干旱区生态环境知识资源中心(Arid): Reconstructing Holocene fire records using dune footslope deposits at the Cooloola Sand Mass, Australia

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DOI	10.1017/qua.2023.14
	Reconstructing Holocene fire records using dune footslope deposits at the Cooloola Sand Mass, Australia
	Patton, Nicholas R.; Shulmeister, James; Hua, Quan; Almond, Peter; Rittenour, Tammy M.; Hanson, Johanna M.; Grealy, Aloysius; Gilroy, Jack; Ellerton, Daniel
通讯作者	Patton, NR
来源期刊	QUATERNARY RESEARCH
ISSN	0033-5894
EISSN	1096-0287
出版年	2023
英文摘要	In this study, we assess charcoal records from eolian deposits within the Cooloola Sand Mass, a subtropical coastal dune system in eastern Australia, to determine whether they can be used as a proxy for Holocene fire history. We excavate four profiles in depositional wedges at the base of dune slipfaces (footslope deposits) and calculate charcoal concentrations for three size classes (180-250 mu m, 250-355 mu m, and 355 mu m-2 mm) at predetermined depth intervals. Age-depth models are constructed for each profile using radiocarbon measurements (n = 46) and basal optically stimulated luminescence ages (n = 4). All records appear intact with little evidence of postdepositional mixing as demonstrated by minimal age reversals and consistent trends in charcoal concentration and accumulation rates (CHAR) among size classes. Combining all four records, we generate a ca. 7 cal ka BP terrestrial fire history that depicts distinct peaks representing periods of increased local fire activity at <0.3, 1.1-0.4, 2.2-1.6, 3.4-2.6, and 6.7-5.3 cal ka BP. Our findings parallel regional records and highlight the utility of dune footslopes as ecological and sedimentary archives. As dune fields are much more common than wetlands and lakes in semiarid and arid areas, these deposits have the potential to increase the spatial resolution of fire records globally.
英文关键词	Paleofire Fire history Charcoal CHAR Hillslopes Eolian sediments Sediment transport Erosion Colluvial Landscape evolution
类型	Article ; Early Access
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000985180200001
WOS关键词	NORTH STRADBROKE ISLAND ; SEDIMENT-CHARCOAL RECORDS ; SOUTH-EAST QUEENSLAND ; COASTAL DUNES ; ENVIRONMENTAL-CHANGE ; FRASER ISLAND ; MILLENNIAL TIMESCALES ; HUMAN OCCUPATION ; POLLEN EVIDENCE ; CLIMATIC-CHANGE
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398196
推荐引用方式 GB/T 7714	Patton, Nicholas R.,Shulmeister, James,Hua, Quan,et al. Reconstructing Holocene fire records using dune footslope deposits at the Cooloola Sand Mass, Australia[J],2023.
APA	Patton, Nicholas R..,Shulmeister, James.,Hua, Quan.,Almond, Peter.,Rittenour, Tammy M..,...&Ellerton, Daniel.(2023).Reconstructing Holocene fire records using dune footslope deposits at the Cooloola Sand Mass, Australia.QUATERNARY RESEARCH.
MLA	Patton, Nicholas R.,et al."Reconstructing Holocene fire records using dune footslope deposits at the Cooloola Sand Mass, Australia".QUATERNARY RESEARCH (2023).