Seeing the forest beyond the trees.
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1001136 |
Resumo: | In a recent paper (Mitchard et al. 2014, Global Ecology and Biogeography, 23, 935?946) a new map of forest biomass based on a geostatistical model of field data for the Amazon (and surrounding forests) was presented and contrasted with two earlier maps based on remotesensing data Saatchi et al. (2011; RS1) and Baccini et al. (2012; RS2). Mitchard et al. concluded that both the earlier remote-sensing based maps were incorrect because they did not conform to Mitchard et al. interpretation of the field-based results. In making their case, however, they misrepresented the fundamental nature of primary field and remote-sensing data and committed critical errors in their assumptions about the accuracy of research plots, the interpolation methodology and the statistical analysis. By ignoring the large uncertainty associated with ground estimates of biomass and the significant under-sampling and spatial bias of research plots, Mitchard et al. reported erroneous trends and artificial patterns of biomass over Amazonia. Because of these misrepresentations and methodological flaws, we find their critique of the satellite-derived maps to be invalid. |
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Seeing the forest beyond the trees.Spatial modellingTree heightAllometryBiomassLidarRemote sensingTropical forestsWood densityIn a recent paper (Mitchard et al. 2014, Global Ecology and Biogeography, 23, 935?946) a new map of forest biomass based on a geostatistical model of field data for the Amazon (and surrounding forests) was presented and contrasted with two earlier maps based on remotesensing data Saatchi et al. (2011; RS1) and Baccini et al. (2012; RS2). Mitchard et al. concluded that both the earlier remote-sensing based maps were incorrect because they did not conform to Mitchard et al. interpretation of the field-based results. In making their case, however, they misrepresented the fundamental nature of primary field and remote-sensing data and committed critical errors in their assumptions about the accuracy of research plots, the interpolation methodology and the statistical analysis. By ignoring the large uncertainty associated with ground estimates of biomass and the significant under-sampling and spatial bias of research plots, Mitchard et al. reported erroneous trends and artificial patterns of biomass over Amazonia. Because of these misrepresentations and methodological flaws, we find their critique of the satellite-derived maps to be invalid.Artigo publicado por Pesquisador Visitante da Embrapa Monitoramento por Satélite.SASSAN SAATCHI, NASA; JOSEPH MASCARO, American Association for the Advancement; LIANG XU, University of California; MICHAEL KELLER, Pesquisador visitante - CNPM/USDA; YAN YANG, University of California; PAUL DUFFY, Neptune and Company; FERNANDO ESPÍRITO-SANTO, NASA; ALESSANDRO BACCINI, The Woods Hole Research Center; JEFFERY CHAMBERS, University of California; DAVID SCHIMEL, NASA.SAATCHI, S.MASCARO, J.XU, L.KELLER, M.YANG, Y.DUFFY, P.ESPÍRITO-SANTO, F.BACCINI, A.CHAMBERS, J.SCHIMEL, D.2014-12-01T11:11:11Z2014-12-01T11:11:11Z2014-12-0120142014-12-03T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleGlobal Ecology and Biogeography, v. 23, n. 11, p. 1-5, nov. 2014.http://www.alice.cnptia.embrapa.br/alice/handle/doc/100113610.1111/geb.12256enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T00:30:30Zoai:www.alice.cnptia.embrapa.br:doc/1001136Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T00:30:30falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T00:30:30Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Seeing the forest beyond the trees. |
title |
Seeing the forest beyond the trees. |
spellingShingle |
Seeing the forest beyond the trees. SAATCHI, S. Spatial modelling Tree height Allometry Biomass Lidar Remote sensing Tropical forests Wood density |
title_short |
Seeing the forest beyond the trees. |
title_full |
Seeing the forest beyond the trees. |
title_fullStr |
Seeing the forest beyond the trees. |
title_full_unstemmed |
Seeing the forest beyond the trees. |
title_sort |
Seeing the forest beyond the trees. |
author |
SAATCHI, S. |
author_facet |
SAATCHI, S. MASCARO, J. XU, L. KELLER, M. YANG, Y. DUFFY, P. ESPÍRITO-SANTO, F. BACCINI, A. CHAMBERS, J. SCHIMEL, D. |
author_role |
author |
author2 |
MASCARO, J. XU, L. KELLER, M. YANG, Y. DUFFY, P. ESPÍRITO-SANTO, F. BACCINI, A. CHAMBERS, J. SCHIMEL, D. |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
SASSAN SAATCHI, NASA; JOSEPH MASCARO, American Association for the Advancement; LIANG XU, University of California; MICHAEL KELLER, Pesquisador visitante - CNPM/USDA; YAN YANG, University of California; PAUL DUFFY, Neptune and Company; FERNANDO ESPÍRITO-SANTO, NASA; ALESSANDRO BACCINI, The Woods Hole Research Center; JEFFERY CHAMBERS, University of California; DAVID SCHIMEL, NASA. |
dc.contributor.author.fl_str_mv |
SAATCHI, S. MASCARO, J. XU, L. KELLER, M. YANG, Y. DUFFY, P. ESPÍRITO-SANTO, F. BACCINI, A. CHAMBERS, J. SCHIMEL, D. |
dc.subject.por.fl_str_mv |
Spatial modelling Tree height Allometry Biomass Lidar Remote sensing Tropical forests Wood density |
topic |
Spatial modelling Tree height Allometry Biomass Lidar Remote sensing Tropical forests Wood density |
description |
In a recent paper (Mitchard et al. 2014, Global Ecology and Biogeography, 23, 935?946) a new map of forest biomass based on a geostatistical model of field data for the Amazon (and surrounding forests) was presented and contrasted with two earlier maps based on remotesensing data Saatchi et al. (2011; RS1) and Baccini et al. (2012; RS2). Mitchard et al. concluded that both the earlier remote-sensing based maps were incorrect because they did not conform to Mitchard et al. interpretation of the field-based results. In making their case, however, they misrepresented the fundamental nature of primary field and remote-sensing data and committed critical errors in their assumptions about the accuracy of research plots, the interpolation methodology and the statistical analysis. By ignoring the large uncertainty associated with ground estimates of biomass and the significant under-sampling and spatial bias of research plots, Mitchard et al. reported erroneous trends and artificial patterns of biomass over Amazonia. Because of these misrepresentations and methodological flaws, we find their critique of the satellite-derived maps to be invalid. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-01T11:11:11Z 2014-12-01T11:11:11Z 2014-12-01 2014 2014-12-03T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Global Ecology and Biogeography, v. 23, n. 11, p. 1-5, nov. 2014. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1001136 10.1111/geb.12256 |
identifier_str_mv |
Global Ecology and Biogeography, v. 23, n. 11, p. 1-5, nov. 2014. 10.1111/geb.12256 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1001136 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503397495275520 |