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首页> 外文期刊>Journal of Asian earth sciences >Variations in the East Asian winter monsoon from 3500 to 1300 cal. yr BP in northern China and their possible societal impacts
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Variations in the East Asian winter monsoon from 3500 to 1300 cal. yr BP in northern China and their possible societal impacts

机译：东亚冬季风从3500到1300 cal的变化。年BP在中国北方及其可能的社会影响

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摘要

Changes in paleoenvironments from 3500 to 1300 cal. yr BP have been documented by a high-resolution grain-size and organic carbon isotope record in core Z8 from the Shandong mud wedge in the southern Yellow Sea (YS). The sensitive grain-size component, sorting coefficients and delta C-13(org) values were used to identify the paleohydrologic variations and the intensity of the East Asian winter monsoon (EAWM). The coarse fraction of sediment, together with organic isotope and sea surface temperature (SST) data, shows a weak EAWM during 3500-2300 cal. yr BP, a gradual increase in the EAWM from 2300 to 1700 cal. yr BP and an enhanced EAWM since 1700 cal. yr BP. Superimposed on this general trend, several prominent short-lived strong EAWM episodes peaked at approximately 3300, 3100, 2900, 2750, 2620, 2220, 1900, 1700 and 1400 cal. yr BP. The paleoenvironmental record matches ancient Chinese historical climate records as well as socioeconomic changes, with lower economic levels occurring during stronger EAWM episodes. The results show that prosperous stages of ancient Chinese dynasties mainly occurred in weak EAWM periods, while collapses and/or changes in ancient Chinese dynasties generally occurred during cold periods with a strong EAWM. We suggest that the persistent short-lived strengthening of the EAWM could have exerted a remarkable influence on ancient agricultural societies through decreases in both winter temperature and monsoonal precipitation.
机译：古环境从3500到1300 cal的变化。 y BP记录在黄海南部（YS）的山东泥楔Z8岩心的高分辨率粒度和有机碳同位素记录中。敏感的粒度成分，分选系数和C-13（org）值用于识别古水文变化和东亚冬季风（EAWM）的强度。沉积物的粗大含量以及有机同位素和海面温度（SST）数据显示，在3500-2300 cal期间，EAWM较弱。 BP时期，EAWM从2300逐渐增加到1700 cal。自1700年以来，英国石油公司（BP）和增强的EAWM。年BP。在这种总体趋势的叠加下，几个短暂的，强烈的短暂EAWM发作达到了约3300、3100、2900、2750、2620、2220、1900、1700和1400卡的峰值。年BP。古环境记录与中国古代历史气候记录以及社会经济变化相吻合，EAWM发作期间经济水平较低。结果表明，中国古代王朝的繁荣期主要发生在弱电时期，而中国古代王朝的崩溃和/或变化通常发生在EAWM强的寒冷时期。我们认为，EAWM的持续短期强化可能通过降低冬季温度和季风降水而对古代农业社会产生了重大影响。

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  • 来源
    《Journal of Asian earth sciences》 |2019年第1期|103912.1-103912.12|共12页
  • 作者

    Chen Jinxia; Nan Qingyun; Li Tiegang; Sun Rongtao; Sun Hanjie; Lu Jian;

  • 作者单位

    SOA, Key Lab Marine Sediment Logy & Environm Geol, Inst Oceanog 1, Qingdao 266061, Shandong, Peoples R China|Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Shandong, Peoples R China;

    Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China|Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Shandong, Peoples R China;

    SOA, Key Lab Marine Sediment Logy & Environm Geol, Inst Oceanog 1, Qingdao 266061, Shandong, Peoples R China|Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Shandong, Peoples R China;

    Shandong Univ Technol, Sch Resources & Environm Engn, Zibo, Peoples R China;

    Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China|Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Shandong, Peoples R China;

    Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China|Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Shandong, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Grain size; Organic carbon Isotope; East Asian winter monsoon; Ancient Chinese dynasties; Yellow Sea;

    机译：粒度;有机碳同位素;东亚冬季季风;古代王朝;黄海;

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