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探讨晚冰期以来猪野泽沉积物中的总有机碳(TOC)、碳氮比(C/N)、有机碳同位素(δ13 C)3种有机地球化学指标与花粉组合之间的相互关系。结果表明,猪野泽沉积物中有机地球化学指标和孢粉组合对环境变化的响应程度不同,3种有机地球化学指标对环境变化的整体趋势反应敏感,孢粉组合适于对细节变化的分析。猪野泽沉积物整个剖面中(除～13.0cal ka BP之前的底部砂层沉积段外)TOC和C/N较低值,δ13 C较高值,对应总花粉浓度较低时期;TOC和C/N较高值,δ13 C较低值,对应总花粉浓度较高时期。
The relationship between TOC, C / N and δ13C organic matter and pollen assemblages in the Porosu Lake sediments was discussed. The results show that the organic geochemical indexes and pollen assemblages in the Xun Nozawa sediments have different responses to environmental changes. Three organic geochemical indicators are sensitive to the overall trend of environmental changes, and the pollen assemblages are suitable for the analysis of the details. The lower TOC and C / N, the higher δ13 C, corresponding to the lower total pollen concentration in the entire section of the porcupine (except for the bottom sediment section before ~ 13.0 ka ka BP), the lower TOC and C / N higher value, δ13 C lower value, corresponding to the higher total pollen concentration period.