【摘 要】
：
泥河湾盆地侯家窑遗址在中国旧石器文化及古人类演化进程中占有十分重要的地位,但前人研究多集中在古人类及哺乳动物化石及其地层年代方面,对古人类生存时的古气候、古环境研
【机 构】
：
河北师范大学泥河湾考古研究院,河北师范大学资源与环境科学学院,河北工程大学,河北省文物研究所
论文部分内容阅读
泥河湾盆地侯家窑遗址在中国旧石器文化及古人类演化进程中占有十分重要的地位,但前人研究多集中在古人类及哺乳动物化石及其地层年代方面,对古人类生存时的古气候、古环境研究较少,更未见定量研究.本文利用最终筛选后的420个表土和83个地层样品的孢粉数据,采用MAT(modern analogue technique)方法定量重建了泥河湾盆地侯家窑遗址220～85ka B.P.的年均温和年均降水序列.依据孢粉定量重建的气候变化序列与大西洋-太平洋深海氧同位素和南极冰芯记录的MIS 5、MIS 6和MIS 7阶段有较好对应.冰期时,泥河湾盆地的年平均气温比现在低2～4℃,年均降水量比现在多200～400mm;间冰期时,年均气温比现在高约1℃,或与现在相近,年均降水量也与现在相近.冰期时,泥河湾盆地的古气候相对稳定,间冰期时波动频繁.侯家窑古人类生活在大理冰期(MIS 6阶段),气候寒冷湿润,丰富的动植物资源成为侯家窑人的主要食物来源,侯家窑人已学会适应和抵御严寒的气候环境.
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