuuu u0uu1 u #d
022 $a1517-5685
100 1 $aPEREZ, D. V.
245 $aEfeito de doses de fósforo e fontes de potássio na produtividade e qualidade comercial da batata (Solanum tuberosum, L., cv. Achat).
260 $aRio de Janeiro: Embrapa Solos$c2001
300 $a4 p.
490 $a(Embrapa Solos. Comunicado técnico, 8).
520 $aO presente trabalho teve como objetivo avaliar a resposta da batata quanto à aplicação de cinco níveis de fósforo (O; 100; 200; 400; 800 kg.ha' 1 de P205) e ao uso de duas fontes de potássio (sulfato e cloreto).
650 $aBatata
650 $aFósforo
650 $aPotássio
650 $aProdutividade
650 $aSolanum Tuberosum
700 1 $aMACEDO, J. R. de
700 1 $aSILVEIRA, G. S. R.
700 1 $aMENEGUELLI, N. do A.
700 1 $aCASTRO, I. M. de
700 1 $aFERREIRA, J. C. S.
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