Multi—Proxy Reconstructions of Climate Change and Human Impacts Over the Past 7000 Years From an Archive of Continental Shelf Sediments off Eastern Hainan Island, China
Multi—Proxy Reconstructions of Climate Change and Human Impacts Over the Past 7000 Years From an Archive of Continental Shelf Sediments off Eastern Hainan Island, China
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DOI：
10.3389/feart.2021.663634
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发表时间：
2021-06
期刊：
影响因子：
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通讯作者：
Chao Huang;D. Kong;Fajin Chen;Jianfang Hu;Peng Wang;Junchuan Lin
中科院分区：
文献类型：
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作者：
Chao Huang;D. Kong;Fajin Chen;Jianfang Hu;Peng Wang;Junchuan Lin
由于缺乏高分辨率的记录，人们对海南岛的气候突变事件和人类活动史知之甚少。本文利用海南岛东部沿海陆架高分辨率多指标记录，研究了近7,000年来气候突变和区域人类环境相互作用。在5400 - 4900 cal yr BP期间出现了显著的气候异常。季风区的各种古气候记录中都发现了这种季风的突然中断。异常夏季风强度在5400 - 4900卡年BP可能是由太阳变率，ENSO活动和冰漂流事件在北大西洋。1,500年来，随着人口的增长和生产技术的进步，人类活动日益成为控制海南岛自然环境的主导因素。
Abrupt climatic events and the history of human activities on Hainan Island are poorly understood, due to the lack of high-resolution records. We present high-resolution multiproxy records from the coastal shelf off eastern Hainan Island in China to investigate abrupt climate change and regional human–environment interaction over the last 7,000 years. A prominent climatic anomaly occurred during 5,400–4,900 cal yr BP. This abrupt monsoon failure has been detected in various paleoclimatic records from monsoonal regions. Anomalous summer monsoon intensity during 5,400–4,900 cal yr BP is probably driven by solar variability, ENSO activity and ice-rafting events in the North Atlantic. Over the past 1,500 years, with the growing population and progress in production technology, human activity has increasingly become the dominant factor controlling the natural environment of Hainan Island.