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首页> 外文期刊>Oceanographic Literature Review >Vegetation evolution in response to climate change and rapid sea-level rise during 8.2-7.0 cal ka BP: Pollen evidence from the northwest coast of Bohai Bay, north China;
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Vegetation evolution in response to climate change and rapid sea-level rise during 8.2-7.0 cal ka BP: Pollen evidence from the northwest coast of Bohai Bay, north China;

机译：植被演变以应对气候变化和快速海平面上升8.2-7.0克尔·斯（Cal Ka BP）：来自华北渤海湾西北海岸的花粉证据;

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To understand vegetation dynamics and their response to climate changes and sea-level rise (SLR) on the northern coast of the Bohai Sea during a marine transgression period (8.2-7.0 cal ka BP), we obtained two sedimentary cores (HG01 and HG02) with high-resolution accelerator mass spectrometry carbon-14 (~(14)C) data from the coastal plain of Bohai Bay in northeastern China. A general warming and wetting trend from 8190 to 7920 cal a BP was indicated by the greater abundance of deciduous broa-dleaved forest, which showed that the Asian summer monsoon was stronger over this period. The abundance of deciduous broa-dleaved trees was relatively high, which revealed that the climate was relatively warm and wet and that the Asian summer monsoon was strong, during the periods of 7920-7690 cal a BP and 7230-7020 cal a BP. Broadleaved tree abundance decreased over the intervening period-from 7610 to 7230 cal a BP-suggesting a declining monsoon, and relatively cool, dry climate. The abrupt cooling event from 7460 to 7230 cal a BP may have been a global event, closely related to the decrease in solar activity and rapid SLR before 7460 cal a BP. The results also showed that the large number of halophytes mainly Chenopodiaceae, sharply increased at times, mirroring four SLR fluctuation periods: 7940-7860 cal BP, 7760-7700 cal BP, 7560-7460 cal BP, and 7230-7130 cal BP. SLR in Bohai Bay occurred during warm and wet climate periods, and the phased SLR observed during ～7.9-～7.1 cal ka BP may have been the local manifestation of a global event.
机译：要了解植被动态及其对渤海北部海岸的气候变化和海平面上升（SLR）的反应，我们在海外违规期间（8.2-7.0只Cal Ka BP），我们获得了两种沉积核（HG01和HG02）随着高分辨率的加速器质谱碳-14（〜（14）c）来自中国东北渤海湾沿海平原的数据。通过8190至7920 CAL A BP的一般变暖和润湿趋势是由落叶繁殖林的大量大量的，这表明亚洲夏季季风在此期间更强劲。落叶繁殖的繁殖树木的丰富率相对较高，这揭示了气候相对温暖和潮湿，亚洲夏季季风强劲，在7920-7690次CAL A BP和7230-7020 Cal A BP期间。阔叶树丰度在介入期间减少 - 从7610到7230 CAL A BP表明季风衰退，以及相对凉爽的气候。突然的冷却事件从7460到7230 CAL A BP可能一直是全球事件，与在7460 CAL A BP之前的太阳能活动和快速SLR的减少密切相关。结果还表明，大量卤素酵母主要嗜尼复西亚氏岩，有时大幅增加，镜像四个单反波动时期：7940-7860 CAL BP，7560-7460 CAL BP和7230-7130 CAL BP。渤海湾的SLR发生在温暖和湿润的气候时期，并且观察到〜7.9-〜7.1克拉BP期间的相位的单反相机可能是全球活动的当地表现形式。

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    《Oceanographic Literature Review》 |2020年第10期|2104-2104|共1页
  • 作者

    L. Zhao; C. Ma; Q. Xu;

  • 作者单位

    School of Geography and Ocean Science Nanjing University Nanjing 210023 China;

    School of Geography and Ocean Science Nanjing University Nanjing 210023 China;

    School of Geography and Ocean Science Nanjing University Nanjing 210023 China;

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