Percentage Dataset of Major Pollen in Chaona Lake Core on the Western Loess Plateau over the Past 2800 Years
GUO Chao1MA Yuzhen2LI Jinfeng1
1 College of Resource Environment and Tourism，Hubei University of Arts and Science，Xiangyang 441053，China2 Faculty of Geographical Science，Beijing Normal University，Beijing 100875，China
DOI:10.3974/geodb.2023.05.01.V1
Published:May 2023
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Key Words：
Pollen,Holocene,climate change,Loess Plateau
Abstract：
The Percentage Dataset of Major Pollen in Chaona Lake Core on the Western Loess Plateau over the Past 2800 Years was developed based on a series of 530-cm sediment cores which were recovered from the Chaona Lake on the western Loess Plateau using a piston corer equipment in the summer of 2016. A total of 318 samples were obtained from the lake core, and a minimum of 500 pollen grains were identified and counted for each sample using a light microscope. A robust chronology sequence was established by a multiple dating approach (210Pb and 137Cs, AMS 14C and varve counting). We have evaluated the validity of laminated lake sediments as annually varve by analyzing the seasonal pollen signal. High-resolution palynological analyses of the sediment can potentially provide new insight into vegetation change and climate dynamics of the western Loess Plateau over the past 2800 years. The results reveal a general forest decline and a dryer climate during the late Holocene. The dataset includes: (1) the geo-location of sediment core; (2) the percentage of the major pollen in Chaona Lake core over the past 2800 years. The dataset is archived in .shp and .xlsx formats, and consists of 9 files with data size of 237 KB (Compressed into one file with 74 KB). The analysis paper based on this dataset has been published in Science of the Total Environment, Vol. 827, 2022.
Foundation Item：
National Natural Science Foundation of China (42007405)
Data Citation：
GUO Chao, MA Yuzhen, LI Jinfeng. Percentage Dataset of Major Pollen in Chaona Lake Core on the Western Loess Plateau over the Past 2800 Years[J/DB/OL]. Digital Journal of Global Change Data Repository, 2023. https://doi.org/10.3974/geodb.2023.05.01.V1.
References：
[1] Moore, P. D., Webb, J. A., Collinson, M. E. Pollen Analysis, second edtion [M]. Blackwell Scientific Publications, Oxford, 1991: 163–182.
[2] Hu, C., Ma, Y., Meng, H., et al. Seasonal patterns of pollen and the use of pollen as a chronometer in the north-western Loess Plateau of China [J]. Journal of Quaternary Science, 2019, 34(4-5): 275-284.
[3] Dykoski, C. A., Edwards, R. L., Cheng, H., et al. A high-resolution, absolute-dated Holocene and deglacial Asian monsoon record from Dongge cave, China [J]. Earth Planet Science Letter, 2005, 233(1–2): 71-86.
[4] Mann, M. E., Zhang, Z. H., Rutherford, S., et al. Global signatures and dynamical origins of the Little Ice Age and medieval climate anomaly [J]. Science, 2009, 326(5957): 1256-1260.
[5] Wanner, H., Beer, J., Butikofer, J., et al. Mid- to late-Holocene climate change: An overview [J]. Quaternary Science Review, 2008, 27(19–20): 1791-1828.
Data Product:
| ID |
Data Name |
Data Size |
Operation |
| 1 |
PollenChaonaLakeCorePast2800y.rar |
73.50KB |
|