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Climate of the late Pleistocene and early Holocene in coastal South China inferred from submerged wood samples

Artikel i vetenskaplig tidskrift
Författare Keyan Fang
B. G. Cai
X. M. Liu
G. L. Lei
X. Y. Jiang
Y. Zhao
H. C. Li
H. Seppa
Nature V. P. Mpbell Ja
Publicerad i Quaternary International
Volym 447
Sidor 111-117
ISSN 1040-6182
Publiceringsår 2017
Publicerad vid Institutionen för geovetenskaper
Sidor 111-117
Språk English
Länkar dx.doi.org/10.1016/j.quaint.2017.02...
Ämnesord Submerged woods, Tree ring, Taiwan Strait, Climate variability, Sea level change, sea-level, el-nino, tibetan plateau, fujian province, records, oscillation, vegetation, variability, millennium, chronology, Physical Geography, Geology
Ämneskategorier Geologi

Sammanfattning

Tree-ring variability of submerged wood specimens in coastal areas provides important clues about sea level change and climate variability of the past. We dated submerged wood samples from coastal Fujian province in China using the radiocarbon methods and investigated their tree-ring variability. The submerged wood samples from the Shenhu Bay that date to the early Holocene (similar to 8000 calibrated years B.P.) may be related to the rise of the sea level after the Last Glacial Maximum (LGM). The submerged wood samples from the Qianhu Bay site dated to the Marine Isotope Stage 3 (MIS 3) (> 40,000 calibrated years B. P.). Most of the submerged wood samples are from coniferous trees with frequent branching tree rings. Frequent branching tree rings in this region are mostly found from the currently endangered coniferous species with narrow ecological amplitude at humid sites. Tree rings of the submerged sample show conspicuous interdecadal variability (similar to 20 years) than interannual variations, which differs from modern tree rings of nearby regions which have stronger interannual and multi-decadal variability. Our study highlights the potential to use submerged samples of coastal Southeast China for paleoclimate studies.

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