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Discussion papers
https://doi.org/10.5194/essd-2019-7
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2019-7
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: data description paper 28 May 2019

Submitted as: data description paper | 28 May 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Earth System Science Data (ESSD).

A taxonomically harmonized and temporally standardized fossil pollen dataset from Siberia covering the last 40 ka

Xianyong Cao1, Fang Tian1, Andrei Andreev1,2, Patricia M. Anderson3, Anatoly V. Lozhkin4, Elena Bezrukova5,6, Jian Ni7, Natalia Rudaya1,6, Astrid Stobbe8, Mareike Wieczorek1, and Ulrike Herzschuh1,9,10 Xianyong Cao et al.
  • 1Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Research Unit Potsdam, Telegrafenberg A43, Potsdam, 14473, Germany
  • 2Institute of Geology and Petroleum Technologies, Kazan Federal University, Kremlevskaya 18, Kazan, 420008, Russia
  • 3Earth and Space Sciences and Quaternary Research Center, University of Washington, Seattle, WA 98185, USA
  • 4North East Interdisciplinary Science Research Institute, Far East Branch Russian Academy of Sciences, Magadan, 685000, Russia
  • 5Vinogradov Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences, ul. Favorskogo 1a, Irkutsk, 664033, Russia
  • 6Institute of Archeology and Ethnography, Siberian Branch, Russian Academy of Sciences, pr. Akad. Lavrentieva 17, Novosibirsk, 630090, Russia
  • 7College of Chemistry and Life Sciences, Zhejiang Normal University, Yingbin Road 688, Jinhua, 321004, China
  • 8Goethe University, Norbert-Wollheim-Platz 1, Frankfurt am Main, 60629, Germany
  • 9Institute of Environmental Sciences and Geography, University of Potsdam, Karl-Liebknecht-Str. 24, Potsdam, 14476, Germany
  • 10Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Str. 24, Potsdam, 14476, Germany

Abstract. Pollen records from Siberia are mostly absent in global or Northern Hemisphere synthesis works. Here we present a taxonomically harmonized and temporally standardized pollen dataset that was synthesized using 173 palynological records from Siberia and adjacent areas (northeast Asia, 50°–180° E and 42°–75° N). Pollen data were taxonomically harmonized, that is the original 437 taxa were transformed to 106 combined pollen taxa. Age-depth models for all records were revised by applying a constant Bayesian age-depth modelling routine. The pollen dataset is available as count data and percentage data in a table format (taxa vs. samples) with age information for each sample. The dataset has relatively few sites covering the last glacial period between 40 and 11.5 cal ka BP (calibrated thousand years before present 1950 CE) particularly from the central and western part of the study area. In the Holocene period, the dataset has many sites from most of the area except the central part of Siberia. Of the 173 pollen records, 81 % of pollen counts were downloaded from open databases (GPD, EPD, Pangaea) and 10 % were contributions of the original data gatherers, while a few were digitized from publications. Most of the pollen records originate from peatlands (48 %) and lake sediments (33 %). Most of the records (83 %) have ≥ 3 dates allowing the establishment of reliable chronologies. The dataset can be used for various purposes including pollen data mapping (example maps for Larix at selected time-slices are shown) as well as quantitative climate and vegetation reconstructions. The datasets for pollen counts and pollen percentages are available at https://doi.pangaea.de/10.1594/PANGAEA.898616 (Cao et al., 2019).

Xianyong Cao et al.
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Xianyong Cao et al.
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A taxonomically harmonized and temporally standardized fossil pollen dataset from Siberia covering the last 40 ka X. Cao, F. Tian, A. A. Andreev, P. M. Anderson, A. V. Lozhkin, E. V. Bezrukova, J. Ni, N. A. Rudaya, A. Stobbe, M. Wieczorek, and U. Herzschuh https://doi.pangaea.de/10.1594/PANGAEA.898616

Xianyong Cao et al.
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Short summary
Pollen percentages in spectra cannot be utilized to indicate past plant abundance directly, because of the different pollen productivities among plants. In this paper, we applied relative pollen productivity estimates (PPEs) to calibrate plant abundances during the last 40 cal. ka BP using pollen counts from 203 pollen spectra in northern Asia. Results indicate the vegetation are generally stable during the Holocene, and climate change is the primary factor.
Pollen percentages in spectra cannot be utilized to indicate past plant abundance directly,...
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