全新世成壤碳酸盐结核和古土壤稳定碳同位素成分可以用于推测古大气ＣＯ２含量,重建古环境条件及使陆相沉积物与海相层序发生关系。由于大洋和大气碳交换的时限较短,因此,土壤碳酸盐中的碳同位素成分保留了大洋ＣＯ２储体的同期变化。然而,时间跨度较大,并且能够提供海相和陆相 Holocene pedo-carbonate and conventional carbon stable isotope compositions can be used to infer paleo-atmospheric CO 2 content, reconstruct paleoenvironmental conditions and link continental sediments with marine sequences. Due to the relatively short time frame of carbon exchange between the ocean and the atmosphere, the carbon isotope composition of the carbonate in the soil retains the same period of change in the oceanic CO2 storage. However, the time span is large and can provide the marine and continental facies