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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
27/10/2016 |
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Data da última atualização: |
27/10/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FIGUEIREDO, E. O.; OLIVEIRA, M. V. N. d'; BRAZ, E. M.; PAPA, D. de A.; FEARNSIDE, P. M. |
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Afiliação: |
EVANDRO ORFANO FIGUEIREDO, CPAF-Acre; MARCUS VINICIO NEVES D OLIVEIRA, CPAF-Acre; EVALDO MUNOZ BRAZ, CNPF; DANIEL DE ALMEIDA PAPA, CPAF-Acre; Philip Martin Fearnside, Instituto Nacional de Pesquisas da Amazônia/RedeClima. |
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Título: |
LIDAR-based estimation of bole biomass for precision management of an Amazonian forest: comparisons of ground-based and remotely sensed estimates. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Remote Sensing of Environment, Amsterdam, v. 187, p. 281-293, Dec. 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Based on airborne LIDAR data on canopymorphology and height ofAmazon forest trees, we developed allometric models to estimate dry biomass stored in the boles of dominant and co-dominant individuals and compared these results with those from equations based on traditional variables such as diameter at breast height (DBH). The database consisted of 142 trees of interest for logging in a forest under management for timber in Brazil's state of Acre. The trees chosen for studywere selected through proportional sampling by diameter class (ranging
from45 to 165 cm DBH) in order to properly represent the dominant and co-dominant tree populationswith diameters appropriate for harvest. Subsequent to LIDAR profiling of these trees, they were felled, subjected to a battery of dimensional measurements and sampled for wood-density determination. A set ofmodels was generated, followed by model selection and identity testing in order to compare groups of basicwood density (low, medium and high). The morphometric variables of the crown had high explanatory power for bole biomass independent of whether the allometric equations included DBH. When calculating bole biomass with equations that include basic wood density, the best estimate is obtained using variables for both DBH and crown morphology. To obtain an allometric equation that encompasses species in all three classes of basic density, one should either use only independent variables representing crown dimensions or complement these with variables for basic density (BD) and total height (Ht). The study demonstrates the feasibility of using ground-based measurements to calibrate biomass models that include only LIDAR-based variables, allowing much larger areas to be surveyed with reasonable accuracy. The present study is designed to produce data needed for forest management, but the
methods developed here can be adapted to studies aimed at reducing the uncertainty in biomass estimates of whole forests (not just harvestable trees) for use in quantifying carbon emissions from forest loss and degradation. MenosBased on airborne LIDAR data on canopymorphology and height ofAmazon forest trees, we developed allometric models to estimate dry biomass stored in the boles of dominant and co-dominant individuals and compared these results with those from equations based on traditional variables such as diameter at breast height (DBH). The database consisted of 142 trees of interest for logging in a forest under management for timber in Brazil's state of Acre. The trees chosen for studywere selected through proportional sampling by diameter class (ranging
from45 to 165 cm DBH) in order to properly represent the dominant and co-dominant tree populationswith diameters appropriate for harvest. Subsequent to LIDAR profiling of these trees, they were felled, subjected to a battery of dimensional measurements and sampled for wood-density determination. A set ofmodels was generated, followed by model selection and identity testing in order to compare groups of basicwood density (low, medium and high). The morphometric variables of the crown had high explanatory power for bole biomass independent of whether the allometric equations included DBH. When calculating bole biomass with equations that include basic wood density, the best estimate is obtained using variables for both DBH and crown morphology. To obtain an allometric equation that encompasses species in all three classes of basic density, one should either use only independent variables representing crown dimensions or complement these wit... Mostrar Tudo |
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Palavras-Chave: |
Biomassa seca; Biometria florestal; Manejo de precisão; Manejo florestal; Sistema de Informação Geográfica (SIG); Sistema de Posicionamento Geográfico (GPS). |
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Thesagro: |
Floresta Tropical. |
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Thesaurus Nal: |
Amazonia; lidar. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 03008naa a2200277 a 4500
001 2055467
005 2016-10-27
008 2016 bl --- 0-- u #d
100 1 $aFIGUEIREDO, E. O.
245 $aLIDAR-based estimation of bole biomass for precision management of an Amazonian forest$bcomparisons of ground-based and remotely sensed estimates.$h[electronic resource]
260 $c2016
520 $aBased on airborne LIDAR data on canopymorphology and height ofAmazon forest trees, we developed allometric models to estimate dry biomass stored in the boles of dominant and co-dominant individuals and compared these results with those from equations based on traditional variables such as diameter at breast height (DBH). The database consisted of 142 trees of interest for logging in a forest under management for timber in Brazil's state of Acre. The trees chosen for studywere selected through proportional sampling by diameter class (ranging from45 to 165 cm DBH) in order to properly represent the dominant and co-dominant tree populationswith diameters appropriate for harvest. Subsequent to LIDAR profiling of these trees, they were felled, subjected to a battery of dimensional measurements and sampled for wood-density determination. A set ofmodels was generated, followed by model selection and identity testing in order to compare groups of basicwood density (low, medium and high). The morphometric variables of the crown had high explanatory power for bole biomass independent of whether the allometric equations included DBH. When calculating bole biomass with equations that include basic wood density, the best estimate is obtained using variables for both DBH and crown morphology. To obtain an allometric equation that encompasses species in all three classes of basic density, one should either use only independent variables representing crown dimensions or complement these with variables for basic density (BD) and total height (Ht). The study demonstrates the feasibility of using ground-based measurements to calibrate biomass models that include only LIDAR-based variables, allowing much larger areas to be surveyed with reasonable accuracy. The present study is designed to produce data needed for forest management, but the methods developed here can be adapted to studies aimed at reducing the uncertainty in biomass estimates of whole forests (not just harvestable trees) for use in quantifying carbon emissions from forest loss and degradation.
650 $aAmazonia
650 $alidar
650 $aFloresta Tropical
653 $aBiomassa seca
653 $aBiometria florestal
653 $aManejo de precisão
653 $aManejo florestal
653 $aSistema de Informação Geográfica (SIG)
653 $aSistema de Posicionamento Geográfico (GPS)
700 1 $aOLIVEIRA, M. V. N. d'
700 1 $aBRAZ, E. M.
700 1 $aPAPA, D. de A.
700 1 $aFEARNSIDE, P. M.
773 $tRemote Sensing of Environment, Amsterdam$gv. 187, p. 281-293, Dec. 2016.
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Registro original: |
Embrapa Florestas (CNPF) |
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Biblioteca |
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| Registros recuperados : 262 | |
| 161. |  | OLIVEIRA, M.; MATTOS, P. P. de; BRAZ, E. M.; CANETTI, A.; BASSO, R.; ROSOT, N. Growth pattern of Qualea albiflora and Goupia glabra in Amazon forest, Mato Grosso State, Brazil. The International Forestry Review, v. 16, n. 5, p. 139, 2014. Edição dos abstracts do 24º IUFRO World Congress, 2014, Salt Lake City. Sustaining forests, sustaining people: the role of research.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 162. | | CANETTI, A.; MATTOS, P. P. de; BRAZ, E. M.; FIGUEIREDO FILHO, A. Growth pattern of timber species in an ecotone among amazon forest types. Pesquisa Florestal Brasileira, Colombo, v. 39, (nesp), e201902043, 2019. p. 375. Edição especial dos resumos do IUFRO World Congress, 25., 2019, Curitiba.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 164. | | SCHMITZ, R.; WATZLAWICK, L. F.; MATTOS, P. P. de; BRAZ, E. M. Growth and sustainable management of Cedrela fissilis Vell. in the Atlantic Forest in Southern Brazil. Pesquisa Florestal Brasileira, Colombo, v. 39, (nesp), e201902043, 2019. p. 293. Edição especial dos resumos do IUFRO World Congress, 25., 2019, Curitiba.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 168. | | SCHMITZ, R.; WATZLAWICK, L. F.; MATTOS, P. P. de; BRAZ, E. M. Phytosociological structure on edaphic aspects of an Atlantic Forest fragment in Southern Brazil. Pesquisa Florestal Brasileira, Colombo, v. 39, (nesp), e201902043, 2019. p. 293. Edição especial dos resumos do IUFRO World Congress, 25., 2019, Curitiba.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 172. | | BRAZ, E. M.; MATTOS, P. P. de; FIGUEIREDO, E. O.; RIBAS, L. A. Otimização da distribuição diamétrica remanescente da espécie Cedrela odorata no estado do Acre, visando o novo ciclo. In: SIMPÓSIO LATINO-AMERICANO SOBRE MANEJO FLORESTAL, 5., 2011, Santa Maria. Sustentabilidade florestal: [anais]. Santa Maria: UFSM, Programa de Pós-Graduação em Engenharia Florestal, 2011. p. 186-193.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Acre; Embrapa Florestas. |
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| 178. | | BRAZ, E. M.; BASSO, R.; ABREU, M.; MATTOS, P. P. de; OLIVERIA, M.; ZACHOW, R. Potential of natural forest production in Sinop County in the Amazonia region, Brazil. The International Forestry Review, v. 16, n. 5, p. 139, 2014. Edição dos abstracts do 24º IUFRO World Congress, 2014, Salt Lake City. Sustaining forests, sustaining people: the role of research.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 179. | | BRAZ, E. M.; THAINES, F.; MATTOS, P. P. de; GARRASTAZU, M. C.; CYSNEIROS, V.; MOURA, L. A. Áreas de ocorrência de espécies madeireiras no Mato Grosso. In: CONFERÊNCIA IUFRO 2023 AMÉRICA LATINA, 2023, Curitiba. Anais... Colombo: Embrapa Florestas, 2023. p. 119. (Embrapa Florestas. Eventos técnicos & científicos, 2).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 180. | | OLIVEIRA, M. F.; MATTOS, P. P. de; GARRASTAZU, M. C.; BRAZ, E. M.; FIGUEIREDO FILHO, A.; ROSOT, N. C. Análise da estrutura horizontal por densidade de Kernel como subsídio ao manejo florestal na Amazônia. Pesquisa Florestal Brasileira, Colombo, v. 41, e202002098, 2021. 14 p.| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 262 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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