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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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Biblioteca(s): |
Embrapa Amapá. |
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Data corrente: |
26/10/2017 |
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Data da última atualização: |
26/10/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
EULER, A. M. C.; PACAUD, N.; GUEDES, M. C.; NICOLLE, S.; YARED, J. A. G.; SOTTA, E. D.; BLANC, L.; DESCROIX, L. |
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Afiliação: |
ANA MARGARIDA CASTRO EULER, CPAF-AP; AgroParisTech, Aubiere, France; MARCELINO CARNEIRO GUEDES, CPAF-AP; AgroParisTech, Montpellier, France; JORGE ALBERTO GAZEL YARED, CPAF-AP; ELENEIDE DOFF SOTTA, CPAF-AP; Cirad, Montpellier, France; ONF, Fontainebleau, France. |
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Título: |
Actors' perception on future wood production in a cross-border amazonian region: challenges for a sustainable production. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: IUFRO ANNIVERSARY CONGRESS, 125., 2017, Freiburg. Abstract book. [S.n.: s.l], 2017. |
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Páginas: |
p. 260 |
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Idioma: |
Inglês |
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Notas: |
Na publicação consta: Castro Euler, A. M; Guedes, M.; Gazel Yared, J. A.; Doff Sotta, E.
IUFRO17-2755. |
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Conteúdo: |
We conducted a study in a cross-border region of Amazonia to analyze the future role of natural forests in producing wood products. French Guiana and the state of Amapa are sharing similar geographical properties. A predominant area of these two territories are dominated by undisturbed tropical forests. In both regions, over 70% of forest areas is under public ownership. Currently the forestry sector in both regions do not have a key role in local economies, with low legal wood production in French Guiana (75 000 m3) as well as in Amapa (around 120 000 m3). Although in Amapá there is a high level of illegality in the sector (85%). In French Guiana and Amapa, forestry activities might represent an economical opportunity to promote endogenous development. The forest sector, including private and public actors, will face strategic choices to respond to increasing demand in wood supply for the coming decades. Strategic choices, based on strong political decisions, include the volume of wood to be produced locally, type of actors involved (i.e. communities, private companies), type of production (timber vs fuelwood) and origin of wood (plantation vs natural forest). Based on a prospective approach, we identified various scenarios, for each region, to reach the wood supply by 2045. First, we interviewed key actors of the forestry sector to obtain the view from their perspective. Second we selected the key variables to construct the scenarios and validated the resulting scenarios through a discussion with all actors. The scenarios identified in French Guiana had the implementation of tree plantation with local species as alternative to natural forest management, while in Amapa they focused on forest management associated with public policy and social factors. These scenarios are providing a framework of discussions that could help actors to focus on long term and to imagine the likely impact of current policy choices on the socioeconomy and conservation of natural forests. MenosWe conducted a study in a cross-border region of Amazonia to analyze the future role of natural forests in producing wood products. French Guiana and the state of Amapa are sharing similar geographical properties. A predominant area of these two territories are dominated by undisturbed tropical forests. In both regions, over 70% of forest areas is under public ownership. Currently the forestry sector in both regions do not have a key role in local economies, with low legal wood production in French Guiana (75 000 m3) as well as in Amapa (around 120 000 m3). Although in Amapá there is a high level of illegality in the sector (85%). In French Guiana and Amapa, forestry activities might represent an economical opportunity to promote endogenous development. The forest sector, including private and public actors, will face strategic choices to respond to increasing demand in wood supply for the coming decades. Strategic choices, based on strong political decisions, include the volume of wood to be produced locally, type of actors involved (i.e. communities, private companies), type of production (timber vs fuelwood) and origin of wood (plantation vs natural forest). Based on a prospective approach, we identified various scenarios, for each region, to reach the wood supply by 2045. First, we interviewed key actors of the forestry sector to obtain the view from their perspective. Second we selected the key variables to construct the scenarios and validated the resulting scenarios t... Mostrar Tudo |
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Palavras-Chave: |
Prospecção; Prospection. |
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Thesagro: |
Floresta. |
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Thesaurus NAL: |
Forestry. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/165608/1/CPAF-AP-2017-Actors-perception-on-future-wood.pdf
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Marc: |
LEADER 02889nam a2200265 a 4500
001 2078242
005 2017-10-26
008 2017 bl uuuu u00u1 u #d
100 1 $aEULER, A. M. C.
245 $aActors' perception on future wood production in a cross-border amazonian region$bchallenges for a sustainable production.$h[electronic resource]
260 $aIn: IUFRO ANNIVERSARY CONGRESS, 125., 2017, Freiburg. Abstract book. [S.n.: s.l]$c2017
300 $ap. 260
500 $aNa publicação consta: Castro Euler, A. M; Guedes, M.; Gazel Yared, J. A.; Doff Sotta, E. IUFRO17-2755.
520 $aWe conducted a study in a cross-border region of Amazonia to analyze the future role of natural forests in producing wood products. French Guiana and the state of Amapa are sharing similar geographical properties. A predominant area of these two territories are dominated by undisturbed tropical forests. In both regions, over 70% of forest areas is under public ownership. Currently the forestry sector in both regions do not have a key role in local economies, with low legal wood production in French Guiana (75 000 m3) as well as in Amapa (around 120 000 m3). Although in Amapá there is a high level of illegality in the sector (85%). In French Guiana and Amapa, forestry activities might represent an economical opportunity to promote endogenous development. The forest sector, including private and public actors, will face strategic choices to respond to increasing demand in wood supply for the coming decades. Strategic choices, based on strong political decisions, include the volume of wood to be produced locally, type of actors involved (i.e. communities, private companies), type of production (timber vs fuelwood) and origin of wood (plantation vs natural forest). Based on a prospective approach, we identified various scenarios, for each region, to reach the wood supply by 2045. First, we interviewed key actors of the forestry sector to obtain the view from their perspective. Second we selected the key variables to construct the scenarios and validated the resulting scenarios through a discussion with all actors. The scenarios identified in French Guiana had the implementation of tree plantation with local species as alternative to natural forest management, while in Amapa they focused on forest management associated with public policy and social factors. These scenarios are providing a framework of discussions that could help actors to focus on long term and to imagine the likely impact of current policy choices on the socioeconomy and conservation of natural forests.
650 $aForestry
650 $aFloresta
653 $aProspecção
653 $aProspection
700 1 $aPACAUD, N.
700 1 $aGUEDES, M. C.
700 1 $aNICOLLE, S.
700 1 $aYARED, J. A. G.
700 1 $aSOTTA, E. D.
700 1 $aBLANC, L.
700 1 $aDESCROIX, L.
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