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

andrej.andreev [ at ] awi.de


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 (northeastern Asia, 42–75∘ N, 50–180∘ E). Pollen data were taxonomically harmonized, i.e. the original 437 taxa were assigned 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 ka (calibrated thousands of years before 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, with the exception of 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 by 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.org/10.1594/PANGAEA.898616 (Cao et al., 2019a), also including the site information, data source, original publication, dating data, and the plant functional type for each pollen taxa.

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DOI 10.5194/essd-12-119-2020

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Cao, X. , Tian, F. , Andreev, A. , Anderson, P. M. , Lozhkin, A. V. , Bezrukova, E. , Ni, J. , Rudaya, N. , Stobbe, A. , Wieczorek, M. and Herzschuh, U. (2020): A taxonomically harmonized and temporally standardized fossil pollen dataset from Siberia covering the last 40 kyr , Earth System Science Data, 12 (1), pp. 119-135 . doi: 10.5194/essd-12-119-2020

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