Arid
DOI10.1016/j.jseaes.2015.07.021
Changes in climate and vegetation of central Guizhou in southwest China since the last glacial reflected by stalagmite records from Yelang Cave
Zhao, Min1,2; Li, Hong-Chun2; Liu, Zai-Hua1; Mii, Horng-Sheng3; Sun, Hai-Long1; Shen, Chuan-Chou2,4; Kang, Su-Chen2
通讯作者Li, Hong-Chun
来源期刊JOURNAL OF ASIAN EARTH SCIENCES
ISSN1367-9120
EISSN1878-5786
出版年2015
卷号114页码:549-561
英文摘要

Two stalagmites (6-cm and 18-cm long) from Yelang Cave (26 2’28"N, 105 44’11"E) in central Guizhou of China have been dated by ICP-MS Th-230/U, Pb-210 and AMS C-14 dating methods. Low U but high Th contents in the young stalagmites were difficult to apply 23 Th-230/U dating. Instead, AMS 14C dating solved the chronological problem of these stalagmites. Both stalagmites had fast growth rates during Holocene Optimum and the last 600 years, but absent growth between 4 and 8 ka. The delta O-18 record of Stalagmite 20120824-13 agrees well with the Dongge delta O-18 records on centennial or longer scales, showing dry climates during the Last Glacial Maximum (LGM) and Younger Dryas and wet climates during Holocene Optimum following the solar insolation trend. The summer monsoon strength decreased from 4.12 ka to 1.5 ka, but increased during the Medieval Warm Period to produce wet climates and abundant vegetation in the study area. The delta O-18 record during the last 600 years exhibits strongly decadal variations. Twelve light delta(18) O excursions on decadal scales during the last 600 years can be identified, agreeing with the local Dry-Wet index record. The Pacific Decadal Oscillation (PDO) strongly affects decadal variability of the moisture budget in the study area, with cold PDO (La Nifia condition) in favor of stronger EASM and wet climates. The delta C-13 record indicates that natural vegetation in the study area was strongly destroyed by human activity after the reign of Emperor Yong Zheng (AD 1722-1735) of Qing Dynasty. Since then, the karst-desertification in central Guizhou has been strongly developed due to rapidly increased population and land-use. (c) 2015 Elsevier Ltd. All rights reserved.


英文关键词Stalagmite AMS C-14 dating delta O-18 and delta C-13 record East Asian monsoon Pacific Decadal Oscillation Holocene Late pleistocene Central Guizhou
类型Article
语种英语
国家Peoples R China ; Taiwan
收录类别SCI-E
WOS记录号WOS:000367857800013
WOS关键词HOLOCENE ASIAN MONSOON ; HIGH-RESOLUTION RECORD ; SUMMER MONSOON ; OXYGEN-ISOTOPE ; HIGH-PRECISION ; HULU CAVE ; SPELEOTHEMS ; CARBON ; VARIABILITY ; SYSTEM
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/188422
作者单位1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China;
2.Natl Taiwan Univ, Dept Geosci, Taipei 10617, Taiwan;
3.Natl Taiwan Normal Univ, Dept Earth Sci, Taipei 11677, Taiwan;
4.Natl Taiwan Univ, Dept Geosci, High Precis Mass Spectrometry & Environm Change L, Taipei 10617, Taiwan
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Zhao, Min,Li, Hong-Chun,Liu, Zai-Hua,et al. Changes in climate and vegetation of central Guizhou in southwest China since the last glacial reflected by stalagmite records from Yelang Cave[J],2015,114:549-561.
APA Zhao, Min.,Li, Hong-Chun.,Liu, Zai-Hua.,Mii, Horng-Sheng.,Sun, Hai-Long.,...&Kang, Su-Chen.(2015).Changes in climate and vegetation of central Guizhou in southwest China since the last glacial reflected by stalagmite records from Yelang Cave.JOURNAL OF ASIAN EARTH SCIENCES,114,549-561.
MLA Zhao, Min,et al."Changes in climate and vegetation of central Guizhou in southwest China since the last glacial reflected by stalagmite records from Yelang Cave".JOURNAL OF ASIAN EARTH SCIENCES 114(2015):549-561.
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