seeKSpace >
中国西部环境和生态科学研究计划 >
2005年资助项目 >
中国西部干旱半干旱区全新世气候变化的集成研究 >
科学论文 >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/2239/46595
|
| Title: | Drought Reconstruction in the Qilian Mountains over the Last Two Centuries and Its Implications for Large-Scale Moisture Patterns |
| Authors: | Liu, Wenhuo(刘文火)
Gou, Xiaohua(勾晓华)
Yang, Meixue(杨梅学)
Zhang, Yong(张永)
Fang, Keyan(方克艳)
Yang, Tao(杨涛)
Jin, Liya(靳立亚) |
| Keywords: | drought variability
tree rings
SST
Qilian Mountains |
| Issue Date: | 2009 |
| Publisher: | 《Advances in Atmospheric Sciences》2009，26（4）：621-629. |
| Abstract: | We present a composite tree-ring chronology from two sites of Qilian Juniper (Sabina przewalskii) in the northwestern Qilian Mountains (QM), Northwestern China. Precipitation in June was found to be the main limiting factor for tree-growth. The tree rings are also significantly and positively correlated with June precipitation over large areas of the northern Tibetan Plateau (TP). The authors thus consider that the treering based drought reconstruction from 1803-2006 is representative of a large area drought history. During the reconstruction period, persistent and severe dry epochs occurred in the 1820s-1830s, 1870s-1880s, 1920s, and 1950s 1960s, and persistent wet periods were found from 1803-1810s, 1890s-1920s, and 1970s-1980s. The severe dry and wet periods are similar to those found over the northeastern TP, indicating the potential linkages of the drought regimes between them. Comparison with global SST indicates that the drought variability is closely related to the tropical Pacific and Arctic Ocean SSTs, suggesting the connection of regional moisture variations to the Asian monsoon and westerly belt circulations, respectively. |
| Description: | Corresponding author: GOU Xiaohua, xhgou@lzu.edu.cn |
| URI: | http://hdl.handle.net/2239/46595 |
| Appears in Collections: | 科学论文
|
Files in This Item:
| File |
Description |
Size | Format |
|---|
| Drought Reconstruction in the Qilian Mountains over the Last Two Centuries and Its Implications for Large-Scale Moisture Patterns.pdf | | 1085Kb | Adobe PDF | View/Open |
|
All items in DSpace are protected by copyright, with all rights reserved.
|
