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Tree-ring Delta C-14 time series from 1948 to 2018 at a regional background site, China: Influences of atmospheric nuclear weapons tests and fossil fuel emissions
Niu, Zhenchuan1,2,3,4,5; Feng, Xue1,6,7; Zhou, Weijian1,2,3,4,5; Wang, Peng1,4,5; Liu, Yu1,2,3; Lu, Xuefeng1,4,5; Du, Hua1,4,5; Fu, Yunchong1,4,5; Li, Ming1,4,5; Mei, Ruochen8; Li, Qiang1,2; Cai, Qiufang1,2
Corresponding AuthorNiu, Zhenchuan(niuzc@ieecas.cn)
2021-02-01
Source PublicationATMOSPHERIC ENVIRONMENT
ISSN1352-2310
Volume246Pages:8
AbstractDelta C-14 values were measured from tree-rings (1948-2018) of Pinus tabuliformis Carr. that grew at the Shangdianzi (SDZ) regional background site in China. The objectives of this study are to establish a record of atmospheric Delta C-14, and to evaluate the influences of Chinese atmospheric nuclear tests and fossil carbon emissions on atmospheric Delta C-14 variations. The SDZ tree-ring Delta C-14 values are negative before 1956, and increase dramatically in response to global atmospheric nuclear tests, with a peak value of 844.0 +/- 4.2 parts per thousand in 1964. After the Partial Test Ban Treaty in 1963, the Delta C-14 values at SDZ decrease exponentially during 1964-2018. The half-life of the Delta C-14 decrease was protracted by approximately 2.7 yr during 1964-1984, due to Chinese atmospheric nuclear tests as well as Chinese forests as a carbon source during that period. Massive fossil carbon emissions in China lead to the SDZ decrease rate that is about 1.8 parts per thousand yr(-1) faster than that for the Northern Hemisphere background region during 2000-2010. SDZ Delta C-14 since 2000 show strong negative correlations with fossil carbon emissions from the Beijing-Tianjin-Hebei (BTH) region (r(2) = 0.954) and China (r(2) = 0.950), and a 1%o decrease in SDZ Delta C-14 indicates an increase of 2.3 +/- 0.2 Mt C and 23.3 +/- 1.7 Mt C fossil carbon emissions from the BTH region and China, respectively.
KeywordRadiocarbon Tree ring Reform and opening-up Fossil carbon emissions Half-life Beijing-tianjin-hebei region
DOI10.1016/j.atmosenv.2020.118156
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41773141] ; National Natural Science Foundation of China[41573136] ; National Natural Science Foundation of China[41730108] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23010302] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB 40000000] ; Youth Innovation Promotion Association CAS[2016360] ; National Research Program for Key Issues in Air Pollution Control[DQGG0105-02] ; Chinese Academy of Sciences[QYZDY-SSW-DQC001] ; Chinese Academy of Sciences[ZDBS-SSW-DQC001] ; Chinese Academy of Sciences[Y354011480] ; Chinese Academy of Sciences[SKLLQGPY1610] ; CAS Light of West China program[XAB2015A02] ; Natural Science Basic Research Program of Shaanxi[2019JCW-20] ; Natural Science Foundation of Shaanxi[2014JQ24018]
WOS Research AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
Funding OrganizationNational Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS ; National Research Program for Key Issues in Air Pollution Control ; Chinese Academy of Sciences ; CAS Light of West China program ; Natural Science Basic Research Program of Shaanxi ; Natural Science Foundation of Shaanxi
WOS SubjectEnvironmental Sciences ; Meteorology & Atmospheric Sciences
WOS IDWOS:000613551600001
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/16008
Collection加速器质谱中心
第四纪科学与全球变化卓越创新中心
Corresponding AuthorNiu, Zhenchuan
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China
2.CAS Ctr Excellence Quaternary Sci & Global Change, Beijing, Peoples R China
3.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Ocean Continental Climate & Environm, Qingdao, Peoples R China
4.Joint Xian AMS Ctr IEECAS, Shaanxi Prov Key Lab Accelerator Mass Spectrometr, Xian, Peoples R China
5.Xi An Jiao Tong Univ, Xian, Peoples R China
6.Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian, Peoples R China
7.Xian Inst Innovat Earth Environm Res, Xian, Peoples R China
8.Xian Polytech Univ, Sch Environm & Chem Engn, Xian, Peoples R China
Recommended Citation
GB/T 7714
Niu, Zhenchuan,Feng, Xue,Zhou, Weijian,et al. Tree-ring Delta C-14 time series from 1948 to 2018 at a regional background site, China: Influences of atmospheric nuclear weapons tests and fossil fuel emissions[J]. ATMOSPHERIC ENVIRONMENT,2021,246:8.
APA Niu, Zhenchuan.,Feng, Xue.,Zhou, Weijian.,Wang, Peng.,Liu, Yu.,...&Cai, Qiufang.(2021).Tree-ring Delta C-14 time series from 1948 to 2018 at a regional background site, China: Influences of atmospheric nuclear weapons tests and fossil fuel emissions.ATMOSPHERIC ENVIRONMENT,246,8.
MLA Niu, Zhenchuan,et al."Tree-ring Delta C-14 time series from 1948 to 2018 at a regional background site, China: Influences of atmospheric nuclear weapons tests and fossil fuel emissions".ATMOSPHERIC ENVIRONMENT 246(2021):8.
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