Citation:

PANGAEA.993513 (dataset in review)

Name: Pollen Data from the Gushantun Peat Bog During the Younger Dryas, Northeast China
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Gushantun; Northeast China; Peat; Pollen; YD

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Abstract:

This dataset presents high resolution palynological records from the Gushantun peat bog (42°18'22.1 N, 126°16' 57.7 E, 506m) in Northeast China. Peat samples of 1 cm3 were subsampled at 1 cm intervals for pollen analysis. Fossil pollen was concentrated using a standard acid–alkali digestion procedure. Each sample was treated with 10% hydrochloric acid (HCl) to remove carbonates, followed by 10% sodium hydroxide (NaOH) to eliminate humic acids. Silicates were dissolved using hydrofluoric acid (HF), and concentrated HCl was applied to remove fluoride byproducts. The residues were then sieved through a 10 µm mesh with ultrasonic agitation to isolate pollen grains. Pollen were identified and counted using an Olympus BX53 microscope at ×400 magnification. The dataset spans the Younger Dryas and provides pollen percentages along with corresponding depths and ages, achieving an average temporal resolution of approximately 20 years.

Keyword(s):

Gushantun; Northeast China; Peat; Pollen; YD

Supplement to:

Li, Nannan; Li, Dehui; Liu, Baojian; Santos, Ricardo N; Ladd, S Nemiah; Nelson, Daniel B; Sack, Dorothy; Lloren, Ronald; Brunner, Irene; Orme, Lisa C; Gao, Guizai; Jie, Dongmei; Dubois, Nathalie (in prep.): Proxy evidence challenges a humid Younger Dryas in Northeast China.

Funding:

National Natural Science Foundation of China (NSFC), grant/award no. 42507604

Coverage:

Latitude: 42.306139 * Longitude: 126.282694

Date/Time Start: 2009-08-15T08:00:00 * Date/Time End: 2009-08-15T08:00:00

Minimum DEPTH, sediment/rock: 6.505 m * Maximum DEPTH, sediment/rock: 7.485 m

Event(s):

GST-2 (Gushantun peat bog) * Latitude: 42.306139 * Longitude: 126.282694 * Date/Time: 2009-08-15T08:00:00 * Elevation: 506.0 m * Location: Northeast China * Method/Device: Peat corer, Eijkelkamp, D-section

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Li, Nannan		Geocode
2	AGE	Age	ka BP	Li, Nannan		Geocode
3	Picea	Picea	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
4	Abies	Abies	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
5	Pinus	Pinus	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
6	Larix	Lar	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
7	Betula	Betula	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
8	Corylus	Corylus	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
9	Carpinus	Car	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
10	Alnus	Alnus	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
11	Tilia	Tilia	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
12	Quercus	Quercus	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
13	Juglans	Juglans	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
14	Ulmus	Ulmus	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
15	Fraxinus	Frx	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
16	Chenopodiaceae	Chenopod	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
17	Artemisia	Artemisia	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
18	Thalictrum	Tha	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
19	Ranunculaceae	Ranae	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
20	Sanguisorba	San	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
21	Poaceae	Poac	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
22	Cyperaceae	Cyperac	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
23	Pollen, other	Pollen other	%	Li, Nannan	Light microscope, Olympus Ltd, BX53 [x400 magnification]
24	Pollen, total	Pollen tot	#	Li, Nannan	Counted	Sum

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

2178 data points

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