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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
22/04/2020 |
Data da última atualização: |
28/12/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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. |
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. |
Título: |
UAV-based canopy textures assess changes in forest structure from long-term degradation. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Ecological Indicators, v. 115, 106386, Aug. 2020. |
DOI: |
https://doi.org/10.1016/j.ecolind.2020.106386 |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Degradação florestal. |
Thesagro: |
Degradação Ambiental; Floresta Tropical; Sensoriamento Remoto. |
Thesaurus Nal: |
Remote sensing; Texture; Tropical forests. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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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Registros recuperados : 187 | |
41. | | GABI, A. M.; MCMANUS, C. M.; SILVA, A. V.; MARQUES, L. T.; ZANELA, M. B.; STUMPF, M. P.; FISCHER, V. Typology and physical?chemical characterization of bovine milk produced with different productions strategies. Agricultural Systems, v. 121, p. 130?134, 2013.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Clima Temperado. |
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44. | | FREITAS, D. R.; SILVA, A. V.; FERNANDES, P. C. C.; PEIXOTO, T. C. S.; LEITE, A. R. P. Estrutura familiar e geração de renda em assentamentos rurais que desenvolvem atividade pecuária em Tomé-Açu e Paragominas no nordeste e sudeste paraense. In: CONGRESSO BRASILEIRO DE ZOOTECNIA, 17.; CONGRESSO INTERNACIONAL DE ZOOTECNIA, 4.; REUNIÃO NACIONAL DE ENSINO DE ZOOTECNIA, 13.; FÓRUM DE ENTIDADES DE ZOOTECNIA, 30.; FÓRUM DE COORDENADORES DE CURSOS DE ZOOTECNIA DAS UNIVERSIDADES BRASILEIRAS, 3.; FÓRUM DE ESTUDANTES DE CURSOS DE ZOOTECNIA DAS UNIVERSIDADES BRASILEIRAS, 3., 2007, Londrina. A Zootecnia frente a novos desafios: anais. Londrina: UEL: ABZ, 2007. 1 CD-ROM.Tipo: Artigo em Anais de Congresso / Nota Técnica |
Biblioteca(s): Embrapa Amazônia Oriental. |
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45. | | CARVALHO, A. M. de; SOUZA, J. L.; SOUZA, S. F. de; MUNIZ, E. N.; SILVA, A. V. C. da. Estabelecimento e gestão do banco de germoplasma da Gliricidia sepium (BAG-Gliricidia) na Embrapa Tabuleiros Costeiros. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA TABULEIROS COSTEIROS, 12., 2023, Aracaju. Anais... Aracaju: Embrapa Tabuleiros Costeiros, 2023. Editores Técnicos: Viviane Talamini, Ana da Silva Ledo.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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49. | | SANTOS, G. M.; SILVA, A. V. C. da; OLIVEIRA, S. N.; YAGUIU, P.; CARNELOSSI, M. A. G.; MUNIZ, E. N. Injúria pelo frio em abóbora minimamente processada In: CONGRESSO BRASILEIRO DE OLERICULTURA, 47.; SIMPÓSIO BRASILEIRO SOBRE CUCURBITÁCIEAS, 4., 2007, Porto Seguro. Resgatando e valorizando as hortaliças subutilizadas. Porto Seguro: Associação Brasileira de Horticultura, 2007.Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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52. | | SILVA, A. V. de S.; CHAGAS, P. C.; MOURA, E. A. de; SAKASAKI, R. T.; CHAGAS, E. A. Qualidade de mudas de pinheira em função da adubação foliar. CONGRESSO BRASILEIRO DE FRUTICULTURA, 24., 2016, São Luis. Fruticultura: fruteiras nativas e sustentabilidade. São Luis, MA: SBF, 2016.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Roraima. |
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54. | | DANTAS, J. A. da S.; LOURENÇO JUNIOR, J. de B.; SILVA, A. V. da; MONTEIRO, E. M. M. Silagem de sorgo influenciando no desempenho de bovinos e búfalos. In: WORKSHOP SOBRE PRODUÇÃO DE SILAGEM NA AMAZÔNIA, 1., 2004, Belém, PA. Anais do... Belém, PA: UFRA, 2004. p. 101-117. Editado por Almir Vieira Silva e José de Brito Lourenço Júnior.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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57. | | LOURENÇO JUNIOR, J. de B.; DANTAS, J. A. da S.; SILVA, A. V. da; MONTEIRO, E. M. M. Potencial nutritivo da silagem de sorgo. In: WORKSHOP SOBRE PRODUÇÃO DE SILAGEM NA AMAZÔNIA, 1., 2004, Belém, PA. Anais do... Belém, PA: UFRA, 2004. p. 83-100. Editado por Almir Vieira Silva e José de Brito Lourenço Júnior.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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59. | | SPERA, S. T.; REATTO, A.; MARTINS, E. de S.; CORREIA, J. R.; BLOISE, G. de L. F.; SILVA, A. V. da; FARIAS, M. F. R. Aptidao agricola das terras da Bacia do Olaria, Distrito Federal. Planaltina: Embrapa Cerrados, 2001. 1 CD-ROM. (Embrapa Cerrados. Boletim de Pesquisa e Desenvolvimento, 15).Biblioteca(s): Embrapa Cerrados. |
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Registros recuperados : 187 | |
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