Palaeoclimatic changes in the Qinghai Lake area during the last 18,000 years
Palaeoclimatic changes in the Qinghai Lake area during the last 18,000 years
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DOI：
10.1016/j.quaint.2004.11.014
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发表时间：
2005-07-01
影响因子：
2.2
通讯作者：
Matsumoto, R
中科院分区：
文献类型：
--
作者：
Shen, J;Liu, XQ;Matsumoto, R
青海湖沉积岩芯的多指标分析，包括孢粉、碳酸盐、总有机碳、总氮和C-13三角洲有机质，被用来记录过去18000年来的区域气候变化。在16.9卡之前，气候非常寒冷和干燥。KYR BP。暖湿期，大约从14.1卡开始。KYR BP，最高为6.5卡。KYR BP，并在大约4.5卡路里结束。KYR BP。在那之后，气候逐渐变得越来越冷和干燥。在晚冰期至全新世的过渡时期，气候波动频繁。短期气候振荡，包括波林、阿勒罗德、年轻仙女木和约8.2卡的降温事件。KYR BP，似乎记录在青海湖沉积记录中。青海湖地区近18000年来的气候演变表明，万年尺度的太阳辐射变化可能是东亚季风的驱动力。(C)2004年爱思唯尔有限公司和INQUA。版权所有。
Multi-proxy analysis of a sediment core from Qinghai Lake, including pollen, carbonate, TOC, TN and delta C-13 of organic matter, was used to document regional climatic changes during the last 18,000 years. Climate was very cold and dry before 16.9 cal. kyr BP. The warm and wet period, which began at about 14.1 cal. kyr BP, culminated at 6.5 cal. kyr BP and came to its end at about 4.5 cal. kyr BP. After that, the climate gradually became colder and drier. During the transitional period from the Late Glacial to the Holocene the climate fluctuated frequently. The short-term climatic oscillations, including the Bolling, Allerod, Younger Dryas and the cooling event at ca. 8.2 cal. kyr BP, appear to be recorded in the Qinghai Lake sedimentary record. The climatic evolution in the Qinghai Lake area during the past 18,000 years indicates that solar insolation changes on the ten-thousand-year scale are the likely driving force of the East-Asia monsoon. (c) 2004 Elsevier Ltd and INQUA. All rights reserved.