Climatic and human impact on the environment: Insight from the tetraether lipid temperature reconstruction in the Beibu Gulf, China
Climatic and human impact on the environment: Insight from the tetraether lipid temperature reconstruction in the Beibu Gulf, China
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气候和人类对环境的影响:中国北部湾四醚脂温度重建的见解
DOI:
10.1016/j.quaint.2019.12.004
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发表时间:
2020-01
影响因子:
2.2
通讯作者:
Ping'an Peng
中科院分区:
文献类型:
--
作者:
Weisen Liao;Jianfang Hu;Haoda Zhou;Ping'an Peng
Organic proxies have been widely used to reconstruct temperature and terrestrial input variation at the interface between land and sea. However, the impact of human activities on these proxies has been little constrained, which might cause the misinterpretation of the sediment profile. In order to study the climatic and human impact on the environment, proxies in coastal regions, glycerol dialkyl glycerol tetraethers (GDGTs) in a sediment core spanning 115 years was analyzed from Beibu Gulf, China. The results indicate that isoprenoid GDGTs in the Beibu Gulf were mainly derived from Thaumarchaeota and the branched GDGTs originated mainly from terrestrial soil bacteria. The TEX86index was applied to reconstruct the temporal SST variation. The results show that variation of TEX86-derived SST is controlled mainly by East Asian Monsoon system and partly by ENSO events. The methylation index of branched tetraethers or the cyclization index of branched tetraethers (MBT/CBT) derived mean annual air temperature (MAAT) agreed with MAAT record at the Qinzhou Station before 1982 AD. However, the population growth and economic development after 1982 AD caused the reduction of terrestrial organic matter input and increase of nutrient, leading to the thriving of Thaumarchaeota and increasing ofin situbranched GDGTs proportion, which created the scatter of the MBT/CBT-reconstructed MAAT after 1982 AD. Therefore, human influence on GDGT proxies can be constrained in this way to avoid misinterpretation of paleoclimate and paleoenvironment records.
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影响因子:
5
作者:
Kim, Jung-Hyun;van der Meer, Jaap;Damste, Jaap S. Sinninghe
通讯作者:
Damste, Jaap S. Sinninghe
影响因子:
3
作者:
Liao Weisen;Hu Jianfang;Zhou Haoda;Hu Jianhua;Peng Ping'an;Deng Wenfeng
通讯作者:
Deng Wenfeng
影响因子:
3
作者:
Xian-wei Meng;Peng Xia;Zhen Li;Dezhen Meng
通讯作者:
Xian-wei Meng;Peng Xia;Zhen Li;Dezhen Meng
影响因子:
3
作者:
Powers, Lindsay;Werne, Josef P.;Schouten, Stefan
通讯作者:
Schouten, Stefan
DOI:
10.1016/j.gsf.2012.10.002
发表时间:
2013-03
期刊:
地学前缘(英文版)
影响因子:
--
作者:
Huangmin Ge;Chuanlun L. Zhang;Chuanlun L. Zhang;Hongyue Dang;Hongyue Dang;Chun Zhu;Chun Zhu;Guodong Jia;Guodong Jia
通讯作者:
Guodong Jia