Holocene evolution of Huangqihai Lake in semi-arid northern China based on sedimentology and luminescence dating
Holocene evolution of Huangqihai Lake in semi-arid northern China based on sedimentology and luminescence dating
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基于沉积学和发光测年的中国北方半干旱黄旗海全新世演化
DOI：
10.1177/0959683611405232
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发表时间：
2011-08
期刊：
影响因子：
2.4
通讯作者：
Yang, LinHai
中科院分区：
文献类型：
--
作者：
Zhang, JingRan;Jia, YuLian;Lai, ZhongPing;Long, Hao;Yang, LinHai
对中国北部干旱半干旱地区全新世古气候变化模式进行了讨论。黄旗海末端位于现代东亚夏季风的北缘，对气候变化敏感。本文介绍了黄旗海湖盆的沉积剖面，它由湖相沉积和河流沉积组成，高于现今湖平面约8-9m。利用石英光激发发光(OSL)测年技术建立了该剖面的年代学。根据OSL年代学、沉积学和粒度分析，得出如下结论：(1)全新世早期(约10.2±1.0~6.7±0.7 ka)，黄旗海为湿润气候，湖高持续稳定，(2)湖平面在8.7±0.8 ka~6.7±0.7 ka之间开始下降，表明干旱化，6.7±0.7 ka以后，气候变得干燥多变；(3)2.2±0.2~0.93±0.0 7ka，气候条件高度多变且持续恶化，大部分时间为游乐区。综上所述，全新世早期至全新世晚期气候总体呈干旱化趋势。
The pattern of Holocene palaeoclimatic change in arid-semiarid northern China is debated. The terminal Huangqihai Lake is located at the northern margin of the modern East Asian summer monsoon and sensitive to climate change. We present here a sedimentary section from Huangqihai lake basin which comprises lacustrine and fluvial deposits and is about 8–9 m above the present lake level. Quartz optically stimulated luminescence (OSL) dating was employed to construct the chronology of the section. Based on the OSL chronology and the sedimentological and granulometric analysis, we conclude that (1) the Huangqihai Lake experienced a humid climate during the early part of the Holocene (from c. 10.2 ± 1.0 to 6.7 ± 0.7 ka) with a persistent and stable high lake level; (2) the lake level began to decline indicating aridification between 8.7 ± 0.8 ka and 6.7 ± 0.7 ka, and the climate was drier and variable after 6.7 ± 0.7 ka compared with that of before; (3) from 2.2 ± 0.2 to 0.93 ± 0.07 ka the climatic conditions were highly variable and continuously deteriorating, and the lake was turned into a playa for most of the time. In summary, the climate showed a general drying trend from the early Holocene to the late Holocene.
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影响因子：
1.6
作者：
T. V. Andel;A. Hecht
通讯作者：
T. V. Andel;A. Hecht
影响因子：
3
作者：
Zhongping Lai;H. Brückner
通讯作者：
Zhongping Lai;H. Brückner
DOI：
--
发表时间：
2006
期刊：
Arid Land Geography
影响因子：
--
作者：
Shen Hong-yuan
通讯作者：
Shen Hong-yuan
影响因子：
2
作者：
Zhongping Lai;H. Brückner;L. Zöller;A. Fülling
通讯作者：
Zhongping Lai;H. Brückner;L. Zöller;A. Fülling
DOI：
--
发表时间：
1985
期刊：
--
影响因子：
--
作者：
F. Street-Perrott
通讯作者：
F. Street-Perrott