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中国沙漠 ›› 2017, Vol. 37 ›› Issue (2): 247-253.DOI: 10.7522/j.issn.1000-694X.2016.00040

• 古气候与环境演变 • 上一篇    下一篇

树轮长年表在全球变化相关领域中的应用研究进展-以14C曲线校正、环境考古和地质灾害事件定年为例

杨桃1,2   

  1. 1. 中国科学院西北生态环境资源研究院 沙漠与沙漠化重点实验室, 甘肃 兰州 730000;
    2. 中国科学院大学, 北京 100049
  • 收稿日期:2016-03-21 修回日期:2016-03-31 出版日期:2017-03-20 发布日期:2017-03-20
  • 作者简介:杨桃(1988-),女,陕西渭南人,硕士研究生,研究方向为树轮气候学。E-mail:yangtao@lzb.ac.cn
  • 基金资助:
    国家自然科学基金项目(41325008);中国科学院科技创新交叉与合作团队项目(29Y329B91)

A Review on Application of Super-Long Tree Ring Chronologies in Global Change Fields: Taking 14C calibration, archaeological dating and catastrophic events as examples

Yang Tao1,2   

  1. 1. Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2016-03-21 Revised:2016-03-31 Online:2017-03-20 Published:2017-03-20

摘要: 近几十年树轮年代学得到了迅速发展,现已成功建立了大量长度逾千年的树轮长年表。本文评述树轮长年表在全球变化相关研究领域中的应用。树轮长年表可为14C定年提供校准曲线,从而将样本的14C年龄转化为日历年龄,提高了14C测年的精度;也可为环境考古如古木建筑及墓葬等提供定年服务,确定古木构建筑的建造年代;树轮长年表在地质灾害事件定年方面也发挥了重要作用。然而,树轮长年表在上述研究领域的应用也存在不足,最新的国际14C会议公布的14C校正曲线中能够准确定年的树轮校正部分仅为过去12 410年,目前尚无法提供更长时间尺度的树轮校正曲线。在对木构建筑进行定年时受到古木样本量不足的限制等。因此,为了更好地发挥树轮长年表的应用潜力,应不断发掘与延长现有树轮宽度长年表,同时建立长年表的C、O同位素序列,以期为长年表的应用不断做出贡献。

关键词: 树轮长年表, 14C年代校正, 考古定年, 地质灾害事件

Abstract: Dendrochronology has been developed rapidly during the past decades. There are a large number of super-long (>1 000 years) tree-ring chronologies produced in different parts of the world. The main aim of this article is to introduce and review some important applications of long tree-ring chronologies in the following aspects. Firstly, in order to date the archeology sites precisely, the 14C age should be converted to the calendar age with the help of the correct' 14C calibration curve derived by the long tree-ring chronology. Secondly, long tree-ring chronologies are widely used in dating the ancient architectures and coffins. Finally, the paper introduced the application of long tree-ring chronologies in dating geological catastrophic events, such as dates of large earthquakes and volcanic eruptions. However, there are still many unavoidable problems needed to be solved in the applications of long-term tree ring chronologies. For instance, the longest tree-ring chronology spans only 12 410 years in the whole 14C calibration curve and is necessary to extend the calibration curve. Moreover, there are no sufficient wooden samples when determining the exact age of historical artifacts. Therefore, we should extend super-long tree ring chronologies and develop stable carbon and oxygen isotope series if we want to make more contributions to the work of tree ring application in such scientific fields.

Key words: long tree ring chronology, radiocarbon calibration, archaeological dating, catastrophic events

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