Sporo-pollen assemblage and paleoclimate events in shelf area of the southern Yellow Sea since 15 ka B. P.

Meng Guanglan; Han Yousong; Wang Shaoqing; Wang Zhenyan

doi:10.1007/BF02842799

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Sporo-pollen assemblage and paleoclimate events in shelf area of the southern Yellow Sea since 15 ka B. P.

Updated：2023-05-16

- Sporo-pollen assemblage and paleoclimate events in shelf area of the southern Yellow Sea since 15 ka B. P.
- Journal of Oceanology and Limnology Vol. 22, Issue 1, Pages: 44-53(2004)
- Affiliations：
  
  Institute of Oceanology Chinese Academy of Sciences
- Author bio：
- Funds：
- DOI：10.1007/BF02842799
  CLC：
- Published：2004
- Accepted：
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Guanglan, M., Yousong, H., Shaoqing, W. et al. Sporo-pollen assemblage and paleoclimate events in shelf area of the southern Yellow Sea since 15 ka B. P.., Chin. J. Ocean. Limnol. 22, 44–53 (2004). https://doi.org/10.1007/BF02842799
DOI：

Guanglan, M., Yousong, H., Shaoqing, W. et al. Sporo-pollen assemblage and paleoclimate events in shelf area of the southern Yellow Sea since 15 ka B. P.., Chin. J. Ocean. Limnol. 22, 44–53 (2004). https://doi.org/10.1007/BF02842799 DOI：

摘要

Abstract

Based on the authors’ 1986 to 1994 sporo-pollen assemblage analysis in the southern Yellow Sea area

data from 3 main cores were studied in combination with14C

palaeomagnetic and thermoluminescence data. The evolution of the paleoclimate environments in the southern Yellow Sea since 15ka B. P. was revealed that

in deglaciation of the last glacial period

the climate of late glaciation transformed into that of postglaciation

accompanied by a series of violent climate fluctuations. These evolution events happened in a global climate background and related to the geographic changes in eastern China. We distinguished three short-term cooling events and two warming events. Among them

the sporo-pollen assemblage of subzone A1 showed some cold climate features indicating that a cooling event occurred at about 15-14ka. B. P. in early deglaciation. This subzone corresponds to the Oldest Dryas. In subzone A3

many drought-enduring herbal pollens and some few pollens of cold-resistantPicea

Abies

etc. were found

which indicated that a cooling event

with cold and arid climate

occurred at about 12-11ka. B. P. in late deglaciation. This subzone corresponds to the Younger Dryas. The sporo-pollen assemblage of zone B showed warm and arid climate features in postglaciation. Although the assemblage of subzone B2 indicated a cold and arid climate environment

the development of flora in subzone B2 climate was less cold than that in A3. Subzone B2 indicated a cooling event which occurred at about 9ka B. P. in early olocene. Subzone A2

with some distinct differences from subzone A1 and A3

indicated a warming event which occurred at 14-13ka. B.P. and should correspond to a warming fluctuation. The sporo-pollen assemblage of zone C showed features of warn-moist flora and climate

and indicated a warming event which universally occurred along the coast of eastern China at 8-3 ka B. P. in middle Holocene

and its duration was longer than that of any climate events mentioned above. This period was climatic optimum and belonged to an altithermal period in postglaciation.

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references

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