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  2. 地质与地球物理研究所
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  4. 中国科学院新生代地质与环境重点实验室
A long-term investigation of the variation in leaf wax n-alkanes responding to climate on Dongling Mountain, north China

文献类型：期刊论文

作者Shi, Minrui1; Han, Jiamao2; Wang, Guoan1; Wang, Jia1,3; Han, Yaowen1; Cui, Linlin2
刊名QUATERNARY INTERNATIONAL
出版日期2021-08-10
卷号592页码:67-79
ISSN号1040-6182
关键词Total n-alkane concentration (Sigma alk) Average chain length (ACL) Carbon preference index (CPI) Living plants Climatic factors Long-term investigation
DOI10.1016/j.quaint.2021.04.020
英文摘要Long chain n-alkanes of leaf waxes are widely used in paleoclimatic reconstructions. The application of these proxies depends on profound understandings gained from studies of the relationship between climatic factors and long chain n-alkanes in living plants. However, a lot of uncertainties still exist in the relationship due to the interactions among climatic factors, geographical and topographical factors, and phylogeny. In addition, unrealistic or inaccurate climatic data also introduce errors. To evaluate the effect of climate with minimized interfering factors, we conducted long-term measurements of leaf wax n-alkanes of the plants growing on Dongling Mountain, north China from 2004 to 2019, where a meterological observatory is located. On the whole, total n-alkane concentration (Sigma alk) was positively correlated mean annual precipitation (MAP); average chain length (ACL) was negatively related to MAP; carbon preference index (CPI) had poor correlations with all climate factors. Compared with Sigma alk, ACL is a better indicator that reflects annual precipitation. The coefficient of ACL vs. MAP is 0.0015/mm. However, MAP accounted for only 40% of the variability in the year-averaged ACL of all plants together due to the significant interspecific differences in the response of leaf wax n-alkane distribution to climatic parameters; thus, ACL should be employed in parallel with other proxies to quantitatively reconstruct paleoprecipitation. We conducted a sample reconstruction of paleoprecipitation using ACL records preserved in the annually laminated sediments of Maar Lake Twintaung, Myanmar. The results of reconstruction using ACL are completely consistent with the results of reconstruction using carbon isotope ratios of n-alkanes, and are highly consistent with historical documents.
WOS关键词DELTA-D VALUES ; HYDROGEN-ISOTOPIC COMPOSITION ; AFRICAN VEGETATION ; SURFACE SOILS ; MODERN PLANTS ; WATER-LOSS ; CARBON ; DISTRIBUTIONS ; ABUNDANCE ; C-3
资助项目National Natural Science Foundation of China[41772171]
WOS研究方向Physical Geography ; Geology
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000660400300002
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/102070]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Wang, Guoan
作者单位1.China Agr Univ, Coll Resources & Environm Sci, Beijing Key Lab Farmland Soil Pollut Prevent Cont, Beijing 100193, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
3.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China
推荐引用方式
GB/T 7714		 Shi, Minrui,Han, Jiamao,Wang, Guoan,et al. A long-term investigation of the variation in leaf wax n-alkanes responding to climate on Dongling Mountain, north China[J]. QUATERNARY INTERNATIONAL,2021,592:67-79.
APA Shi, Minrui,Han, Jiamao,Wang, Guoan,Wang, Jia,Han, Yaowen,&Cui, Linlin.(2021).A long-term investigation of the variation in leaf wax n-alkanes responding to climate on Dongling Mountain, north China.QUATERNARY INTERNATIONAL,592,67-79.
MLA Shi, Minrui,et al."A long-term investigation of the variation in leaf wax n-alkanes responding to climate on Dongling Mountain, north China".QUATERNARY INTERNATIONAL 592(2021):67-79.

入库方式： OAI收割

来源：地质与地球物理研究所

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