下辽河平原全新世孢粉组合与古气候演化研究  

The Holocene Sporopollen Assemblages and Paleoclimate Evolution in the Lower Liaohe Plain

作　　者：王秀玲[1] 介冬梅[2] 李瑛[1] 

机构地区：[1]南京大学地理与海洋科学学院,南京210093 [2]东北师范大学城市与环境科学学院,长春130024

出　　处：《河南科学》2010年第7期794-798,共5页Henan Science

基　　金：国家自然科学基金项目(40201052)

摘　　要：通过对下辽河滨海平原区田家镇LT钻孔样品不同种属孢粉所占的数量百分比进行分析,将柱状样划分了7个孢粉组合带.根据各孢粉带的不同孢粉组合特征,利用对应分析方法以及在14C测年技术的支持下,重建了该地区全新世以来以温湿—暖湿—湿热—冷干—暖湿—凉干为特征的古气候演化序列.LT drilling core is in Tianjiazhen of the Lower Liaohe coastal plain. The pollen combinations are different in the cylindrical samples and seven pollen assemblance zones are divided. By using the correspondence analysis method as well as in the support of 14C dating,the Holocene paleoclimatology evolution sequence is reconstructed. The stages of paleoclimate are as follows： the early Holocene is warm-wet, the mid-Holocene is hot-wet, and the late Holocene is cool-dry. And there is short-term cold-dry climate in the period of mid-Holocene.

关 键 词：下辽河平原 全新世 孢粉分析 古气候演化 

分 类 号：P53[天文地球—古生物学与地层学]