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Rapid warming has resulted in more wildfires in northeastern Australia
Shi, Ge1,4; Yan, Hong1,2,3; Zhang, Wenchao5; Dodson, John1; Heijnis, Henk6; Burrows, Mark7
Corresponding AuthorYan, Hong(yanhong@ieecas.cn)
2021-06-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume771Pages:8
AbstractWildfires, or bushfires, are one of the most destructive natural disasters in Australia, which can cause many deaths of stock, native animals, sometimes humans, and huge impacts on infrastructure. Reconstructing past wildfires and exploring the links between wildfires and climate are essential for understanding the dynamics of wildfires and for predicting future risks. In this study, the frequency of wildfires in northeastern Australia over the past 25,000 years was reconstructed from the charcoal records preserved in peat and lake sediments. The results showed that the frequency of wildfires were relatively low during the cool last glacial period and the warm mid Holocene, indicating that the stable mean climate conditions, whether cool or warm, would not independently initiate increased wildfires in northeastern Australia. The most frequent wildfires occurred during the last deglaciation period, when Earth's climate warmed and the warming rate was the highest over the last 25,000 years, before recent anthropogenic warming. It suggested that the rapid global warming may greatly increase the likelihood of dangerous wildfires in northeastern Australia during the last deglaciation. The wildfires reactivated over the most recent 4000 years, coinciding with amplified climate variability and probably an expansion of human activity. The rapid warming of global climate during the last deglaciation period is an ideal analogue for current anthropogenic global warming. The comparison between fire count and temperature changes in Australia since 2003 also showed that the fire frequency in Australia in recent years is more closely correlated with the warming amplitude, rather than mean temperature. Our results implied that the wildfire risk in northeastern Australia may increase further under the expected accelerating global warming, if human management systems does not intrude. Wildfire modeling could benefit greatly by considering the relationship of fires with dimate variability rather than only with stable climate scenarios. (C) 2021 Elsevier B.V. All rights reserved.
KeywordNortheastern Australia Past 25,000 years Charcoal Wildfire Fast warming
DOI10.1016/j.scitotenv.2020.144888
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[42025304] ; National Natural Science Foundation of China (NSFC)[41877399] ; National Natural Science Foundation of China (NSFC)[41991250] ; National Key Research and Development Program of China[2019YFC1509100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB40000000] ; Light of West China Program of the Chinese Academy of Sciences
WOS Research AreaEnvironmental Sciences & Ecology
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Light of West China Program of the Chinese Academy of Sciences
WOS SubjectEnvironmental Sciences
WOS IDWOS:000627895900060
PublisherELSEVIER
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/16028
Collection古环境研究室
第四纪科学与全球变化卓越创新中心
Corresponding AuthorYan, Hong
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Ocean Univ China, Coll Marine Geosci, Key Lab Submarine Geosci & Prospecting Tech, Minist Educ, Qingdao 266100, Peoples R China
6.Australian Nucl Sci & Technol Org, Inst Environm Res, Lucas Heights, NSW, Australia
7.Australian Natl Univ, Archaeol & Nat Hist, Canberra, ACT, Australia
Recommended Citation
GB/T 7714
Shi, Ge,Yan, Hong,Zhang, Wenchao,et al. Rapid warming has resulted in more wildfires in northeastern Australia[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,771:8.
APA Shi, Ge,Yan, Hong,Zhang, Wenchao,Dodson, John,Heijnis, Henk,&Burrows, Mark.(2021).Rapid warming has resulted in more wildfires in northeastern Australia.SCIENCE OF THE TOTAL ENVIRONMENT,771,8.
MLA Shi, Ge,et al."Rapid warming has resulted in more wildfires in northeastern Australia".SCIENCE OF THE TOTAL ENVIRONMENT 771(2021):8.
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