Traces of the 1997 Indonesian Wildfires in the Marine Environment From a Network of Coral delta C-13 Records

doi:10.1029/2020GL090383

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Traces of the 1997 Indonesian Wildfires in the Marine Environment From a Network of Coral delta C-13 Records
	Li, Xiaohua 2,3; Wang, Xiaowei 4; Liu, Chuanyu 4; Liu, Yi 5; Yu, Kefu 6; Sun, Weidong 1,2,3
刊名	GEOPHYSICAL RESEARCH LETTERS
	2020-11-28
卷号	47 期号:22 页码:10
ISSN号	0094-8276
DOI	10.1029/2020GL090383
通讯作者	Liu, Yi(liuyigeo@tju.edu.cn) ; Sun, Weidong(weidongsun@qdio.ac.cn)
英文摘要	Great efforts have been made to understand the impacts of the 1997 Indonesian wildfires on land ecology and human health, yet its influences on marine environments are poorly understood owing to sparse observations. Here we present weekly to monthly resolution coral delta C-13 records across the South China Sea in conjunction with a regional ocean general circulation model to study the effects of these cataclysmic wildfires on nearby oceans. Large and persistent negative delta C-13 excursions were found in corals from the interior South China Sea several months after the wildfires. This delay indicates that the C-13-depleted ash fallout was distributed by ocean currents rather than direct atmospheric transport, which is supported by the results of our numerical model. Thus, the impacts of tropical wildfires on marine ecology may last for 1 year and extend thousands of kilometers from the burning center. Plain Language Summary Tropical wildfires, intensified by extreme weather events and land use change, have continued to increase during this century, causing serious damage to the rainforests and local economies as well as human suffering and death. The threats of tropical wildfires to nearby oceans have been given little attention and are largely unknown because of limited observations. Here we use multiple coral records with weekly to monthly resolution from five sites near and around the South China Sea and a computer model to study the influences of the 1997 Indonesian wildfires on the ocean. We find a previously unrecognized ash fallout signal recorded in the corals in the interior of the South China Sea. Our model results indicate that the penetration of ash fallout into the South China Sea occurred through ocean currents rather than direct atmospheric transport. This study shows that the impacts of tropical wildfires on oceans may last for 1 year and can extend for thousands of kilometers from the source. We also show the potential for using coral records with computer modeling to identify and study the frequency and extent of past megafires.
资助项目	Chinese Academy of Sciences[XDA22050103] ; Chinese Academy of Sciences[XDB42010403] ; National Natural Science Foundation of China[41903003] ; National Natural Science Foundation of China[41922019] ; Open Foundation of the State Key Laboratory of Loess and Quaternary Geology[SKLLQG1613] ; China Postdoctoral Science Foundation[2019M652490]
WOS研究方向	Geology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000595819700058
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/169255]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Liu, Yi; Sun, Weidong
作者单位	1.Univ Chinese Acad Sci, Sch Marine Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Ctr Deep Sea Res, Ctr Ocean Megasci, Inst Oceanol, Qingdao, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 5.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin Key Lab Earth Crit Zone Sci & Sustainable, Tianjin, Peoples R China 6.Guangxi Univ, Coral Reef Res Ctr China, Sch Marine Sci, Guanpci Key Lab Study Coral Reefs South China Sea, Nanning, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiaohua,Wang, Xiaowei,Liu, Chuanyu,et al. Traces of the 1997 Indonesian Wildfires in the Marine Environment From a Network of Coral delta C-13 Records[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(22):10.
APA	Li, Xiaohua,Wang, Xiaowei,Liu, Chuanyu,Liu, Yi,Yu, Kefu,&Sun, Weidong.(2020).Traces of the 1997 Indonesian Wildfires in the Marine Environment From a Network of Coral delta C-13 Records.GEOPHYSICAL RESEARCH LETTERS,47(22),10.
MLA	Li, Xiaohua,et al."Traces of the 1997 Indonesian Wildfires in the Marine Environment From a Network of Coral delta C-13 Records".GEOPHYSICAL RESEARCH LETTERS 47.22(2020):10.