青藏高原冰芯研究进展

青藏高原习研究是恢复该地区古气候、环境变化的有力手段，近年来取得了显著的成就。对青藏高原冰芯研究在稳定氧同位素、冰川积累量、冰芯的断代以及冰芯记录的环境指标等四个方面的研究进展进行了详细的评述，总结了冰芯记录所恢复的气候、环境变化研究成果，并对当前青藏高原冰芯研究中存在的问题和今后的发展趋势进行了探讨。

RESEARCH ADAVNCES OF ICE CORE RECORDS IN QINGHAI-TIBET PLATEAU

As a robust tool of reconstructing palaeo climate and palaeo enviroment,study on ice cores of Qinghai Tibet Plateau has obtained striking achievements in recent years.This paper has in detail analyzed and discussed stable oxygen isotope,glacial accumulation,the dating technique of ice core and environmental indices recorded in ice core.Based on the discussions above,the research results of climatic and environmental changes restored by the ice ore records has been summarized,such as reconstructed climatic and environmental series at different time scale(including the Little Ice Age,millennial scale,1 000 year scale series),consistences and similarities in climatic change between ice core records and other areas as well as the discovery of climate warming in the 20th century.In addition,current problems and developmental tendencies of ice core study in Qinghai Tibet Plateau have been suggested.As stated below:(1)More robust functional relationship between stable oxygen isotope and temperature will be perfected;(2)Comparison and analysis of ice core records in Qinghai Tibet Plateau with those of its surrounding areas and even North Hemisphere at different time scale and defferent resolution are playing an important role in studying climatic variations.(3)Contents and scope on ice core research on Qinghai Tibet Plateau are to develop and extend.(4)Determination of greenhouse gases and rare gases closed in ice core bubbles tend to be an important aspect in ice core study.(5)Research on stage,abrupt change and mechanism of climatic and environmental evolution will be strengthened.