干旱区生态环境知识资源中心(Arid): 新疆赛里木湖流域过去373年降水变化的树轮记录

Arid

	新疆赛里木湖流域过去373年降水变化的树轮记录
其他题名	Tree-ring-based precipitation variability over the past 373 years in the Sayram Lake Basin, Tianshan Mountians
	秦莉; 袁玉江; 喻树龙; 范子昂; 尚华明; 陈峰; 张同文; 张瑞波
来源期刊	生态学报
ISSN	1000-0933
出版年	2017
卷号	37 期号:4 页码:1084-1092
中文摘要	利用采自天山西部赛里木湖流域的树木年轮标准化宽度年表,重建了赛里木湖流域过去373年上年8月到当年7月的降水变化,重建序列的解释方差达到,多方验证表明,重建结果是稳定可靠的。分析历史降水变化特征表明,赛里木湖流域过去373年的降水经历了6干7湿的阶段变化,其中,持续最长的干旱阶段为17621791年,而最为干旱的阶段为1841 1865年;持续最长的湿润阶段为17941840年,而最为湿润的阶段为17341761年间;赛里木流域历史降水存在3个极端湿润年(1749,1876和1924年)和4个极端干旱年(1714,1775,1847和1917年),1910年代为最干旱的十年;降水变化存在1112a、3.0a、2.5a、2.1a和2.0a的变化准周期;赛里木湖流域过去373年的降水的阶段变化、周期变化和极端降水年份均与天山北坡中西部和中亚天山山区降水变化具有很好的一致性,本研究的降水重建序列能较好的代表天山北坡中西部和中亚大部分区域历史降水变化。
英文摘要	Tianshan Mountains are an important area for water source ; they are dominated by westerly winds and play an important role in global climate change research. It is vital to understand past precipitation changes and explore their mechanism for the current sustainable utilization of regional water resources. Since the Tianshan Mountains are located in an arid inland area, tree rings are sensitive to climatic moisture status and are a good proxy of past precipitation. In this study, we developed a tree-ring-width chronology of Schrenk spruce (Picea schrenkiana Fisch. et Mey) in the Sayram Lake Basin of the Tianshan Mountians. Climate-growth response results showed that the precipitation from the previous August to current July was the principal limiting factor of radial growth. We also obtained a 373 a reconstruction of August-July precipitation in the Sayram Lake Basin. The reconstruction explained 39.8% of the variance in precipitation records during the 19602009 calibration periods. Additionally, the precipitation over the past 373 a in the Sayram Lake Basin has experienced six drier and seven wetter periods, and the extreme drought years were 1714, 1775, 1847 and 1917; 1917 was the driest year in the past 373 year, and the driest decade was the 1910s. Meanwhile, there was large power in the 11 12 a, 3.0 a,2.5 a, 2.1 a and 2.0 a periods. We suggest that the precipitation variability could be associated with large-scale oscillations in the climate system. The reconstruction illuminates precipitation variability and changes in a region where the climate history over the past several centuries is poorly understood.
中文关键词	赛里木湖 ; 树木年轮 ; 降水 ; 气候变化 ; 天山
英文关键词	Sayram Lake Basin Tree-rings Precipitation Climate change Tianshan Mountians
语种	中文
国家	中国
收录类别	CSCD
WOS类目	BIOLOGY
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:5939616
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/2XILL650/236446
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开放实验室;;新疆树木年轮生态实验室, 乌鲁木齐, 新疆 830002, 中国
推荐引用方式 GB/T 7714	秦莉,袁玉江,喻树龙,等. 新疆赛里木湖流域过去373年降水变化的树轮记录[J]. 中国气象局乌鲁木齐沙漠气象研究所,2017,37(4):1084-1092.
APA	秦莉.,袁玉江.,喻树龙.,范子昂.,尚华明.,...&张瑞波.(2017).新疆赛里木湖流域过去373年降水变化的树轮记录.生态学报,37(4),1084-1092.
MLA	秦莉,et al."新疆赛里木湖流域过去373年降水变化的树轮记录".生态学报 37.4(2017):1084-1092.