气候变化领域集成服务门户(CCPortal): Combined tree-ring width and delta C-13 to reconstruct snowpack depth: a pilot study in the Gongga Mountain, west China

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DOI	10.1007/s00704-010-0291-x
	Combined tree-ring width and delta C-13 to reconstruct snowpack depth: a pilot study in the Gongga Mountain, west China
	Liu, Xiaohong; Zhao, Liangju; Chen, Tuo; Shao, Xuemei; Liu, Qiao; Hou, Shugui; Qin, Dahe; An, Wenling
发表日期	2011
ISSN	0177-798X
起始页码	133
结束页码	144
卷号	103 期号:1-2
英文摘要	Tree-ring width (TRW) and stable carbon isotope (delta C-13) in tree-ring cellulose of subalpine fir (Abies fabri) were used to develop high-resolution climate proxy data to indicate snow-depth variations in the Gongga Mountain, west China. Tree radial growth- and delta C-13-climate response analyses demonstrated that the TRW and delta C-13 at the timberline (3,400 m.a.s.l.) are mainly influenced by temperature and precipitation of previous growth seasons and current summer (June to August) under cold and humid conditions. Considering the analogous control factors on both tree growth and carbon isotope discrimination (Delta C-13) and snow accumulation, the negative and significant relationships between tree-ring parameters (TRW and Delta C-13) and mean monthly snowpack depth were found. Herein, by combining two tree-ring parameters, a primary snow-depth reconstruction (previous October to current May) over the reliable period A.D. 1880-2004 was estimated. The reconstruction explains 58.0% of the variance in the instrumental record, and in particular captures the longer-term fluctuations successfully. Except the period with extreme higher snowpack depth around 1990, the snowpack depth seems to fluctuate in a normal way. The reconstruction agrees with the nearby snowpack depth record in Kangding and the mean observed snowpack-depth variations of the stations on the Tibetan Plateau, particularly at long-term scales. The snowpack depth in low-frequency fluctuations, during the past century, agrees quite well with the Eastern India precipitation covering the period of previous October-current May. Our results suggest that combing tree-ring width and delta C-13 in certain subalpine tree species growing on the Tibetan Plateau may be an effective way for reconstructing regional snowpack variations.
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158652
作者单位	Liu, XH (corresponding author), Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Donggang W Rd 320, Lanzhou 730000, Peoples R China.
推荐引用方式 GB/T 7714	Liu, Xiaohong,Zhao, Liangju,Chen, Tuo,et al. Combined tree-ring width and delta C-13 to reconstruct snowpack depth: a pilot study in the Gongga Mountain, west China[J],2011,103(1-2).
APA	Liu, Xiaohong.,Zhao, Liangju.,Chen, Tuo.,Shao, Xuemei.,Liu, Qiao.,...&An, Wenling.(2011).Combined tree-ring width and delta C-13 to reconstruct snowpack depth: a pilot study in the Gongga Mountain, west China.THEORETICAL AND APPLIED CLIMATOLOGY,103(1-2).
MLA	Liu, Xiaohong,et al."Combined tree-ring width and delta C-13 to reconstruct snowpack depth: a pilot study in the Gongga Mountain, west China".THEORETICAL AND APPLIED CLIMATOLOGY 103.1-2(2011).