Deforestation as the Prominent Driver of the Intensifying Wildfire in Cambodia, Revealed through Geospatial Analysis

Cambodia has the most fires per area in Southeast Asia, with fire activity have significantly increased since the early 2000s. Wildfire occurrences are multi-factorial in nature, and isolating the relative contribution of each driver remains a challenge. In this study, we quantify the relative impor...

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Detalhes bibliográficos
Autores: Sim, Min-Sung, Wee, Shi-Jun, Alcantara, Enner [UNESP], Park, Edward
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:Brasil
Recursos:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/305236
Acesso em linha:http://dx.doi.org/10.3390/rs15133388
https://hdl.handle.net/11449/305236
Access Level:acceso abierto
Palavra-chave:Cambodia
deforestation
geographically weighted regression
wildfire
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spelling Deforestation as the Prominent Driver of the Intensifying Wildfire in Cambodia, Revealed through Geospatial AnalysisCambodiadeforestationgeographically weighted regressionwildfireCambodia has the most fires per area in Southeast Asia, with fire activity have significantly increased since the early 2000s. Wildfire occurrences are multi-factorial in nature, and isolating the relative contribution of each driver remains a challenge. In this study, we quantify the relative importance of each driver of fire by analyzing annual spatial regression models of fire occurrence across Cambodia from 2003 to 2020. Our models demonstrated satisfactory performance, explaining 69 to 81% of the variance in fire occurrence. We found that deforestation was consistently the dominant driver of fire across 48 to 70% of the country throughout the study period. Although the influence of low precipitation on fires has increased in 2019 and 2020, the period is not long enough to establish any significant trends. During the study period, wind speed, elevation, and soil moisture had a slight influence of 6–20% without any clear trend, indicating that deforestation continues to be the main driver of fire. Our study improves the current understanding of the drivers of biomass fires across Cambodia, and the methodological framework developed here (quantitative decoupling of the drivers) has strong potential to be applied to other fire-prone areas around the world.Ministry of Education - SingaporeDepartment of Automotive Engineering Yeungnam UniversityAsian School of the Environment Nanyang Technological UniversityInstitute of Science and Technology São Paulo State UniversityEarth Observatory of Singapore National Institute of Education Nanyang Technological UniversityInstitute of Science and Technology São Paulo State UniversityMinistry of Education - Singapore: #2021-T1-001-056Ministry of Education - Singapore: #MOE-T2EP402A20-0001Ministry of Education - Singapore: #MOE-T2EP50222-0025Ministry of Education - Singapore: #RG142/22 to EPYeungnam UniversityNanyang Technological UniversityUniversidade Estadual Paulista (UNESP)2025-04-29T20:02:34Z2023-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3390/rs15133388Remote Sensing, v. 15, n. 13, 2023.2072-4292https://hdl.handle.net/11449/30523610.3390/rs151333882-s2.0-85164935412Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRemote Sensinginfo:eu-repo/semantics/openAccessSim, Min-SungWee, Shi-JunAlcantara, Enner [UNESP]Park, Edward2025-04-30T14:32:32Zoai:repositorio.unesp.br:11449/305236Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462025-04-30T14:32:32Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Deforestation as the Prominent Driver of the Intensifying Wildfire in Cambodia, Revealed through Geospatial Analysis
title Deforestation as the Prominent Driver of the Intensifying Wildfire in Cambodia, Revealed through Geospatial Analysis
spellingShingle Deforestation as the Prominent Driver of the Intensifying Wildfire in Cambodia, Revealed through Geospatial Analysis
Sim, Min-Sung
Cambodia
deforestation
geographically weighted regression
wildfire
title_short Deforestation as the Prominent Driver of the Intensifying Wildfire in Cambodia, Revealed through Geospatial Analysis
title_full Deforestation as the Prominent Driver of the Intensifying Wildfire in Cambodia, Revealed through Geospatial Analysis
title_fullStr Deforestation as the Prominent Driver of the Intensifying Wildfire in Cambodia, Revealed through Geospatial Analysis
title_full_unstemmed Deforestation as the Prominent Driver of the Intensifying Wildfire in Cambodia, Revealed through Geospatial Analysis
title_sort Deforestation as the Prominent Driver of the Intensifying Wildfire in Cambodia, Revealed through Geospatial Analysis
dc.creator.none.fl_str_mv Sim, Min-Sung
Wee, Shi-Jun
Alcantara, Enner [UNESP]
Park, Edward
author Sim, Min-Sung
author_facet Sim, Min-Sung
Wee, Shi-Jun
Alcantara, Enner [UNESP]
Park, Edward
author_role author
author2 Wee, Shi-Jun
Alcantara, Enner [UNESP]
Park, Edward
author2_role author
author
author
dc.contributor.none.fl_str_mv Yeungnam University
Nanyang Technological University
Universidade Estadual Paulista (UNESP)
dc.subject.por.fl_str_mv Cambodia
deforestation
geographically weighted regression
wildfire
topic Cambodia
deforestation
geographically weighted regression
wildfire
description Cambodia has the most fires per area in Southeast Asia, with fire activity have significantly increased since the early 2000s. Wildfire occurrences are multi-factorial in nature, and isolating the relative contribution of each driver remains a challenge. In this study, we quantify the relative importance of each driver of fire by analyzing annual spatial regression models of fire occurrence across Cambodia from 2003 to 2020. Our models demonstrated satisfactory performance, explaining 69 to 81% of the variance in fire occurrence. We found that deforestation was consistently the dominant driver of fire across 48 to 70% of the country throughout the study period. Although the influence of low precipitation on fires has increased in 2019 and 2020, the period is not long enough to establish any significant trends. During the study period, wind speed, elevation, and soil moisture had a slight influence of 6–20% without any clear trend, indicating that deforestation continues to be the main driver of fire. Our study improves the current understanding of the drivers of biomass fires across Cambodia, and the methodological framework developed here (quantitative decoupling of the drivers) has strong potential to be applied to other fire-prone areas around the world.
publishDate 2023
dc.date.none.fl_str_mv 2023-07-01
2025-04-29T20:02:34Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.3390/rs15133388
Remote Sensing, v. 15, n. 13, 2023.
2072-4292
https://hdl.handle.net/11449/305236
10.3390/rs15133388
2-s2.0-85164935412
url http://dx.doi.org/10.3390/rs15133388
https://hdl.handle.net/11449/305236
identifier_str_mv Remote Sensing, v. 15, n. 13, 2023.
2072-4292
10.3390/rs15133388
2-s2.0-85164935412
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Remote Sensing
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv repositoriounesp@unesp.br
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