湖泊是陆地水圈的重要组成部分,受大气圈、水圈、岩石圈和生物圈共同影响,是各个圈层相互作用的连接点。湖泊接纳了来自地表丰富的侵蚀物质,是陆地环境变化的天然档案馆,形成了较为完整的湖泊沉积物。湖泊沉积物不同赋存形态Rb/Sr比值可以反演流域搬运与化学风化作用:非残渣态Rb/Sr比值反映流域化学风化作 Lakes are an important part of the land hydrosphere. Affected by the atmosphere, the hydrosphere, the lithosphere and the biosphere, lakes are the connecting points of the interaction between the various lakes. The lake receives the abundant erosion material from the surface and is a natural archives of land environment change, forming a relatively complete lake sediment. The Rb / Sr ratios of different sedimentary forms of lake sediments can be used to invert the basin handling and chemical weathering: the non-residual Rb / Sr ratio reflects the chemical weathering of the basin