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题名: Tree-ringbased drought reconstruction (a.d. 1855-2001) for the Qilian mountains, northwestern China
作者: Tian, Q; Gou, XH(勾晓华); Zhang, Y; Peng, JF; Wang, JS; Chen, T
收录类别: SCIE ; BIOSIS
出版日期: 2007
刊名: TREE-RING RESEARCH
卷号: 63, 期号:1, 页码:27-36
出版者: TREE-RING SOCIETY
出版地: TUCSON
英文摘要: A juniper (Juniperus przewalskii Kom) tree-ring width chronology has been developed from the west-ernmost forest of the Qilian Mountains. Our analyses demonstrate both temperature and precipitation have significant effects on tree growth and that both should be considered in climate reconstruction. Thus a regional drought history (A.D. 1855-2001) is reconstructed by calibrating with a linear interpolation through four Palmer Drought Severity Index (PDSI) grid values nearest the sampling site. Our reconstruction extends the drought history of this area and also reveals that the most severe drought occurred in the 1920s. In the context of the drought history of western China. this extreme drought between 1925-1931 is consistent over a large surrounding region of Northwestern China. Multi-taper spectral analysis reveals the existence of significant 40- to 46-year, 29-year, and 2.1- to 3-year periods of variability. Overall, our study provides reliable information for the research of past drought variability in the Qilian Mountains, Northwestern China.
关键词: dendrochronology ; drought reconstruction ; Qilian Mountains
作者部门: Lanzhou Univ, CAEP, Key Lab W Chinas Environm Syst MOE, Lanzhou 730000, Peoples R China ; Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China ; Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China ; Acad Sinica, Grad Sch, Beijing 100039, Peoples R China
通讯作者: Gou, XH (reprint author), Lanzhou Univ, CAEP, Key Lab W Chinas Environm Syst MOE, Lanzhou 730000, Peoples R China.
学科分类: Forestry
文章类型: Article
语种: 英语
DOI: 10.3959/1536-1098-63.1.27
ISSN号: 1536-1098
WOS记录号: WOS:000247897700003
BIOSIS记录号: BIOSIS:PREV200700547769
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/119736
Appears in Collections:资源环境学院_期刊论文

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Recommended Citation:
Tian, Q,Gou, XH,Zhang, Y,et al. Tree-ringbased drought reconstruction (a.d. 1855-2001) for the Qilian mountains, northwestern China[J]. TREE-RING RESEARCH,2007,63(1):27-36.
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