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临沂商品城剖面记录了末次冰消期至中全新世沂河中游的气候环境变化,其地球化学元素的古环境意义显著。分析表明末次冰消期至中全新世沂河中游的古气候环境经历了5个阶段:(1)16866～13630cal a B.P.气候回暖但仍以冷湿为主;(2)13630～10440cal a B.P.气候变冷变干,并记录到了YD气候事件;(3)10440～8670cal a B.P.暖湿气候显著;(4)8670～6420cal a B.P.冷暖波动仍以暖湿为主;(5)6420～4698cal a B.P.稳定的暖干气候环境。
The profile of Linyi Commodity City records the climatic and environmental changes from the last ice age to middle reaches of the Middle Holocene in the middle Holocene. The paleoenvironmental significance of geochemical elements is remarkable. The analysis shows that the paleoclimate environment of the middle reaches of the middle Miocene Yihe has experienced five phases: (1) 16866 ~ 13630 cal a BP climate is warm but still cold and wet; (2) 13630 ~ 10440 cal BP climate Chilled and dry, and recorded YD climatic events; (3) 10440 ~ 8670cal a BP warm and humid climate significant; (4) 8670 ~ 6420cal a BP warm and humid fluctuations are still warm; (5) 6420 ~ 4698cal a BP Stable warm dry climate environment.