BURIED ANCIENT FOREST AND IMPLICATIONS FOR PALEOCLIMATE SINCE THE MID-HOLOCENE IN SOUTH CHINA

The historical evolution of an ancient forest that developed at Gaoyao, south China, can be divided into 4 stages of radiocarbon intervals (1.1-1.5, 2.0-3.5, 3.6-4.0, and 4.3-4.9 ka) in which the last 3 stages all developed in a wetland and formed humic layers of 2.0, 0.5, and 0.7 m depth, respectiv...

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Bibliographic Details
Main Authors: Shen, C. D., Ding, P., Wang, N., Yi, W. X., Ding, X. F., Fu, D. P., Liu, K. X., Zhou, L. P.
Other Authors: Shen, CD (reprint author), Chinese Acad Sci, Guangzhou Inst Geochem, IKey Lab Isotope Geochronol & Geochemistry, Guangzhou 510640, Peoples R China., Chinese Acad Sci, Guangzhou Inst Geochem, IKey Lab Isotope Geochronol & Geochemistry, Guangzhou 510640, Peoples R China., Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China., Peking Univ, Dept Geog, Lab Earth Surface Proc, Beijing 100871, Peoples R China.
Format: Conference Object
Language:English
Published: 2010
Subjects:
INTERTROPICAL CONVERGENCE ZONE
NORTH-ATLANTIC CLIMATE
EAST-ASIAN MONSOON
HIGH-PRECISION
HOLOCENE
SCALE
VARIABILITY
RECORD
SEA
North Atlantic
Online Access:https://hdl.handle.net/20.500.11897/297312
Description
Summary:The historical evolution of an ancient forest that developed at Gaoyao, south China, can be divided into 4 stages of radiocarbon intervals (1.1-1.5, 2.0-3.5, 3.6-4.0, and 4.3-4.9 ka) in which the last 3 stages all developed in a wetland and formed humic layers of 2.0, 0.5, and 0.7 m depth, respectively. The humic layers were interrupted by 2 white-gray silty clay layers that most likely formed during climate fluctuations. Four drought events were identified during the evolution of the ancient forest, occurring around 4.3, 3.6, 2.0, and 1.1 ka, respectively, with durations of 1000 (14)C yr. These events are consistent with other records both in low- and high-latitude areas, in particular with the little ice ages occurring since the mid-Holocene. Precipitation likely increased from 5.0 to 3.6 ka in south China, then decreased, which is probably the main cause for the development as well as the demise of the ancient forest. http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000285437900057&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 Geochemistry & Geophysics SCI(E) CPCI-S(ISTP) 1

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