Introduction to “Late Pleistocene and Holocene climate change in continental Asia”
Introduction to “Late Pleistocene and Holocene climate change in continental Asia”
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DOI：
10.1007/s10933-013-9750-6
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发表时间：
2014-02
影响因子：
2.1
通讯作者：
S. Mischke;Fahu Chen
中科院分区：
文献类型：
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作者：
S. Mischke;Fahu Chen
这期关于亚洲大陆湖泊沉积记录的特刊中的大多数论文代表了在瑞士伯尔尼举行的第18届国际第四纪研究联合会（INQUA）会议上发表的古湖泊学研究。INQUA的成员都参与了第四纪地质调查。在伯尔尼举行的会议吸引了来自68个国家的2,000多名与会者，冰川学家克里斯蒂安·施吕希特主持了会议。2011年7月22日举行了亚洲大陆晚更新世和全新世气候变化特别会议。会议期间有16次口头发言和29张海报。该地区具有非凡的气候重要性，因为大量的水储存在高亚洲山脉的雪，冰和冻土中。这些水资源为世界上一些最大河流下游的数十亿人提供支持。此外，这些重要的水资源位于远离海洋的高海拔地区，在长期的冰川-间冰期时间尺度上经历了巨大的气候和环境波动（Kong等人，2011年）。最近的全球变暖已经导致青藏高原气温显著上升（Wei和Fang，2013年），预计该地区未来将继续发生气候变化。因此，需要更好地了解过去环境变化的幅度和时间，以便对未来的水供应情况作出可靠的预测。古湖沼学研究在解决过去区域水可利用性问题方面发挥着重要作用（Herzschuh 2006; Chen等人2008;王等，2010年）。这期特刊的论文讨论了晚更新世早期和中期相对温暖的气候时期的环境条件（海洋同位素阶段[MIS] 5和3），在晚冰期和全新世，在某些情况下，过去几个世纪和几十年。特刊中的论文介绍顺序遵循上述时间顺序。这个问题开始于四篇关于MIS 5或3记录的论文。第一篇论文是关于青藏高原北方柴达木盆地的古湖泊岸线的（Madsen等;图1）。随后，对同一盆地的沉积物进行了重新评估，这些沉积物以前被认为是海岸线沉积物或深湖沉积物（Mischke等人）。在下一篇论文中，Lai等人提出了该遗址的新年龄测定。他们回顾了一套放射性碳年代测定法，大部分来自MIS 3，通常比年龄年轻。
Most of the papers in this special issue on continental Asian lake sediment records represent palaeolimnological studies presented at the 18th International Union for Quaternary Research (INQUA) conference in Bern, Switzerland. INQUA members are all involved in investigating Quaternary geology. The meeting in Bern attracted more than 2,000 participants from 68 countries and glaciologist Christian Schlüchter presided over the conference. A special session on Late Pleistocene and Holocene climate change in continental Asia was held on 22 July 2011. There were 16 oral presentations and 29 posters in the session. The region is of extraordinary climatic importance because large amounts of water are stored in the mountain ranges of High Asia, in snow, ice and frozen ground. These water resources support billions of people in the lower reaches of some of the world’s largest rivers. In addition, these important water resources lie at high altitudes far from oceans, and have experienced large climate and environmental fluctuations on long-term, glacial-interglacial timescales (Kong et al. 2011). Recent global warming has already caused a significant temperature increase on the Tibetan Plateau (Wei and Fang 2013), and continued climate shifts in the region are anticipated for the future. Thus, a better understanding of the magnitude and timing of past environmental change is required to provide reliable predictions of future water availability. Palaeolimnological studies play an important role in addressing the issue of past regional water availability (Herzschuh 2006; Chen et al. 2008; Wang et al. 2010).Papers in this special issue address environmental conditions during relatively warm climate periods in the early and middle Late Pleistocene (Marine isotope stages [MIS] 5 and 3), during the late glacial and Holocene, and in some cases, the last few centuries and decades. The order of presentation of the papers in the special issue follows the above temporal sequence. The issue begins with four papers on MIS 5 or 3 records. The first paper is on dated palaeolake shorelines from the Qaidam Basin on the northern Tibetan Plateau (Madsen et al.; Fig. 1). It is followed by a re-assessment of sediments from the same basin, previously regarded either as shoreline deposits or deep lake sediments (Mischke et al.). In the next paper, Lai et al. present new age determinations for this site. They review a suite of radiocarbon dates, mostly from MIS 3, which generally are younger than ages