«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第32卷

期数:

2010年第04期

页码:

420-429

栏目:

水资源与环境

出版日期:

2010-12-20

文章信息/Info

Title:

Time-frequency Analysis on Palaeoclimate Recorded by Phytolith at the Late Holocene Peat Deposits in Dunhua Basin

文章编号:

1672-6561(2010)04-0420-10

作者:

张新荣¹; 2; 方石¹; 2; 胡克³; 王东坡¹

(1. 吉林大学 地球科学学院,吉林 长春 130061; 2. 吉林大学 东北亚生物演化与环境教育部重点实验室, 吉林 长春 130026; 3. 中国地质大学 海洋学院,北京 100083)

Author(s):

ZHANG Xin-rong¹; 2;  FANG Shi¹; 2;  HU Ke³;  WANG Dong-po¹

(1. School of Earth Sciences, Jilin University, Changchun 130061, Jilin, China; 2. Key Laboratory for Evolution of PastLife and Environment in Northeast Asia of Ministry of Education, Jilin University, Changchun 130026, Jilin, China; 3.School of Ocean Sciences, China University of Geosciences, Beijing 100083, China)

关键词:

植硅体; 泥炭沉积; Morlet; 小波变换; 古气候; 全新世; 敦化盆地

Keywords:

phytolith;  peat deposit;  Morlet;  wavelet transform;  palaeoclimate;  Holocene;  Dunhua Basin

分类号:

P532

DOI:

-

文献标志码:

A

摘要:

沉积地层中古气候参数的多层次性以及解释过程中的人为性使古气候重建结果带有一定的误差。采用Morlet一维连续小波变换对敦化盆地吉祥和榆树剖面中植硅体记录的古气候参数进行时频分析,探讨植硅体反演的古气候变化过程。结果表明,吉祥剖面在频率域尺度a≥30时的小波变换系数波谱及能量变化与榆树剖面在a≥20时存在相似性,且均具有6个不同能量聚集区域,因此把敦化盆地晚全新世以来的古气候变迁分为6个阶段:公元前730年以前为温暖降温期;公元前730—公元前205年为温和湿润并逐渐变凉时期;公元前205—公元255年为温暖时期;公元255—525年为降温变冷时期;公元525—1220年为温暖湿润时期;公元1220年以来进入气候波动比较频繁时期。Morlet一维连续小波变换可以有效处理古气候信息的叠加,减小人为性分析带来的误差,在古气候分析中具有很大应用潜力。

Abstract:

Diversity of palaeoclimate parameters in sedimentary stratigraphy and its artificiality in interpretation process bring some inevitable errors. Based on Morlet one-dimensional continue wavelet transform, palaeoclimate parameters recorded by phytolith at Jixiang and Yushu profiles in Dunhua Basin were analyzed by time-frequency, change of palaeo-climat was discussed. The results showed that the wavelet spectrum and energy change at Jixiang profile with no less than 30 frequency scales were similar with that at Yushu profile with no less than 20 frequency scales, and both profiles had six different energy aggregation regions. Changes of palaeoclimate since the Late Holocene in Dunhua Basin was divided into six stages: before BC 730, warm and cooling period; BC 730-BC 205, mild, humid, and gradually cooling period; BC 205-AD 255, warm period; AD 255-525, cooling period; AD 525-1220, warm and humid period; after AD 1220, a stage with more frequent fluctuations. Morlet one-dimensional continue wavelet transform could deal with the superposition of palaeoclimate records effectively and reduce the artificial error, enjoy huge potential for application in palaeoclimate research.

参考文献/References:

[1] 赵军龙,谭成仟,李 娜,等.小波分析在高分辨率层序地层研究中的应用[J].地球科学与环境学报,2007,29(1):90-94.
[2] 李建平.小波分析与信号处理——理论、应用及软件的实现[M].重庆:重庆出版社,1997.
[3] Debret M,Sebag D,Crosta X,et al.Evidence from Wavelet Analysis for a Mid-Holocene Transition in Global Climate Forcing[J].Quaternary Science Reviews,2009,28(25/26):2675-2688.
[4] 孙然好,潘保田,牛最荣,等.河西走廊近50年来地表水资源时间序列的小波分析[J].干旱区地理,2005,28(4):455-459.
[5] Heslop D,Dekkers M J,Langereis C G.Timing and Structure of the Mid-Pleistocene Transition:Records from the Loess Deposits of Northern China[J].Palaeogeography,Palaeoclimatology,Palaeoecology,2002,185(1/2):133-143.
[6] Doner L.Late-Holocene Paleoenvironments of Northwest Iceland from Lake Sediments[J].Palaeogeography,Palaeoclimatology,Palaeoecology,2003,193(3/4):535-560.
[7] Rousse S,Kissel C,Laj C,et al.Holocene Centennial to Millennial-scale Climatic Variability:Evidence from High-resolution Magnetic Analyses of the Last 10 cal kyr off North Iceland(Core MD99-2275)[J].Earth and Planetary Science Letters,2006,242(3/4):390-405.
[8] Prasad S,Witt A,Kienel U,et al.The 8.2 ka Event:Evidence for Seasonal Differences and the Rate of Climate Change in Western Europe[J].Global and Planetary Change,2009,67(3/4):218-226.
[9] Sicre M A,Yiou P,Eiríksson J,et al.A 4500-year Reconstruction of Sea Surface Temperature Variability at Decadal Time-scales off North Iceland[J].Quaternary Science Reviews,2008,27(21/22):2041-2047.
[10] Patterson R T,Prokoph A,Reinhardt E,et al.Climate Cyclicity in Late Holocene Anoxic Marine Sediments from the Seymour-Belize Inlet Complex,British Columbia[J].Marine Geology 2007,242(1/3):123-140.
[11] Blackford J.Palaeoclimatic Records from Peat Bogs[J].Trends in Ecology and Evolution,2000,15(5):193-198.
[12] Bakels C C.Pollen Diagrams and Prehistoric Fields:the Case of Bronze Age Haarlem,the Netherlands[J].Review of Palaeobotany and Palynology,2000,109(3/4):205-218.
[13] Barber K E,Chambers F M,Maddy D.Holocene Palaeoclimates from Peat Stratigraphy:Macrofossil Proxy Climate Records from Three Oceanic Raised Bogs in England and Ireland[J].Quaternary Science Reviews,2003,22(5/7):521-539.
[14] Blackford J J,Chambers F M.Proxy Climate Record for the Last 1000 Years from Irish Blanket Peat and a Possible Link to Solar Variability[J].Earth and Planetary Science Letters,1995,133(1/2):145-150.
[15] Lageard J G A,Chambers F M,Thomas P A.Recording and Reconstruction of Wood Macrofossils in Three-dimensions[J].Journal of Archaeological Science,1995,22(4):561-567.
[16] Blundell A C,Barber K E.A 2800-year Palaeoclimatic Record from Tore Hill Moss,Strathspey,Scotland:the Need for a Multi-proxy Approach to Peat-based Climate Reconstructions[J].Quaternary Science Reviews,2005,24(10/11):1261-1277.
[17] 洪业汤,刘东生,姜洪波,等.太阳辐射驱动气候变化的泥炭氧同位素证据[J].中国科学:D 辑,1999,29(6):527-531.
[18] 洪业汤,洪 冰,林庆华,等.过去5000 年西太平洋副热带高压活动的泥炭纤维素碳同位素记录[J].第四纪研究,2003,23(5):485-492.
[19] Menot-Combes G,Burns S J,Leuenberger M.Variations of ¹⁸O/¹⁶O in Plants from Temperate Peat Bogs(Switzerland):Implications for Paleoclimatic Studies[J].Earth and Planetary Science Letters,2002,202(2):419-434.
[20] Xie S,Nott C J,Avsejs L A,et al.Palaeoclimate Records in Compound-specific δ(D)Values of a Lipid Bio-marker in Ombrotrophic Peat[J].Organic Geochemistry,2000,31(10):1053-1057.
[21] Ortiz J E,Torres T,Delgado A,et al.The Palaeoenvironmental and Palaeohydrological Evolution of Padul Peat Bog(Granada,Spain)over One Million Years,from Elemental,Isotopic and Molecular Organic Geo-chemical Proxies[J].Organic Geochemistry,2004,35(11/12):1243-1260.
[22] 李智佩,岳乐平,郭 莉,等.全新世气候变化与中国北方沙漠化[J].西北地质,2007,40(3):1-29.
[23] Lu H Y,Wu N Q,Yang X D,et al.Phytoliths as Quantitative Indicators for the Reconstruction of Past Environmental Conditions in China I:Phytolith-based Transfer Functions[J].Quaternary Science Reviews,2006,25(9/10):945-959.
[24] 张新荣,胡 克,介冬梅,等.泥炭沉积中植硅体对环境指示的意义——以吉林敦化泥炭剖面为例[J].吉林大学学报:地球科学版,2005,35(6):694-698.
[25] Iriarte J,Paz E A.Phytolith Analysis of Selected Native Plants and Modern Soils from Southeastern Uruguay and Its Implications for Paleoenvironmental and Archeological Reconstruction[J].Quaternary International,2009,193(1/2):99-123.
[26] 张新荣,胡 克,刘莉莉.吉林敦化地区全新世泥炭沉积中植硅体分析[J].微体古生物学报,2005,22(2):202-207.
[27] 张新荣,胡 克,王东坡.东北地区泥炭表土中植硅体的形态特征[J].地理科学,2007,27(6):831-836.
[28] 张新荣,胡 克,方 石,等.东北地区泥炭表层沉积中植硅体分布特征[J].吉林大学学报:地球科学版,2007,37(5):895-900.
[29] 张新荣,胡 克,王东坡.东北泥炭表土沉积植硅体-气候因子转换函数建立及应用[J].沉积学报,2008,26(4):676-682.
[30] 程炳岩,王记芳,孙卫国.河南省月平均气温变化的时频分析[J].气象科技,2004,32(增刊):1-4.
[31] Morlet J,Arens G,Fourgeau E,et al.Wave Propagation and Sampling Theory Part I:Complex Signal and Scattering in Multilayered Media[J].Geophysics,1982,47(2):203-221.
[32] Morlet J,Arens G,Fourgeau E,et al.Wave Propagation and Sampling Theory-partⅡ:Complex Signal and Scattering in Multilayered Media[J].Geophysics,1982,47(2):222-236.
[33] 纪跃波,秦树人,汤宝平.基于多分辨分析的时频分析[J].振动与冲击,2002,21(1):12-15.
[34] Meyers S D,Kelly B G,Brien J J O.An Introduction to Wavelet Analysis in Oceanography and Meteorology:with Application to the Dispersion of Yannai Waves[J].Monthly Weather Review,1993,121(10):2858-2866.
[35] 林振山,卞维林,金 龙,等.中国旱涝史料的层次分析[J].气象学报,1999,57(1):112-120.

相似文献/References:

备注/Memo

备注/Memo:

收稿日期:2010-01-07
基金项目: 国家自然科学基金项目(40702027; 40830107; 40902057)
作者简介: 张新荣(1975-),女,河北景县人,副教授,理学博士,从事沉积学及第四纪地质学研究。E-mail:zhangxr@jlu.edu.cn

常用功能

更新日期/Last Update: 2010-12-20