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Holocene climate dynamics derived from pollen record of Jiulongchi wetland in Fanjing Mountain, southwest China TEXT SIZE: A A A
An alpine wetland core was obtained to a depth of 4.0 m from the Fanjing Mountain in southwest China. Sections of the core were dated with C-14 data obtained with high resolution mass spectrometry (AMS), and Holocene climate changes were inferred by categorizing predominant tree and fern vegetation identified from pollen and spore counts at various core depths. The temperature increased during 11.9-8.0 cal ka BP, and the warmest period was during 8.0-4.6 cal ka BP. Then, it gradually became cooler during the late Holocene. Our temperature estimates were in good agreement with the previous studies of the Holocene temperature in the Asian monsoon areas. There were two relatively wet periods of 10.7-8.0 cal ka BP and 4.6-2.6 cal ka BP. There was an asynchronous precipitation trend in the south, north and southwest China, which was probably due to the different monsoon impacts. In East Asian summer monsoon (EASM) area, the monsoon precipitation gradually transgressed northward during the early to middle Holocene and regressed southward during the late Holocene. Our results will be useful to improve the understanding of the coherent spatio-temporal patterns of climate evolution in EASM region in China.
 

Publication name

 QUATERNARY INTERNATIONAL, 513 1-7; 10.1016/j.quaint.2019.01.009 APR 20 2019

Author(s)

 Gao, Yang; Xiong, Kangning; Quan, Mingying; Song, Bing; Peng, Haijun; Peng, Huirong; Shen, Weidan; Bao, Kunshan

Corresponding author(s) 

 XIONG Kangning 
 xiongkn@163.com
 Guizhou Normal Univ, Sch Karst Sci, State Key Lab Incubat Base Karst Mt Ecol Environm, Guiyang 550001, Guizhou, Peoples R China.
 BAO Kunshan
 ksbao@niglas.ac.cn
 Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China.

Author(s) from IGCAS   PENG Haijun

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