QQ客服 官方微博 反馈留言

	Reconstruction of precipitation variation from tree rings in recent 1000 years in Delingha, Qinghai
	Huang L.; Huang L.
	2005
关键词	northeastern part of the Qaidam Basin tree-ring width series of Qilian juniper precipitation reconstruction in 1000 years last millennium temperature variability climate
英文摘要	Using seven well-replicated Qilian juniper (Sabina przewalskii Kom.) ring-width chronologies developed at Zongwulong and Shalike Mts. in the northeastern part of the Qaidam Basin annual precipitation from previous July to current June in the recent 1000 years was reconstructed for Delingha. The reconstruction can capture 63.1 % of precipitation variance and the equation was stable over time. For the reconstructed precipitation, wet periods occurred in AD1520-1633 and 1933-2001, whereas dry intervals in 1429-1519 and 1634-1741. In addition, the magnitude in precipitation variation was lower before 1430 with about 15 mm, but it increased to 30 mm during the period of 1430 to 1850. After 1850, the precipitation variance decreased again. In contrast to the increase in temperature, a decrease in annual precipitation was evident since the 1990s. The agreement in low-frequency variation between the reconstruction and the glacier accumulation and particulate content in Dunde ice cores during the recent several hundred years suggested that the precipitation reconstructed in this study was rather reliable, and represented a regional signal. This 1000-year reconstruction could benefit our understanding of climatic variation in decadal to century-scale in this region, and provide basic data to climate models and to prediction of future climate in the 21st century.
出处	Science in China Series D-Earth Sciences
卷	48
期	7
页	939-949
收录类别	SCI
语种	英语
ISSN号	1006-9313
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/23116]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Huang L.,Huang L.. Reconstruction of precipitation variation from tree rings in recent 1000 years in Delingha, Qinghai. 2005.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。