Postglacial climate variability at the northern limit of the East Asian monsoon and its impact on environments and humans in the Hokkaido region, northern Japan

东亚季风北端冰后气候变化及其对日本北部北海道地区环境和人类的影响

• 批准号: 274137614
• 负责人: Dr. Christian Leipe
• 金额: --
• 依托单位: University of Nagoya
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/274137614?language=en
• 关键词: Postglacial; climate; variability; northern; limit

High-resolution vegetation and climate archives from the Hokkaido region (North Japan) are of critical importance (i) for a better understanding of modern environmental changes because late Quaternary climate warming and sea level rise had a dramatic impact on this island region; (ii) for understanding the role of environmental factors on land use strategies and human populations in coastal regions and (iii) for validating prognostic potential of regional climate models. Previous palaeoenvironmental studies suggest different patterns of post-glacial climate and vegetation development in North Japan and other regions of Monsoon Asia. In order to investigate these regional differences and their background mechanisms, the current research project has been designed, which uses two continuous sedimentary archives from the northern (Rebun Island) and southern (Kameda Peninsula) part of Hokkaido covering the last ca. 17,000 and 14,000 years, respectively. The main objectives of the project include: (i) generating high-resolution fossil pollen records for (ii) detailed reconstruction of the spatio-temporal patterns of the regional vegetation and climate development in northern Japan in order to use the results for (iii) correlation with the post-glacial climate evolution in other parts of the East Asian monsoon domain, (vi) reconstructing the living environments and human-environmental interactions over time and (v) providing quantitative information for testing results of numerical climate and vegetation models. The palynological investigations will be supplemented by various sedimentological (e.g. microfacies, geochemical) and biological (e.g. diatom) analyses helpful for identification of short-term changes in environmental conditions (e.g. volcanic eruptions, tsunami). Extensive radiocarbon dating and microfacies analysis will provide a precise chronological control for the analysed sedimentary archives. To allow for direct correlation with the archaeological sequences from Hokkaido, the ages of the main cultural layers will be determined based on radiocarbon dating of reservoir-free terrestrial plant macrofossils (fruits and seeds). The archaeological data required within the scope of this project will be derived from the archaeological database run by the Japanese government and from ongoing archaeological research projects of the German and international cooperation partners.

来自北海道地区(日本北部)的高分辨率植被和气候档案至关重要：(1)对于更好地了解现代环境变化，因为晚第四纪气候变暖和海平面上升对这个岛屿地区产生了巨大影响；(2)理解环境因素对沿海地区土地利用战略和人口的作用；(3)验证区域气候模型的预测潜力。以前的古环境研究表明，日本北部和亚洲季风其他地区的冰后气候和植被发展模式不同。为了研究这些区域差异及其背景机制，设计了本研究项目，使用了北海道北部(雷本岛)和南部(龟田半岛)两个连续的沉积档案，分别覆盖了过去约1.7万年和1.4万年的历史。该项目的主要目标包括：(1)产生高分辨率的化石花粉记录，用于(2)详细重建日本北部区域植被和气候发展的时空格局，以便将所得结果用于(3)与东亚季风域其他地区冰川后气候演变的对比；(6)重建生活环境和人与环境随时间的相互作用；(5)为气候和植被数值模型的检验结果提供定量资料。孢粉学调查将辅之以各种沉积学(如微相、地球化学)和生物(如硅藻)分析，这些分析有助于确定环境条件的短期变化(如火山喷发、海啸)。广泛的放射性碳测年和微相分析将为所分析的沉积档案提供精确的年代学控制。为了与北海道的考古序列直接相关，主要文化层的年龄将根据无水库陆地植物大型化石(水果和种子)的放射性碳测年来确定。本项目范围内所需的考古数据将来自日本政府运行的考古数据库以及德国和国际合作伙伴正在进行的考古研究项目。

项目成果

Vegetation change and human impacts on Rebun Island (Northwest Pacific) over the last 6000 years

• DOI: 10.1016/j.quascirev.2018.06.011
• 发表时间: 2018-08
• 期刊: Quaternary Science Reviews
• 影响因子: 4
• 作者: C. Leipe;S. Müller;Konrad Hille;Hirofumi Kato;F. Kobe;M. Schmidt;Konrad Seyffert;R. Spengler;Mayke Wagner;A. Weber;P. Tarasov

Spatio-temporal distribution of hunter–gatherer archaeological sites in the Hokkaido region (northern Japan): An overview

• DOI: 10.1177/0959683616641745
• 发表时间: 2016-04
• 期刊: The Holocene
• 作者: Chiharu Abe;C. Leipe;P. Tarasov;S. Müller;Mayke Wagner

Testing the performance of sodium polytungstate and lithium heteropolytungstate as non-toxic dense media for pollen extraction from lake and peat sediment samples

测试多钨酸钠和杂多钨酸锂作为无毒致密介质从湖泊和泥炭沉积物样品中提取花粉的性能

• DOI: 10.1016/j.quaint.2018.01.029
• 期刊: Quaternary International
• 影响因子: 2.2
• 作者: Müller