干旱区生态环境知识资源中心(Arid): 腾格里沙漠南缘近315年5~6月PDSI指数变化

Arid

	腾格里沙漠南缘近315年5~6月PDSI指数变化
其他题名	Reconstruction of May-June Palmer Drought Severity Index at South Margin of Tengger Desert, China Since A.D.1691
	陈峰; 袁玉江; 魏文寿; 喻树龙; 张瑞波; 范子昂; 张同文; 尚华明; 李杨
来源期刊	地理科学
ISSN	1000-0690
出版年	2011
卷号	31 期号:4 页码:434-439
中文摘要	利用昌灵山早材宽度年表重建腾格里沙漠南缘在过去315 a的5~6月份PDSI指数变化,重建方程的方差解释量达42.0%.腾格里沙漠南缘5~6月的PDSI指数重建序列平均值为-0.32.腾格里沙漠南缘5~6月的PDSI指数重建序列对西北地区干旱极端历史事件有良好的响应.空间分析显示腾格里沙漠南缘5~6月的PDSI指数重建序列与亚洲季风尾闾区PDSI指数的变化比较一致,同时还与西北地区的多条PDSI指数重建序列有着良好的相关性.腾格里沙漠南缘5~6月的PDSI指数重建序列具有25 a(95%),12 a(95%),3.4 a(99%),2.8 a(99%),2.6 a(99%),2.3 a(95%)的周期变化
英文摘要	We presented a drought reconstruction for the northern central China based on the earlywood width chronology developed from one site of Pinus tabulaeformis at South Margin of Tengger Desert, China. The drought reconstruction in 1691-2005 was developed by calibrating tree-ring data with the Palmer Drought Severity Index(PDSI), which is used to describe the regional moisture condition properly. The reconstruction was verified with the independent data, and accounted for 42.0% of the actual PDSI variance during their common period(1960-2005).The mean PDSI over the 1691-2005 period was estimated at-0.32.The full reconstruction indicated that the regional drought variability was variable and persistent. The comparison between the reconstructed PDSI and historical archives and other reconstructions was conducted based on tree-ring in Northwest China. The results revealed common climatic extremes and change over much of Northwest China. Many of these events have had profound impacts on human being over the past several centuries. The drought epoch in the late 1920s was the most severe one in our reconstruction. The wet epochs in the 1730s and the 1750s were the wettest in our reconstruction. Spatial correlations between the PDSI 5-6 reconstruction and the girded PDSI dataset showed that the reconstruction varied indifferent areas;which were affected by the Asian monsoon. The multitaper method(MTM) spectral analysis indicated that there are 6 periodic change of 25 a(95%),12 a(95%),3.4 a(99%),2.8 a(99%),2.6 a(99%),2.3 a(95%), which is similar with the PDSI reconstructions at East Margin of Tengger Desert and South Margin of Badain Jaran Desert
中文关键词	腾格里沙漠 ; 树轮早材宽度 ; PDSI指数重建
英文关键词	Tengger Desert tree-ring earlywood width PDSI reconstruction
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:4182577
来源机构	中国气象局乌鲁木齐沙漠气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226260
作者单位	中国气象局乌鲁木齐沙漠气象研究所, 中国气象局树木年轮理化研究重点实验室;;新疆维吾尔自治区树木年轮生态重点实验室, 乌鲁木齐, 新疆 830002, 中国
推荐引用方式 GB/T 7714	陈峰,袁玉江,魏文寿,等. 腾格里沙漠南缘近315年5~6月PDSI指数变化[J]. 中国气象局乌鲁木齐沙漠气象研究所,2011,31(4):434-439.
APA	陈峰.,袁玉江.,魏文寿.,喻树龙.,张瑞波.,...&李杨.(2011).腾格里沙漠南缘近315年5~6月PDSI指数变化.地理科学,31(4),434-439.
MLA	陈峰,et al."腾格里沙漠南缘近315年5~6月PDSI指数变化".地理科学 31.4(2011):434-439.