华东师范大学学报(自然科学版) ›› 2007, Vol. 2007 ›› Issue (4): 71-76.

• 地理学 河口海岸学 • 上一篇    下一篇

近300年来植硅体记录的巢湖流域气候变化

范 斌1,2，许世远1，俞立中1，蒋 辉1，张卫国1，戴雪荣1

  

  1. 1. 华东师范大学 地理信息科学教育部重点实验室,上海 200062；2. 重庆师范大学 旅游学院,重庆 400047
  • 收稿日期:2006-03-01 修回日期:2006-04-20 出版日期:2007-07-25 发布日期:2007-07-25
  • 通讯作者: 许世远

Study on the Climate Changes Recorded in the Sediment of the Caohu Lake during the Last 300 Years(Chinese)

FAN Bin1,2, XU Shi-yuan1, YU Li-zhong1, JIANG Hui1, ZHANG Wei-guo1, DAI Xue-rong1
   

  1. 1. Key Laboratory of Geographic Information Science, Ministry of Education, East China Normal University, Shanghai 200062, China; 2.School of Tourism, Chongqing Normal University, Chongqing 420047, China
  • Received:2006-03-01 Revised:2006-04-20 Online:2007-07-25 Published:2007-07-25
  • Contact: XU Shi-yuan

摘要： 通过对巢湖AC2钻孔植硅体化石的系统研究，划分出3个植硅体组合带.并根据各植硅体组合带主要成分所反映的气候特征，结合主成分分析法（PCA），重构了该区近300 a来的气候与环境变化.巢湖流域近300 a来气候划分为2个相对温暖时期（1710 s—1780 s；1890 s—1970 s）、1个相对寒冷时期（1780 s—1890 s）和1个增温阶段（1970 s—2003）.与前人利用合肥地区的历史文献和长江中下游地区气象站的器测资料得出该区的气候变化进行了对比分析.

关键词: 巢湖, 植硅体, 气候变化, 巢湖, 植硅体, 气候变化

Abstract: According to systematic research on the phytolith fossils in the sediment of core AC2 from the Caohu Lake, three phytoliths zones were divided. Based on changes in the main components in the phytolith zones and principal components analysis, the evolution of paleoenvironment and paleoclimate in the past 300 years was reconstructed. There are two warm periods（1770 s—1780 s；1890 s—1970 s ）, one cold period（1780 s—1890 s）and one warming stage（1970 s—2003）in the last 300 years. The environment changes of each period in the Caohu lake area were further discussed, compared with the climate changes of the historical documents and instrumental data of Hefei and the mid-lower reaches of the Yangtze River.

Key words: phytolith, climate change, Caohu lake, phytolith, climate change

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