应用生态学报2012，Vol.23Issue(3)：603-609,7.
云南小中甸地区丽江云杉径向生长对气候变化的响应
Responses of Picea likiangensis radial growth to climate change in the Small Zhongdian area of Yunnan Province, Southwest China
摘要
Abstract
Picea likiangensis (Franch. ) Pritz. primary forest is one of the dominant forest types in the Small Zhongdian area in Shangri-La County of Yunnan Province. In this paper, the responses of P. likiangensis tree-ring width to climate change were analyzed by dendroehronological methods, and the dendrochronology was built by using relatively conservative detrending negative exponential curves or linear regression. Correlation analysis and response function analysis were applied to explore the relationships between the residual chronology series (RES) and climatic factors at different time scales, and pointer year analysis was used to explain the reasons of producing narrow and wide rings. In the study area, the radial growth of P. likiangensis and the increasing air temperature from 1990 to 2008 had definite ' abruption'. The temperature and precipitation in previous year growth season were the main factors limiting the present year radial growth, and especially, the temperature in previous July played a negative feedback role in the radial growth, while the sufficient precipitation in previous July promoted the radial growth. The differences in the temperature variation and precipitation variation in previous year were the main reasons for the formation of narrow and wide rings. P. likiangensis radial growth was not sensitive to the variation of PDSI.关键词
丽江云杉/径向生长/气候变化/树轮年代学/小中甸地区Key words
Picea likiangensis/ radial growth/ climate change/ dendrochronology/ Small Zhongdian area分类
农业科技引用本文复制引用
赵志江,谭留夷,康东伟,刘琪璟,李俊清..云南小中甸地区丽江云杉径向生长对气候变化的响应[J].应用生态学报,2012,23(3):603-609,7.基金项目
国家林业公益性行业科研专项(200804001)资助. （200804001）
