湖泊生物标志物与古气候环境变化的研究进展

湖泊沉积中的生物标志物可以提供丰富的信息,包括有机物来源、沉积过程的古环境条件等。湖泊沉积主要反映区域气候变迁史,可以揭示短至十年尺度的古气候事件,是高分辨率古环境、古气候重建的理想材料。与其他湖泊古气候古环境代用指标相比,生物标志物在湖泊古生态系统恢复与古生产率评估、古大气CO2分压与古温度确定等方面可以提供更为精细的信息,成为研究湖泊环境的有力工具。评述了湖泊沉积生物标志物在湖泊环境变化中的研究现状及应用前景。

Advance of the Lacustrine Biomarkers Research in Paleoclimate and Paleoenvironmental Reconstruction

The biomarkers in lascustrine sediments can provide abundant information,including source of organic matter,paleoenvironmental conditions in sediment process,etc.The lacustrine sediments can reconstruct regional paleoenvironment and paleoclimate with high resolution.Being compared with other proxies,lacustrine biomarkers can provide more subtle information of paleoproductivity,CO2 level of atmosphere,paleotemperature and the history,etc.Biomarkers become an effective tool in the research of the lacustrine environment.The paper summarizes the achievements of reconstructing paleoenvironment and paleoclimate by using biomarkers of lacustrine sediment,and evaluates the future development in this field.