| 末次冰消期以来北极东北陆架对快速气候变化的响应 |
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| 引用本文： | 石学法,董江,胡利民,冯晗,姚政权,乔淑卿.末次冰消期以来北极东北陆架对快速气候变化的响应[J].海洋科学进展,2022,40(4):640-659. |
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| 作者姓名： | 石学法 董江 胡利民 冯晗 姚政权 乔淑卿 |
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| 作者单位： | 自然资源部 第一海洋研究所海洋地质与成矿作用重点实验室,山东 青岛 266061;青岛海洋科学与技术试点国家实验室 海洋地质过程与环境功能实验室,山东 青岛 266061;青岛海洋科学与技术试点国家实验室 海洋地质过程与环境功能实验室,山东 青岛 266061;中国海洋大学 海洋地球科学学院海底科学与探测技术教育部重点实验室,山东 青岛 266100 |
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| 基金项目： | 国家自然科学基金项目——末次冰消期以来北极东西伯利亚陆架对快速气候变化的响应（42130412）和全新世北极东西伯利亚海冰演化及其控制机制的研究（42006199）;山东省自然科学基金项目——全新世北极东西伯利亚海季节性海冰演化历史半定量/定量重建的研究（ZR2020QD110）;山东省泰山学者攀登计划项目（20181216） |
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| 摘 要： | 北极快速气候变化越来越深刻影响着北极地区以及全球的环境变化,已成为当今地球科学研究的重大前沿科学问题。北极东北陆架作为世界上最宽广平坦的陆架,既是北冰洋季节性海冰形成的主要源区,又是现代海冰变化最强烈的区域,对气候变化敏感,响应强烈,属于环境脆弱地区。通过全面分析近年来国际上在末次冰消期以来快速气候变化背景下北极东北陆架环境响应的研究进展和存在的主要问题,阐述了沉积物“源—汇”过程、海冰演化历史、碳循环以及快速气候变化事件等方面取得的研究成果,发现东北陆架地区沉积物和有机碳来源复杂,时空变化强烈,气候和环境变化过程与海冰演化息息相关。未来的研究应加强现代过程的长期连续观测,重视地质记录中气候环境演变信号的精确解译,深化数值模拟技术和大数据的挖掘与使用,开展不同时间尺度北极快速气候变化及其驱动机制研究,并加强北极快速气候变化对中纬度地区特别是对东亚以及我国环境变化影响的研究。
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| 关 键 词： | 快速气候变化 海冰变化 “源—汇”过程 碳循环 末次冰消期 北极东北陆架 |
| 收稿时间： | 2022/6/3 0:00:00 |
Response of the Northeastern Arctic Shelf to Rapid Climate Changes Since the Last Deglaciation |
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| SHI Xue-f,DONG Jiang,HU Li-min,FENG Han,YAO Zheng-quan,QIAO Shu-qing.Response of the Northeastern Arctic Shelf to Rapid Climate Changes Since the Last Deglaciation[J].Advances in Marine Science,2022,40(4):640-659. |
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| Authors: | SHI Xue-f DONG Jiang HU Li-min FENG Han YAO Zheng-quan QIAO Shu-qing |
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| Institution: | Key Laboratory of Marine Geology and Metallogeny, FIO, MNR, Qingdao 266061, China;Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China;Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China;College of Marine Geosciences, Key Laboratory of Submarine Geosciences and Prospecting Technology, Ocean University of China, Qingdao 266100, China |
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| Abstract: | The rapid climate change in the Arctic has a profound impact on the environmental changes in the Arctic region and the world, and has become a major frontier issue in the Earth science community. The northeastern Arctic shelf, the broadest and flattest continental shelf in the world, is not only the main source area of seasonal sea-ice formation but also the area with the most intense changes in modern sea ice, thus is sensitive to climate change and becomes an environmentally fragile region. Here, we summarize recent studies and their main problems on the environmental response of the northeastern Arctic shelf under the background of rapid climate changes since the last deglacial period, and review new findings from the aspects of sediment "source-to-sink" process, sea-ice change, carbon cycle and rapid climate change events. It was found that the sources of sediments and organic carbon in the northeastern Arctic shelf are complicated, which have intense spatial and temporal variability, and the climatic and environmental changes are closely related to the evolution of sea ice. The future research should strive to launch a large international cooperation project, strengthen long-term continuous observation of modern processes, attach importance to the accurate interpretation of climate and environmental signals in geological records, deepen the use of the numerical simulation technology and big data, carry out research on rapid climate change in the Arctic and its driving mechanisms at different time scales, and strengthen the studies on relationship between rapid climate change in the Arctic and environmental change in the East Asia (China). |
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