Holocene forcing of East Asian hydroclimate recorded in a subtropical peatland from southeastern China

The Holocene hydroclimate evolution and underlying mechanisms modulating the East Asian summer monsoon (EASM) remains controversial, especially in south eastern China. Here we present a multiproxy peat record of monsoon evolution from southeastern China covering the last 14 ka. Our new records show...

Full description

Bibliographic Details
Published in:Climate Dynamics
Main Authors: Huang, Xianyu, Zhang, Hongbin, Griffiths, Michael L., Zhao, Bingyan, Pausata, Francesco S. R., Tabor, Clay, Shu, Junwu(舒军武）, Xie, Shucheng
Format: Report
Language:English
Published: SPRINGER 2022
Subjects:
Hydroclimate
Southeastern China
Holocene
Lipids
Ocean-atmospheric teleconnection
MONSOON PRECIPITATION
SEASONAL TRANSITIONS
SUMMER MONSOON
STALAGMITE
DELTA-O-18
OPTIMUM
TEMPERATURE
CLIMATE
EVENT
Meteorology & Atmospheric Sciences
Ice Sheet
Online Access:http://ir.nigpas.ac.cn/handle/332004/40927
http://ir.nigpas.ac.cn/handle/332004/40928
https://doi.org/10.1007/s00382-022-06333-x
Description
Summary:The Holocene hydroclimate evolution and underlying mechanisms modulating the East Asian summer monsoon (EASM) remains controversial, especially in south eastern China. Here we present a multiproxy peat record of monsoon evolution from southeastern China covering the last 14 ka. Our new records show a relatively weaker EASM but wetter hydroclimate during the early (10 to 8 ka) and late Holocene (after 5.4 ka), while a stronger EASM and overall drier climate during the mid-Holocene (8 to 5.4 ka). In line with nearby speleothem records, our results reveal a dominant control of the northern-latitude ice-sheet meltwater forcing on millennial-scale East Asian hydroclimate variability during the last deglaciation and early Holocene. This dominant influence, however, likely waned once the global sea level had stabilized during the mid-to-late Holocene, giving way to other drivers of the monsoon and hydroclimate, including a combination of summer insolation and teleconnection patterns associated with vegetation-dust feedbacks.

Similar Items