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本文通过对大布苏泡子第10地点孢粉分析,自下而上划分为二个孢粉组合带:下段(1-2层)Equisetum-Isoites 孢粉带;上段(3-6层)Ranunculaceae-Chenopodiaceae-Artemisia孢粉带。根据孢粉组合带分析了晚全新世中晚期本区泡子周围古地理环境,认为至少发生两次明显变化,即植被从喜湿性蕨类植物占优势的温带湿草甸,向耐干旱、耐盐碱的草本植物为主的草甸草原的转化;气候由湿润到干旱,水体由淡水湖向碱水湖的转化。
Based on the pollen analysis of Dabusuzi at the 10th spot, this paper divided the pollen assemblages from bottom to top: Equisetum-Isoites sporopollen in the lower (1-2) layers; Ranunculaceae- Chenopodiaceae-Artemisia sporopollen. Based on the sporopollen assemblages, the palaeogeomorphic environment around the subfamilies in the late-late Holocene was analyzed, and at least two significant changes were observed, that is, the vegetation changed from temperate wet meadow dominated by hygroscopic ferns to drought- Alkali herbaceous plant-based meadow grassland conversion; climate from humid to drought, water from freshwater lake to alkaline lake conversion.