| 吉林辉南二龙湾玛珥湖12.0ka B.P.以来孢粉记录与气候变化 |
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| 引用本文： | 刘玉英,刘嘉麒,汉景泰.吉林辉南二龙湾玛珥湖12.0ka B.P.以来孢粉记录与气候变化[J].吉林大学学报(地球科学版),2009,39(1). |
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| 作者姓名： | 刘玉英 刘嘉麒 汉景泰 |
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| 作者单位： | 1. 吉林大学,应用技术学院,长春,130022;吉林大学,地球科学学院,长春,130061
2. 中国科学院,地质与地球物理研究所,北京,100029 |
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| 基金项目： | 中国科学院知识创新工程重要方向性项目 |
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| 摘 要： | 东北二龙湾玛珥湖孢粉记录显示,12.0 ka B.P.以来,该区植被和气候经历了以下变化:11.76～9.81 ka B.P. 发育针阔叶混交林,气候冷干.9.81～4.11 ka B.P.为落叶阔叶林植被景观,前期(9.81～8.86 ka B.P.)温干,为增温期;后期(8.86～4.11 ka B.P.)暖湿,为气候适宜期.4.11 ka B.P.至今,再次发育针阔叶混交林, 其中1.62 ka B.P.以前,气候温凉;之后湿度下降,气候凉干.研究表明:YD(11.56～10.21 ka B.P.)事件在二龙湾玛珥湖孢粉资料中有突出记录,4.0 ka B.P.左右开始的降温现象在东北东部地区广泛出现.
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| 关 键 词： | 孢粉记录 古气候 新仙女木事件 二龙湾玛珥湖 |
Pollen Record and Climate Changing Since 12.0 ka B.P.in Erlongwan Maar Lake,Jilin Province |
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| LIU Yu-ying,LIU Jia-qi,HAN Jing-tai.Pollen Record and Climate Changing Since 12.0 ka B.P.in Erlongwan Maar Lake,Jilin Province[J].Journal of Jilin Unviersity:Earth Science Edition,2009,39(1). |
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| Authors: | LIU Yu-ying LIU Jia-qi HAN Jing-tai |
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| Institution: | LIU Yu-ying1,2,LIU Jia-qi3,HAN Jing-tai31.College of Applied Technique,Jilin University,Changchun 130022,China2.College of Earth Sciences,Changchun 130061,China3.Institute of Geology , Geophysics,Chinese Academy of Sciences,Beijing 100029,China |
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| Abstract: | A vegetation-environment history has been reconstructed according to the pollen characte-ristics of Erlongwan Maar lake since the last 12.0 ka B.P..During 11.76-9.81 ka B.P.,there is conifer/broad-leaved forest,and climate is cold and dry.Between 9.81-4.11 ka B.P.,the vegetation in this region is broad-leaved forest,which indict tepid and dry climate in first stage(9.81-8.86 ka B.P.) and warm,humid climate in late stage(8.86-4.11 ka B.P.).After 4.11 ka B.P.,there developed conifer/ broad-leaved forest again... |
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| Keywords: | pollen record paleoclimate Younger Dryas Erlongwan Maar lake |
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