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本文通过对内蒙古土默特平原北部底界年龄为9100aBP的泥炭剖面所做的70年左右分辨率的定量花粉分析,初步重建了内蒙古中部地区全新世环境变迁序列.结果表明,内蒙古中部地区全新世以来气候变迁主要经历了由凉→温→暖→温→凉的序列,可以划分为5个主要阶段:9100～7400aBP,气候偏干偏冷;7400～5000aBP,气候波动剧烈,属过渡期,气候前期温和偏干旱,后期温和偏湿润;5000～4100aBP,气候温暖湿润;4100～1350aBP,属气候过渡期,气候逐渐趋向干旱,人类影响增大;1350aBP至现在,气候温和半干旱,处在人类强烈干扰之下.且全新世温暖期发生在7400～4100aBP,全新世最适宜期发生在5000～4100aBP期间.
In this paper, the quantitative pollen analysis of 70-year-long resolution of peat profiles at the bottom of the Tumote plain in the northern part of the Tumote Plain in Inner Mongolia has been used to reconstruct the sequence of Holocene environmental changes in the central part of Inner Mongolia. The results show that the Holocene Since climate change mainly experienced by the sequence of cold → warm → warm → warm → cool sequence, can be divided into five main stages: 9100 ~ 7400aBP, partial dry weather colder; 7400 ~ 5000aBP, severe climate fluctuations, is a transitional period, climate Pre-mild drought, the late moderate and humid; 5000 ~ 4100aBP, warm and humid climate; 4100 ~ 1350aBP, belongs to the climate transition period, the climate gradually droughts, human influence increases; 1350aBP now, the climate is mild and semi-arid, in a strong human Under the interference, the Holocene warm period occurred in 7400 ~ 4100aBP and the Holocene most suitable period occurred in 5000 ~ 4100aBP period.