柴达木盆地尕斯库勒湖钻孔中更新世以来的孢粉记录与气候变化
limate change since Mid-Pleistocene revealed by Pollen records from Lake Gas Hure，northwestern Qaidam Basin
本文通过聚类分析法，将柴达木盆地西北缘尕斯库勒湖GSK0305钻孔的1200kaB.P.～9.82kaB.P.期间的孢粉记录划分为8个植被演化阶段，结果表明，1200kaB.P.～754.9kaB.P.期间，气候较稳定，相对干旱，植被覆盖度低；754.9kaB.P.～9.82kaB.P.期间气候波动较大，总体上湿润和干旱交替，植被覆盖度较高。具体表现为754.9kaB.P.～725.3kaB.P.期间，气候冷湿，植被覆盖度高；725.3kaB.P.～584.6kaB.P.气候冷干，植被覆盖度低；584.6kaB.P.～332.6kaB.P.期间气候总体比较适宜，植被覆盖度较高；332.6kaB.P.～141.4kaB.P.期间气候冷干，植被覆盖度低；141.4kaB.P.～59kaB.P.期间气候温和略湿，植被覆盖度较高；59kaB.P.～9.82kaB.P.气候温暖略干，植被覆盖度高。孢粉记录的环境变化的年代和变化特征与本孔的TOC指标的记录有很好的相关性。
In this paper, pollen record of Lake Gas Hure，northwestern Qaidam Basin,is divided into eight stages of vegetation evolution by cluster analysis, during 1200kaBP～9.82kaBP. The results show that, during 1200kaBP～754.9kaBP, the climate was more stable and relatively arid, and vegetation coverage was low; during 754.9kaBP～9.82kaBP the climatic was fluctuant, wet and dry alternately,vegetation coverage was high. Specifically speaking during 754.9kaBP～725.3kaBP the climate was cold and wet, vegetation coverage was high; 725.3kaBP～584.6kaBP climate was cold and dry ,vegetation coverage was low; during 584.6kaBP～332.6kaBP the climate was more appropriate generally, vegetation coverage was higher; during 332.6kaBP～141.4kaBP the climate was cold and dry, vegetation coverage was low; during 141.4kaBP～59kaBP the climate was mild and slightly wet, vegetation coverage was higher; 59kaBP～9.82kaBP the climate was slightly warm and dry, vegetation coverage was high. The age and characteristics of climate change reflected by pollen record were in close relationship with that showed by TOC index record in this core.
祝合勇、杨太保、王江红、刘晓丽
地质学环境科学理论古生物学
柴达木盆地尕斯库勒湖中更新世孢粉记录气候变化
Qaidam BasinLake GasMid-Pleistocenepllen recodlimate change
祝合勇,杨太保,王江红,刘晓丽.柴达木盆地尕斯库勒湖钻孔中更新世以来的孢粉记录与气候变化[EB/OL].(2010-07-05)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/201007-67.点此复制
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