Holocene vegetation evolution, hydrologic variability and sea-level fluctuations on the south coastal plain of Laizhou Bay, Bohai Sea, China: new evidence from pollen, freshwater algae and dinoflagellate cysts

Hao, Xin; Li, Lixue; Ouyang, Xuhong; Qin, Linjuan; Jiang, Xingyu; Li, Jianfen; Wang, Fu

doi:10.1007/s10933-021-00229-2

Cited by 6 publications

(1 citation statement)

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“…Therefore, palynological analysis played an important role in restoration and reconstruction of vegetation history and sea-level fluctuations, which provides information from the sediment cores, especially in alluvial coastal plain regions. (Nakagawa et al, 2003;Pidek et al, 2010;Zhao et al, 2011;Lowe and Walker, 2015;Hao et al, 2022). Distributions of modern dinoflagellate cysts (dinocysts) and planktonic Foraminiferal fauna in marine environments are directly associated with upper water masses, sea-surface temperature, salinity, nitrate, phosphate, and other oceanographic variables (Rochon et al, 1999;Dale, 2009;de Vernal et al, 2005;Pospelova and Kim, 2010;Zonneveld et al, 2013;Hao et al, 2020).…”

Section: Microfossil Analysesmentioning

confidence: 99%

High-resolution sea-level fluctuations during the Mid-Holocene in the Ningshao Coastal Plain region, eastern China

Ling,

Xue,

Yao

et al. 2023

Front. Ecol. Evol.

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Sea level changes during the Mid-Holocene directly influenced the Neolithic culture in the Yangtze River Delta region (YRD). However, the high-resolution sea level change characteristics for this period remain unclear. In this study, we performed a high-resolution palynological analysis, including pollen, Dinoflagellate cysts, and Foraminiferal organic linings, using a high-resolution sediment core from Shanglin Lake, in the North of Ningshao Plain (the south of Hangzhou Bay). 11 accelerator mass spectrometry 14C(AMS) datings indicate the age of the sediments range from 8 cal ka B.P. to 5.6 cal ka B.P. The results show that during the Mid-Holocene, Shanglin Lake evolved from an estuary – subtidal lagoon – semi-enclosed bay – semi-enclosed lagoon – semi-enclosed bay – enclosed lagoon to a modern freshwater lake. There was a period of no, or minimal, eustatic sea-level rise between 7733 and 7585 cal yr B.P. The Mid-Holocene high sea level comes in 7253–7082 cal yr BP. Between 7000 cal yr BP and 5502 cal yr BP, the sea level is close to modern value. The sea level change during this period had a significant impact on the local Neolithic human activity.

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