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Application of a Diatom Transfer Function to Quantitative Paleoclimatic Reconstruction - A Case Study of Yunlong Lake, Southwest China

文献类型：期刊论文

作者Zou, Yafei1; Wang, Luo2; He, Haibo1; Liu, Guangxin1; Zhang, Jiaoyang3; Yan, Yao3; Gu, Zhaoyan2; Zheng, Hongbo1,4
刊名FRONTIERS IN EARTH SCIENCE
出版日期2021-06-23
卷号9页码:11
关键词diatoms transfer function quantitative reconstruction climate change Yunlong Lake
DOI10.3389/feart.2021.700194
英文摘要Although diatom records from lake sediments have been used for quantitative paleoclimatic reconstruction, their validity and sensitivity have rarely been tested rigorously. At Yunlong Lake, an alpine lake in Southwest China, we studied the seasonal succession of diatom assemblages to produce a mean surface water temperature (MSWT) transfer function. In addition, based on the spatial distribution of surface diatom assemblages with water depth, we produced a diatom-water depth (WD) transfer function. Combined with the analysis of diatom assemblages in a sediment core (YL2013-A), changes in surface water temperature and water level over the last similar to 100 years were quantitatively reconstructed using the diatom-based transfer functions. Comparison with records of regional meteorology and reservoir water capacity revealed that the diatom-based lake water level reconstruction is a sensitive indicator of short-term fluctuations in precipitation, and it also reflects a long-term stepwise rise in water level caused by the impounding and large-scale extension of the reservoir. In addition, the diatom-inferred MSWT is consistent with the changes in air temperature prior to large-scale human disturbance of the site. However, after the extension of the reservoir, although the regional air temperature continued to increase, the water temperature decreased substantially. This suggests that the large increase in lake water volume in the short term led to a decrease in the average water temperature, which in turn led to the occurrence of a diatom bloom in the cold season. The results demonstrate that diatom transfer functions based on modern observations of the same lake has a high environmental sensitivity and can be used for the quantitative reconstruction of regional climate change. Overall, our findings provide a foundation for the use of lake diatom records for quantitative paleoclimatic reconstruction on various timescales.
WOS关键词WATER-DEPTH ; INFERENCE MODELS ; BOREAL LAKES ; VARIABILITY ; ONTARIO ; ASSEMBLAGES ; DIVERSITY
资助项目National Natural Science Foundation of China[42001077] ; National Natural Science Foundation of China[41772379] ; National Natural Science Foundation of China[41991323] ; China Postdoctoral Science Foundation[2021T140582] ; National Key R&D Program of China[2017YFA0603400]
WOS研究方向Geology
语种英语
WOS记录号WOS:000670067900001
出版者FRONTIERS MEDIA SA
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/101994]  
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Zou, Yafei
作者单位1.Yunnan Univ, Yunnan Key Lab Earth Syst Sci, Kunming, Yunnan, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
3.China Univ Geosci, Sch Geosci & Resources, Beijing, Peoples R China
4.Univ Queensland, Sch Earth & Environm Sci, Brisbane, Qld, Australia
推荐引用方式
GB/T 7714		 Zou, Yafei,Wang, Luo,He, Haibo,et al. Application of a Diatom Transfer Function to Quantitative Paleoclimatic Reconstruction - A Case Study of Yunlong Lake, Southwest China[J]. FRONTIERS IN EARTH SCIENCE,2021,9:11.
APA Zou, Yafei.,Wang, Luo.,He, Haibo.,Liu, Guangxin.,Zhang, Jiaoyang.,...&Zheng, Hongbo.(2021).Application of a Diatom Transfer Function to Quantitative Paleoclimatic Reconstruction - A Case Study of Yunlong Lake, Southwest China.FRONTIERS IN EARTH SCIENCE,9,11.
MLA Zou, Yafei,et al."Application of a Diatom Transfer Function to Quantitative Paleoclimatic Reconstruction - A Case Study of Yunlong Lake, Southwest China".FRONTIERS IN EARTH SCIENCE 9(2021):11.

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来源：地质与地球物理研究所

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