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Macroscopic fossil charcoals as proxy of a local fire linked to conifer-rich forest from the late Pliocene of northwestern Yunnan, Southwest China
Huang,Yong-Jiang; Shen,Hui; Jia,Lin-Bo; Li,Shu-Feng; Su,Tao; Nam,Gi-Soo; Zhu,Hai; Zhou,Zhe-Kun
2021
Source PublicationPALAEOWORLD
ISSN1871-174X
Volume30Issue:3Pages:551-561
AbstractYunnan at southeastern margin of the Tibetan Plateau is subject to frequent wildfires each year, while its wildfire history remains poorly known due to the lack of studies on palaeofire in the region. In this study, we report a local fire from the late Pliocene of northwestern Yunnan, based on macroscopic fossil charcoals recovered from the Sanying Formation of Lanping Basin. These sedimentary charcoals exhibit silky lustre in the light and complete homogenization of adjacent xylem cell walls, characterizing the result of incomplete combustion during the late Pliocene. Our preliminary taxonomic analysis indicates that the studied charcoals are dominated by conifers, suggesting higher importance of coniferous elements as fuel sources in the fire. We assert a conifer-rich source forest for the fire event by also considering plant remains of other types, i.e., needle fragments, small shoots, fruits and seeds, from the same sampling layer. Since conifers are commonly prone to wildfires, this type of forest might have a close link with the fire by serving highly flammable fuels. We consider that the regionally seasonal drought during the late Pliocene might also take responsibility, because in the dry season forest fuels such as ground litter would become ignitable after intensive desiccation. As modern wildfires in northwestern Yunnan are closely coupled with conifer-dominant forests and seasonally dry climate, we assume this correlation might have been established by the late Pliocene. Our study may bring attention to potential roles of wildfire on local and/or regional flora and vegetation evolution in this region. (c) 2020 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved.
KeywordNeogene palaeofire palaeovegetation precipitation seasonality Sanying Formation Tibetan Plateau ATMOSPHERIC OXYGEN LEVELS MONSOONAL CLIMATE SP-NOV VEGETATION HISTORY RECORD BASIN WOOD RECONSTRUCTION ARIDIFICATION
DOI10.1016/j.palwor.2020.07.005
WOS IDWOS:000689524200006
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/73616
Collection中国科学院昆明植物研究所
Affiliation1.Chinese Acad Sci, Kunming Inst Bot, CAS Key Lab Plant Biodivers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
3.Univ Chinese Acad Sci, Sch Humanities, Beijing 100049, Peoples R China
4.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China
5.Gongju Natl Univ Educ, 27 Woongjin Ro, Gongju Si 32553, Chungcheongnam, South Korea
6.Shangrao Normal Univ, Coll Life Sci, Shangrao 334001, Jiangxi, Peoples R China
Recommended Citation
GB/T 7714
Huang,Yong-Jiang,Shen,Hui,Jia,Lin-Bo,et al. Macroscopic fossil charcoals as proxy of a local fire linked to conifer-rich forest from the late Pliocene of northwestern Yunnan, Southwest China[J]. PALAEOWORLD,2021,30(3):551-561.
APA Huang,Yong-Jiang.,Shen,Hui.,Jia,Lin-Bo.,Li,Shu-Feng.,Su,Tao.,...&Zhou,Zhe-Kun.(2021).Macroscopic fossil charcoals as proxy of a local fire linked to conifer-rich forest from the late Pliocene of northwestern Yunnan, Southwest China.PALAEOWORLD,30(3),551-561.
MLA Huang,Yong-Jiang,et al."Macroscopic fossil charcoals as proxy of a local fire linked to conifer-rich forest from the late Pliocene of northwestern Yunnan, Southwest China".PALAEOWORLD 30.3(2021):551-561.
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