• 责任者：Tian Qinhua (Chinese Academy of Meteorological Sciences ; Beijing 100081 ; China) ; Zhou Xiuji
• 刊名：Quaternary Sciences
• 出版年：2011
• 卷期：31(5)
• 关键词：年轮 ; tree rings ; 古温度 ; paleotemperature ; 秦岭 ; Qinling Mountains
• 页码：p.864-872
• 图表：6 illus., 3 tables, 45 refs.
• 分类号：1400
• issnNo：ISSN1001-7410
• isbnNo：CN11-2708/P

Tree-ring chronologies from five sites in the middle-east part of the Qinling Mountains were analyzed for regional common information using principal component analysis (PCA) method. The first PC (PC1) explained the most (58.37heme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: ’Times New Roman’">％heme-font: minor-latin"> )of the total variances of the five site chronologies, and hence represented a regional pattern of tree growths. Correlations of meteorological records and the PC1 chronology with May-July grided temperature data (Climatic Research Unit, CRU) were calculated to investigate if they were capable of representing regional large-scale temperature variability during 1951~2006.  The authors thus consider that the PC1 chronology from 1885~2006 was representative of a large area temperature history. The result indicated that the higher SST of the above ocean domains, possibly the lower PC1 and the higher temperature of QMHB region.hemas-microsoft-com:office:office" />