Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/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
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ISSN | 1367-9120 |
EISSN | 1878-5786 |
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 |
推荐引用方式 GB/T 7714 | 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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