Tree Ring Based Mean Maximum Temperature Reconstruction for the Congnaisi Region on the Southern Slope of the Central Tienshan Mountains China
详细信息
- 责任者：Zhang Tongwen (State Key Laboratory of Loess and Qunternary Geology ; lnstitute of Earth ; Environment ; Chinese Academy of Sciences ; Xi’an 710075 ; China) ; Liu Yu
- 刊名：Quaternary Sciences
- 出版年：2011
- 卷期：31(6)
- 关键词：全新世 ; Holocene ; 年轮 ; tree rings ; 温度 ; temperature ; 天山 ; Tianshan Mountains
- 页码：p.1011-1021
- 图表：8 illus., 6 tables, 76 refs.
- 分类号：1400
- issnNo：ISSN1001-7410
- isbnNo：CN11-2708/P
摘要
The Congnaisi region is located on the southern slope of the Central Tianshan Mountains in Xinjiang. Based on the tree-ring data analysis, mean maximum temperature from May to August of the Congnaisi region from 1777 to 2008 A.D. has been reconstructed by the tree-ring average gray values. The power spectrum analysis shows that there are 154-, 77-, 2.7- and 2.3-years cycles in the reconstruction, which may be associated with solar activity and quasi-biennial oscillation (QBO). The moving t-test indicates that the significant abrupt changes were presented in about 1842 A.D., 1880 A.D. and 1923 A.D.