气候变化领域集成服务门户(CCPortal): 祁连山东部地区高分辨率气候记录研究

CCPortal

	祁连山东部地区高分辨率气候记录研究
其他题名	An analysis of the detailed climatic recorder of the eastern Qilian mountains, China
	勾晓华; 陈发虎; 李金豹; 杨梅学
发表日期	2002
ISSN	0455-2059
卷号	38 期号:1 页码:105-110
中文摘要	利用采自祁连山东部的祁连圆柏树芯样本，建立标准化年表，并将标准年表的树轮指数与采样点附近的天祝乌鞘岭气象站的温度和降水进行响应函数和相关函数分析。结果表明，树轮标准年表序列与当地3～4月份降水成显著正相关，相关系数达0.525，不同检验分析方法均说明，祁连圆柏树轮宽度年表可以用来重建这一地区近280年来的春季降水变化。重建的近280年来研究区少雨春季与毗邻的河西走廊干旱区旱灾的历史记录相吻合，研究还发现，祁连山东部地区春季降水对近100年来全球变暖出现明显的相反响应，春季降水有明显的减少趋势。奇异谱和功率谱分析表明，近300年来研究区春季降水主要有准19a和15a两个显著周期。
英文摘要	Based on the Sabina przewalskii samples obtained in the eastern part of Qilian Mountains, west of China, a standardized tree-ring chronology was established. The correlation and the response function analysis were carried out between the tree-ring index and the temperature as well as the precipitation at Wushaoling Meteorology Station, which is 70 km away from the sampling site. The results showed that the tree-ring index was significantly correlated with the precipitation of March and April, with a coefficient of 0.525. The precipitation of March and April in the studied area was reconstructed for the past 280 years. The statistics have confirmed that the reconstruction series is reliable. The variation of the reconstructed precipitation coincides with the archives recorder of the researched area. It can be seen that the climate has become wetter in the past 280 years. The results of the SSA (singular spectrum analysis) and the power spectrum analysis indicated that there were two main periods of 15 years and 19 years in the variation of the reconstructed spring precipitation.
关键词	祁连山树轮气候学春季降水气候重建
英文关键词	Qilian Mountains;dendroclimatology;spring precipitation;climate reconstruction
语种	中文
WOS研究方向	Geography
WOS类目	GEOGRAPHY
CSCD记录号	CSCD:947104
来源期刊	兰州大学学报. 自然科学版
来源机构	兰州大学 ; 中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/1863
推荐引用方式 GB/T 7714	勾晓华,陈发虎,李金豹,等. 祁连山东部地区高分辨率气候记录研究[J]. 兰州大学, 中国科学院青藏高原研究所,2002,38(1):105-110.
APA	勾晓华,陈发虎,李金豹,&杨梅学.(2002).祁连山东部地区高分辨率气候记录研究.兰州大学学报. 自然科学版,38(1),105-110.
MLA	勾晓华,et al."祁连山东部地区高分辨率气候记录研究".兰州大学学报. 自然科学版 38.1(2002):105-110.