Construction and Application of Phytolith-Climate Transfer Function in Peat Surface Deposits of Northeast China
详细信息
- 责任者：Zhang Xinrong （College of Earth Sciences ; Jilin University ; Changchun 130061 ; China） ; Hu Ke
- 刊名：Acta Sedimentologica Sinica
- 出版年：2008
- 卷期：26(4)
- 关键词：泥炭 ; peat ; 气候 ; climate ; 东北地区 ; North East China
- 页码：p.676-682
- 图表：3 illus., 24 refs.
- 分类号：1400
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
On the basis of phytolith assemblages from peat surface deposits and some climate indexes, a transfer function of phytolith-climate in Northeast China is established by means of factorial analysis and stepwise regression. Using the function, paleo-climate parameters of Yunshu peat profile were calculated and the paleo-climate evolution is then divided into 7 stages: warm-cold-warm-clod-warm-cold-warm. The reconstructed curves also show that the changes of paleo-annual wind speed might indicate the following changes of paleo-temperature and paleo-precipitation, and the warm and wet climate always corresponds with a stable climate system.