太白山三清池湖泊沉积记录的全新世气候变化及周期讨论

doi:10.18307/2016.0424

CORC > 北京大学 > 城市与环境学院

	太白山三清池湖泊沉积记录的全新世气候变化及周期讨论; Holocene environmental change and climatic periodicities recorded from the lacustrian sediments in the Sanqing Chi section, Taibai Mountain
	宋雅琼 ; 罗耀 ; 李双成 ; 王红亚
刊名	湖泊科学
	2016
关键词	太白山三清池全新世小波分析周期波动气候变化 Taibai Mountain Sanqing Chi Holocene wavelet analysis climatic periodicity climatic change
DOI	10.18307/2016.0424
英文摘要	通过对太白山三清池湖泊沉积柱芯的低频磁化率(xlf)、频率磁化率(xfd)、总有机碳(TOC)、粒度参数指标的时序序列进行小波分析,探讨太白山全新世气候变化过程及周期波动性.结果显示:中、晚全新世太白山气候变化具有明显的阶段性特征;千年尺度上,xlf 、xfd、TOC和平均粒径参数序列反映的主周期分别为1427、1427、1427和1452 a,晚全新世5410 cal aB.P.距今期间存在8次显著的冷暖交替震荡;在百年尺度上,xlf 、xtd、TOC和平均粒径参数序列还揭示出分别以492、492、467和467 a为周期的次一级变化,且整体上经历近似10次的短期冷暖波动.此外,以上结果与全球范围内全新世气候周期有着较好的一致性,表明我国东部高海拔地区在千年和百年尺度上,对全新世气候振荡同样具有相似的响应.; With wavelet analysis, the Holocene environmental change and climatic periodicity in Taibai Mountain are analyzed based on multiple paleoclimatic proxy analysis (��lf, ��fd, TOC and grain size) in the lake sediments from Sanqing Chi section. The results show obvious gradual characteristic in the periodicities and environmental change of Taibai Mountain. On a longer timescale, there is the a millennial-scale variability of Holocene climate with periodicities of 1427 a in ��lfsequence, 1427 a in ��fdsequence, 1427 a in TOC sequence, and 1452 a in mean particle size sequence. 8 times of significant climate shifts are examined in ��lfsequence since 5410 cal aB.P.. On a centennial scale, periodicities of 492 a, 492 a, 467 a, 467 a are identified in ��lf, ��fd, TOC and grain size, respectively, indicating 10 times climatic oscillation since 5410 cal aB.P.. The consistency in Holocene climatic periodicity between Taibai Mountain and other regions in the world shows that the environmental response to Holocene climatic oscillation also exists at high attitude area in eastern China. ? 2016 by Journal of Lake Sciences.; 国家自然科学基金项目; EI; 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 4; 899-908; 28
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/494821]
专题	城市与环境学院
推荐引用方式 GB/T 7714	宋雅琼,罗耀,李双成,等. 太白山三清池湖泊沉积记录的全新世气候变化及周期讨论, Holocene environmental change and climatic periodicities recorded from the lacustrian sediments in the Sanqing Chi section, Taibai Mountain[J]. 湖泊科学,2016.
APA	宋雅琼,罗耀,李双成,&王红亚.(2016).太白山三清池湖泊沉积记录的全新世气候变化及周期讨论.湖泊科学.
MLA	宋雅琼,et al."太白山三清池湖泊沉积记录的全新世气候变化及周期讨论".湖泊科学 (2016).