湖泊沉积记录千年气候变化的研究进展、挑战与展望

Study on the Lacustrine Sedimentary Records for past 1 000 Years: Development, Problems and Prospects

中文关键词:  湖泊沉积  千年气候  高分辨率

英文关键词:Lake sediments  Climate of the past millennium  High-resolution  

中文摘要:

      湖泊沉积记录在区域千年气候与环境变化方面的应用近年来发展迅速,成果令人瞩目。保存在各类湖泊岩芯中的气候指标如孢粉组合、地球化学元素、分子同位素、有机质色素、生物标志物等被广泛应用到气候因子的重建工作中。研究方法的改进、测年精度的提高、环境指标与气候因子之间的定量转换是今后湖泊沉积千年以来高分辨率研究的需要,此外还要重视加强多项环境指标的综合研究,寻求其它有效环境替代指标以及开展不同类型湖泊环境代理记录的对比研究。

英文摘要:

      The application of lake sediments in the study of regional 1000a BP climate and environment change has been well developed in the last few years,and the achievements are also excellent.Some proxies(e.g.palynological assemblage,geochemical elements,the molecular isotope,pigments and biomarker,et al.) have been widely used in the reconstruction of paleoclimate factors.The improvement of study method,elevation of dating precision and quantitative transformation between the proxies and climate factors are essen...