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中国黄土分布广泛、沉积连续性好 ,是进行磁性地层研究和重建古环境、恢复古气候的理想材料。中国黄土高原黄土—古土壤序列的环境岩石磁学性质详细地记录了 2 .5Ma BP以来古气候和古环境变化的信息 ,尤其是黄土和古土壤的磁化率作为很好的气候代用指标已得到广泛应用。古土壤磁化率增强成因机制一直在争论中 ,其中 ,与气候变化关系密切的成壤作用对古土壤磁化率增强起主导作用的观点已被普遍接受 ,目前利用不同方法建立了磁化率气候转换函数 ,从而使重建古降水量和古温度成为可能。
The loess is widely distributed in China and has good continuity of sedimentation. It is an ideal material for magnetic stratum research and reconstruction of paleoenvironment and restoration of paleoclimate. Environmental Rock Magnetic Properties of Loess-Paleosol Sequences in China’s Loess Plateau Detailedly recorded information on paleoclimatic and paleoenvironmental changes since 2.5 Ma BP, in particular, the susceptibility of loess and paleosol to good proxy climatic proxy widely used. The mechanism of magnetic susceptibility enhancement in paleosol has been debated. Among them, it is widely accepted that the pedogenesis of climatic change, which is closely related to climate change, has played an important role in the enhancement of susceptibility of paleosol. At present, different methods are used to establish the susceptibility to climate change , Thus making it possible to rebuild paleo-precipitation and paleo-temperature.