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1. Identity statement
Reference TypeJournal Article
Sitemtc-m21c.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34R/443H4TB
Repositorysid.inpe.br/mtc-m21c/2021/01.25.19.27   (restricted access)
Last Update2021:01.25.19.27.27 (UTC) simone
Metadata Repositorysid.inpe.br/mtc-m21c/2021/01.25.19.27.27
Metadata Last Update2022:04.04.04.50.19 (UTC) administrator
DOI10.1038/s41598-020-80809-w
ISSN2045-2322
Citation KeySilvaWGSPGPOA:2021:LaVaDy
TitleLarge-scale variations in the dynamics of Amazon forest canopy gaps from airborne lidar data and opportunities for tree mortality estimates
Year2021
MonthDec.
Access Date2024, May 02
Type of Workjournal article
Secondary TypePRE PI
Number of Files1
Size4952 KiB
2. Context
Author1 Silva, Ricardo Dal'Agnol da
2 Wagner, Fabien Hubert
3 Galvão, Lênio Soares
4 Streher, Annia Susin
5 Phillips, Oliver L.
6 Gloor, Emanuel
7 Pugh, Thomas A. M.
8 Ometto, Jean Pierre Henry Balbaud
9 Aragão, Luiz Eduardo Oliveira e Cruz de
Resume Identifier1
2
3 8JMKD3MGP5W/3C9JHLF
Group1 DIOTG-CGCT-INPE-MCTI-GOV-BR
2 DIOTG-CGCT-INPE-MCTI-GOV-BR
3 DIOTG-CGCT-INPE-MCTI-GOV-BR
4 DIOTG-CGCT-INPE-MCTI-GOV-BR
5
6
7
8 DIPE3-COGPI-INPE-MCTI-GOV-BR
9 DIOTG-CGCT-INPE-MCTI-GOV-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
4 Instituto Nacional de Pesquisas Espaciais (INPE)
5 University of Leeds
6 University of Leeds
7 University of Birmingham
8 Instituto Nacional de Pesquisas Espaciais (INPE)
9 Instituto Nacional de Pesquisas Espaciais (INPE)
Author e-Mail Address1 ricds@hotmail.com
2 fabien.wagner@inpe.br
3 lenio.galvao@inpe.br
4
5
6
7
8 jean.ometto@inpe.br
9 luiz.aragao@inpe.br
JournalScientific Reports
Volume11
Number1
Pagese1388
Secondary MarkB2_BIODIVERSIDADE B3_ODONTOLOGIA B3_LETRAS_/_LINGUÍSTICA C_CIÊNCIAS_BIOLÓGICAS_III C_BIOTECNOLOGIA C_ASTRONOMIA_/_FÍSICA
History (UTC)2021-01-25 19:28:59 :: simone -> administrator :: 2021
2021-06-22 19:11:12 :: administrator -> simone :: 2021
2021-06-22 20:23:18 :: simone -> administrator :: 2021
2021-07-02 02:27:08 :: administrator -> simone :: 2021
2021-12-16 19:18:20 :: simone -> administrator :: 2021
2022-04-04 04:50:19 :: administrator -> simone :: 2021
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
AbstractWe report large-scale estimates of Amazonian gap dynamics using a novel approach with large datasets of airborne light detection and ranging (lidar), including five multi-temporal and 610 single-date lidar datasets. Specifically, we (1) compared the fixed height and relative height methods for gap delineation and established a relationship between static and dynamic gaps (newly created gaps); (2) explored potential environmental/climate drivers explaining gap occurrence using generalized linear models; and (3) cross-related our findings to mortality estimates from 181 field plots. Our findings suggest that static gaps are significantly correlated to dynamic gaps and can inform about structural changes in the forest canopy. Moreover, the relative height outperformed the fixed height method for gap delineation. Well-defined and consistent spatial patterns of dynamic gaps were found over the Amazon, while also revealing the dynamics of areas never sampled in the field. The predominant pattern indicates 2035% higher gap dynamics at the west and southeast than at the central-east and north. These estimates were notably consistent with field mortality patterns, but they showed 60% lower magnitude likely due to the predominant detection of the broken/uprooted mode of death. While topographic predictors did not explain gap occurrence, the water deficit, soil fertility, forest flooding and degradation were key drivers of gap variability at the regional scale. These findings highlight the importance of lidar in providing opportunities for large-scale gap dynamics and tree mortality monitoring over the Amazon.
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4. Conditions of access and use
Languageen
Target Filedalagnol_large.pdf
User Groupsimone
Reader Groupadministrator
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Visibilityshown
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
5. Allied materials
Next Higher Units8JMKD3MGPCW/46KUATE
8JMKD3MGPCW/46L2FGP
Citing Item Listsid.inpe.br/bibdigital/2022/04.04.04.47 2
sid.inpe.br/mtc-m21/2012/07.13.14.53.28 1
DisseminationWEBSCI; PORTALCAPES; SCOPUS.
Host Collectionurlib.net/www/2017/11.22.19.04
6. Notes
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