干旱气候变化与可持续发展

树轮氢、氧同位素研究进展

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  • 中国科学院兰州冰川冻土研究所冰心与寒区环境开放实验室 兰州 730000
陈拓, 男, 1971 年 6 月出生, 博士生, 自然地理学专业。

收稿日期: 1997-11-19

  修回日期: 1998-01-05

  网络出版日期: 1998-08-01

基金资助

中国科学院"九五"重大项目"亚洲季风气候变迁与全球变化"(KZ951-402-03)资助。

PROGRESS IN TREE-RING HYDROGEN AND OXYGEN ISOTOPE RESEARCH

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  • Laboratory of Ice Core and Cold Region Environment, Lanzhou Institute of Glaciology amd Geocryology, CAS, Lanzhou  730000

Received date: 1997-11-19

  Revised date: 1998-01-05

  Online published: 1998-08-01

摘要

总结了树轮氢氧同位素的分馏原理及其时间序列和空间变化与气候变迁之间的关系。研究表明,树轮氢氧同位素组成的变异反映了源水同位素组成、温度、相对湿度和降水量的变化。同时,对今后树轮同位素的发展方向作了展望。

本文引用格式

陈拓,秦大河,康兴成,任贾文,侯书贵 . 树轮氢、氧同位素研究进展[J]. 地球科学进展, 1998 , 13(4) : 382 -386 . DOI: 10.11867/j.issn.1001-8166.1998.04.0382

Abstract

The fractionation model of hydrogen and oxygen isotope in plants and the recent progress in tree-ring hydrogen and oxygen isotope research are overviewed. The composition of hydrogen and oxygen isotope in tree ring are correlated with the isotopic composition of source water, temperature, relative humidity or the amount of meteoric water, so it could provide favorable conditions to reconstruction paleoclimate with high resolution, accurate dating and good continuity, which may not be substituted by other mediums. In addition, the future trends in tree-ring hydrogen and oxygen isotopic research are presented, including inter-regional cooperation, the comparison with other mediums and interdiscipline and so on.

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