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| 2. |  | TONIETTO, J.; PEREIRA, R. V.; ZANUS, M. C.; FALCADE, I.; GUERRA, C. C. Criteria used in the specification document on the use for geographical indications of fine wines in Brazil. In: WORLD VINE AND WINE CONGRESS, 39.; GENERAL ASSEMBLY OF THE OIV, 14., 2016, Bento Gonçalves. Vitiviniculture: technological advances to market challenges: abstracts. Bento Gonçalves: International Organisation of Vine and Wine, n. 2016-1087, 2016.| Biblioteca(s): Embrapa Uva e Vinho. |
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| 3. | | TONIETTO, J.; PEREIRA, R. V.; ZANUS, M. C.; GUERRA, C. C.; FALCADE, I. Criteria used in the specifications for geographical indications of fine wines in Brazil / Critères utilisés dans les cahiers des charges des indications géographiques des vins fins au Brésil. BIO Web of Conferences, EDP Sciences, Les Ulis, France, v .7 , n. 03001 [online], 2016. Também publicado em: WORLD VINE AND WINE CONGRESS, 39.; GENERAL ASSEMBLY OF THE OIV, 14., 2016, Bento Gonçalves. Vitiviniculture: technological advances to market challenges: abstracts. Bento Gonçalves: International Organisation of Vine...| Biblioteca(s): Embrapa Uva e Vinho. |
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| 6. | | LOPES, N. J. S.; MARAFELI, P. P.; ZACARIAS, M. S.; ALVES, E. C.; REZENDE, C. M.; PEREIRA, R. V. Acarofauna associada às espécies frutíferas utilizadas como sombreamento em consórcio com cafeeiro. In: CONGRESSO DE INICIAÇÃO CIENTÍFICA DA UFLA, 27., 2015, Lavras. [Anais...]. Lavras: Universidade Federal de Lavras, 2015. Sessão: 2, Número pôster: 23. Instituição de Fomento: Consórcio Pesquisa Café - EMBRAPA Café| Biblioteca(s): Embrapa Café. |
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| 7. | | TROMBETE, F. M.; PORTO, Y. D.; FREITAS-SILVA, O.; PEREIRA, R. V.; DIREITO, G. M.; SALDANHA, T.; FRAGA, M. E. Reduction of aflatoxins and deoxynivalenol on wheat grains (Triticum Aestivum) by gaseous ozone. In: SIMPÓSIO NACIONAL, 2., 2015, Lisboa. Promoção de uma alimentação saudável e segura. Qualidade Nutricional e Processamento Alimentar: livro de resumos. Lisboa: Instituto Nacional de Saúde Doutor Ricardo Jorge. 1 p. P 46, p. 88. SPASS 2015.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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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: |
22/04/2020 |
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Data da última atualização: |
28/12/2023 |
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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: |
BOURGOIN, C.; BETBEDER, J.; COUTERON, P.; BLANC, L.; DESSARD, H.; OSZWALD, J.; LE ROUX, R.; CORNU, G.; REYMONDIN, L.; FREITAS, L. J. M. de; SIST, P.; LÄDERACH, P.; GOND, V. |
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Afiliação: |
Clément Bourgoin, CIRAD / Univ Montpellier / CIAT; Julie Betbeder, CIRAD / Univ Montpellier / CATIE; Pierre Couteron, UMR AMAP-IRD; Lilian Blanc, CIRAD / Univ Montpellier; Hélène Dessard, CIRAD / Univ Montpellier; Johan Oszwald, Université de Rennes 2; Renan Le Roux, CIRAD / Univ Montpellier; Guillaume Cornu, CIRAD / Univ Montpellier; Louis Reymondin, CIAT; LUCAS JOSE MAZZEI DE FREITAS, CPATU; Plinio Sist, CIRAD / Univ Montpellier; Peter Läderach, CIAT; Valéry Gond, CIRAD / Univ Montpellier. |
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Título: |
UAV-based canopy textures assess changes in forest structure from long-term degradation. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Ecological Indicators, v. 115, 106386, Aug. 2020. |
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DOI: |
https://doi.org/10.1016/j.ecolind.2020.106386 |
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Idioma: |
Inglês |
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Conteúdo: |
Degraded tropical forests dominate agricultural frontiers and their management is becoming an urgent priority. This calls for a better understanding of the different forest cover states and cost-efficient techniques to quantify the impact of degradation on forest structure. Canopy texture analyses based on Very High Spatial Resolution (VHSR) optical imagery provide proxies to assess forest structures but the mechanisms linking them with degradation have rarely been investigated. To address this gap, we used a lightweight Unmanned Aerial Vehicle (UAV) to map 739 ha of degraded forests and acquire both canopy VHSR images and height model. Thirty-three years of degradation history from Landsat archives allowed us to sample 40 plots in undisturbed, logged, over-logged and burned and regrowth forests in tropical forested landscapes (Paragominas, Pará, Brazil). Fourier (FOTO) and lacunarity textures were used to assess forest canopy structure and to build a typology linking degradation history and current states. Texture metrics capture canopy grain, heterogeneity and openness gradients and correlate with forest structure variability (R2 = 0.58). Similar structures share common degradation history and can be discriminated on the basis of canopy texture alone (accuracy = 55%). Over-logging causes a lowering in forest height, which brings homogeneous textures and of finer grain. We identified the major changes in structures due to fire following logging which changes heterogeneous and intermediate grain into coarse textures. Our findings highlight the potential of canopy texture metrics to characterize degraded forests and thus be used as indicators for forest management and degradation mitigation. Inexpensive and agile UAV open promising perspectives at the interface between field inventory and satellite characterization of forest structure using texture metrics. MenosDegraded tropical forests dominate agricultural frontiers and their management is becoming an urgent priority. This calls for a better understanding of the different forest cover states and cost-efficient techniques to quantify the impact of degradation on forest structure. Canopy texture analyses based on Very High Spatial Resolution (VHSR) optical imagery provide proxies to assess forest structures but the mechanisms linking them with degradation have rarely been investigated. To address this gap, we used a lightweight Unmanned Aerial Vehicle (UAV) to map 739 ha of degraded forests and acquire both canopy VHSR images and height model. Thirty-three years of degradation history from Landsat archives allowed us to sample 40 plots in undisturbed, logged, over-logged and burned and regrowth forests in tropical forested landscapes (Paragominas, Pará, Brazil). Fourier (FOTO) and lacunarity textures were used to assess forest canopy structure and to build a typology linking degradation history and current states. Texture metrics capture canopy grain, heterogeneity and openness gradients and correlate with forest structure variability (R2 = 0.58). Similar structures share common degradation history and can be discriminated on the basis of canopy texture alone (accuracy = 55%). Over-logging causes a lowering in forest height, which brings homogeneous textures and of finer grain. We identified the major changes in structures due to fire following logging which changes heterogeneous a... Mostrar Tudo |
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Palavras-Chave: |
Degradação florestal. |
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Thesagro: |
Degradação Ambiental; Floresta Tropical; Sensoriamento Remoto. |
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Thesaurus NAL: |
Remote sensing; Texture; Tropical forests. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02917naa a2200361 a 4500
001 2121789
005 2023-12-28
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.ecolind.2020.106386$2DOI
100 1 $aBOURGOIN, C.
245 $aUAV-based canopy textures assess changes in forest structure from long-term degradation.$h[electronic resource]
260 $c2020
520 $aDegraded tropical forests dominate agricultural frontiers and their management is becoming an urgent priority. This calls for a better understanding of the different forest cover states and cost-efficient techniques to quantify the impact of degradation on forest structure. Canopy texture analyses based on Very High Spatial Resolution (VHSR) optical imagery provide proxies to assess forest structures but the mechanisms linking them with degradation have rarely been investigated. To address this gap, we used a lightweight Unmanned Aerial Vehicle (UAV) to map 739 ha of degraded forests and acquire both canopy VHSR images and height model. Thirty-three years of degradation history from Landsat archives allowed us to sample 40 plots in undisturbed, logged, over-logged and burned and regrowth forests in tropical forested landscapes (Paragominas, Pará, Brazil). Fourier (FOTO) and lacunarity textures were used to assess forest canopy structure and to build a typology linking degradation history and current states. Texture metrics capture canopy grain, heterogeneity and openness gradients and correlate with forest structure variability (R2 = 0.58). Similar structures share common degradation history and can be discriminated on the basis of canopy texture alone (accuracy = 55%). Over-logging causes a lowering in forest height, which brings homogeneous textures and of finer grain. We identified the major changes in structures due to fire following logging which changes heterogeneous and intermediate grain into coarse textures. Our findings highlight the potential of canopy texture metrics to characterize degraded forests and thus be used as indicators for forest management and degradation mitigation. Inexpensive and agile UAV open promising perspectives at the interface between field inventory and satellite characterization of forest structure using texture metrics.
650 $aRemote sensing
650 $aTexture
650 $aTropical forests
650 $aDegradação Ambiental
650 $aFloresta Tropical
650 $aSensoriamento Remoto
653 $aDegradação florestal
700 1 $aBETBEDER, J.
700 1 $aCOUTERON, P.
700 1 $aBLANC, L.
700 1 $aDESSARD, H.
700 1 $aOSZWALD, J.
700 1 $aLE ROUX, R.
700 1 $aCORNU, G.
700 1 $aREYMONDIN, L.
700 1 $aFREITAS, L. J. M. de
700 1 $aSIST, P.
700 1 $aLÄDERACH, P.
700 1 $aGOND, V.
773 $tEcological Indicators$gv. 115, 106386, Aug. 2020.
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