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Late onset of the Holocene rainfall maximum in northeastern China inferred from a pollen record from the sediments of Tianchi Crater Lake

Published online by Cambridge University Press:  08 March 2019

Xiaoyan Liu
Affiliation:
School of Earth and Space Sciences, University of Science and Technology of China, 230026 Hefei, China
Tao Zhan*
Affiliation:
The Second Hydrogeology and Engineering Geology Prospecting Institute of Heilongjiang Province, 150030 Harbin, China
Xinying Zhou*
Affiliation:
Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, 100044 Beijing, China
Haibin Wu
Affiliation:
Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, 100029 Beijing, China
Qin Li
Affiliation:
Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, 100029 Beijing, China
Chao Zhao
Affiliation:
Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, 100044 Beijing, China
Yansong Qiao
Affiliation:
Institute of Geomechanics, Chinese Academy of Geological Sciences, 100081 Beijing, China
Shiwei Jiang
Affiliation:
School of Earth and Space Sciences, University of Science and Technology of China, 230026 Hefei, China
Luyao Tu
Affiliation:
School of Earth and Space Sciences, University of Science and Technology of China, 230026 Hefei, China
Yongfa Ma
Affiliation:
The Second Hydrogeology and Engineering Geology Prospecting Institute of Heilongjiang Province, 150030 Harbin, China
Jun Zhang
Affiliation:
The Second Hydrogeology and Engineering Geology Prospecting Institute of Heilongjiang Province, 150030 Harbin, China
Xia Jiang
Affiliation:
Heilongjiang Bureau of Geology and Mineral Resources, 150036 Harbin, China
Benjun Lou
Affiliation:
The Second Hydrogeology and Engineering Geology Prospecting Institute of Heilongjiang Province, 150030 Harbin, China
Xiaolin Zhang*
Affiliation:
School of Earth and Space Sciences, University of Science and Technology of China, 230026 Hefei, China
Xin Zhou*
Affiliation:
School of Earth and Space Sciences, University of Science and Technology of China, 230026 Hefei, China
*
*Corresponding author e-mail address: xinzhou@ustc.edu.cn (Xin Zhou), hljzhantao@163.com (Tao Zhan), Zhouxinying@ivpp.ac.cn (Xinying Zhou) and zhxl2012@ustc.edu.cn (Xiaolin Zhang).
*Corresponding author e-mail address: xinzhou@ustc.edu.cn (Xin Zhou), hljzhantao@163.com (Tao Zhan), Zhouxinying@ivpp.ac.cn (Xinying Zhou) and zhxl2012@ustc.edu.cn (Xiaolin Zhang).
*Corresponding author e-mail address: xinzhou@ustc.edu.cn (Xin Zhou), hljzhantao@163.com (Tao Zhan), Zhouxinying@ivpp.ac.cn (Xinying Zhou) and zhxl2012@ustc.edu.cn (Xiaolin Zhang).
*Corresponding author e-mail address: xinzhou@ustc.edu.cn (Xin Zhou), hljzhantao@163.com (Tao Zhan), Zhouxinying@ivpp.ac.cn (Xinying Zhou) and zhxl2012@ustc.edu.cn (Xiaolin Zhang).

Abstract

The timing of the Holocene summer monsoon maximum (HSMM) in northeastern China has been much debated and more quantitative precipitation records are needed to resolve the issue. In the present study, Holocene precipitation and temperature changes were quantitatively reconstructed from a pollen record from the sediments of Tianchi Crater Lake in northeastern China using a plant functional type-modern analogue technique (PFT-MAT). The reconstructed precipitation record indicates a gradual increase during the early to mid-Holocene and a HSMM at ~5500–3100 cal yr BP, while the temperature record exhibits a divergent pattern with a marked rise in the early Holocene and a decline thereafter. The trend of reconstructed precipitation is consistent with that from other pollen records in northeastern China, confirming the relatively late occurrence of the HSMM in the region. However, differences in the onset of the HSMM within northeastern China are also evident. No single factor appears to be responsible for the late occurrence of the HSMM in northeastern China, pointing to a potentially complex forcing mechanism of regional rainfall in the East Asian monsoon region. We suggest that further studies are needed to understand the spatiotemporal pattern of the HSMM in the region.

Type
Research Article
Copyright
Copyright © University of Washington. Published by Cambridge University Press, 2019 

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