ENVIRONMENTAL CHANGES DURING LAST 6000 YEARS INFERRED FROM SEDIMENT RECORDS OF DRILLING CORES IN NORTHERN TAIHU LAKE
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摘要: 通过对太湖北部TH-004钻孔沉积物磁化率、粒度、色度指标的测试分析,反演区域8 000年来沉积环境演变,主要表现为8~7 kaBP的温暖湿润阶段,7 kaBP以来环境的变冷变干,以及2.6 kaBP左右的温度湿度回升。但该变化过程更主要表现为温度的快速冷暖旋回,有效湿度的变化并没有温度变化明显,这可能是由于季风降水变化主要表现在季风影响区的边缘地带,而太湖处于季风区内部,无论东亚夏季风增强或减弱,其有效湿度都不会产生明显变化。在此期间有明显的小尺度突变气候事件,特别是中世纪暖期及小冰期气候寒冷事件,在该项研究中都有很好的体现。Abstract: With the data of magnetic susceptibility, grain size, SCR parameters from the sediments of Hole TH-004 in northern Taihu lake, we recontructed the history of environmental evolution of the lake over the past 8 000 years. The climate has been getting colder and drier since 7 kaBP, excepting a warm and humid stage around 2 kaBP. However, the environmental change was mainly characterized by the rapid warming and cooling cycles, and the changes in effective moisture were not significant since the changes in monsoon precipitation were mainly occurred in the periphery of the monsoon-affected zone, and the Taihu Lake was within the monsoon region, where the effective moisture did not suffer significant changes, regardless the advanceing or retreating of the East Asian summer monsoon. There were small scale abrupt climate events during this period, such as the Medieval Warm Period and Little Ice Age cold weather events.
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Key words:
- Environmental change /
- Sendimentological record /
- Mid-late Holocene /
- Taihu
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[1] Heinz Wanner, Jurg Beer, Jonathan Butikofer, et al. Mid-to Late Holocene climate change:an overview[J]. Quaternary Science Reviews, 2008, 27:1791-1828.
[2] 蒋炳兴. 太湖的演变史[J]. 海洋湖沼通报, 1989(1):20-26.[JIANG Bingxing. The historcal changes of Taihu lake[J]. Transactions of Oceanology and Limnology, 1989
(1):20-26.]
[3] 景存义. 太湖的形成与演变[J]. 地理科学, 1989, 9(4):378-385.
[JING Cunyi. Formation and evolution of Taihu Lake. Scientia Geographica Sinica, 1989, 9(4):378-385.]
[4] JIAN Wang, XIA Chen, ZHU Xiao-hua,et al. Taihu Lake, lower Yangtze drainage basin:evolution, sedimentation rate and the sea level[J]. Geomorphology, 2001, 41:183-193.
[5] 王建, 汪永进, 刘金陵,等. 太湖16000年来沉积环境的演变[J]. 古生物学报, 1996, 35(2):213-223.
[WANG Jian, WANG Yongjin, LIU Jinling,et al. Evolution of sedimentary environment in Taihu Lake during the last 16000 years[J]. Acta Paleaontologica Sinica, 1996, 35(2):213-223.]
[6] Telford R J, Heegaard E, Birks H J B. All age-depth models are wrong:but how badly?[J]. Quaternary Science Reviews, 2004, 23:1-5.
[7] Steffen Mischke, Michael Kramer, Chengjun Zhang,et al. Reduced early Holocene moisture availability in the Bayan Har Mountains, northeastern Tibetan Plateau, inferred from a multi-proxy lake record[J].Palaeogeography, Palaeoclimatology, Palaeoecology, 2008, 267:59-76.
[8] Maher B A. Magnetic properties of modern soil and Quaternary loessic palaeosols:palaeoclimatic implications[J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 1998, 137:25-54.
[9] 安芷生, Porter S,Kukla G,等. 最近13万年黄土高原季风变迁的磁化率证据[J]. 科学通报, 1990, 35(7):529-532.
[AN Zhisheng, Porter S, Kukla G,et al. Magnetic susceptibility evidence of season winds changes on loess plateau during the late 130kyr[J]. Science Bulletin,1990,35(7):529-532.]
[10] [11] 吉云平, 夏正楷. 不同类型沉积物磁化率的比较研究和初步解释[J]. 地球学报, 2007, 28(6):541-549.
[JI Yunping, XIA Zhengkai. Comparison of different types of magnetic susceptibility of sediment and preliminary interpretation[J]. Earth Journal, 2007, 28(6):541-549.]
[12] 杨建强, 崔之久, 易朝露,等. 云南点苍山全新世以来的冰川湖泊沉积[J]. 地理学报, 2004, 59(4):525-533.
[YANG Jiangqiang, CUI Zhijiu, YI Zhaolu. Glacial lacustrine sediment's response to climate change since Holocene in Diancang mountain[J]. Acta Geographica Sinica, 2004, 59(4):525-533.]
[13] Lu H Y, Van Huissteden K, An Z S,et al.Monsoon changes on millennial timescale before the last glacial interglacial cycle[J].Journal of Quaternary Science, 1999, 14:101-110.
[14] Muhs D R, Bettis Ⅲ E A. Geochemical variations in Peorialoess of western Iowa indicate paleowinds of Midcontinent NorthAmerica during last glaciation[J].Quaternary Research, 2000, 53:49-61.
[15] Mason J A, Jacobs P M, Greene R S B,et al.Sedimentary aggregates in the Peoria Loess of Nebraska, USA[J]. Catena, 2003, 57:377-397.
[16] Miao X D, Sun Y B, Lu H Y,et al. Spatial pattern ofgrain size in the Late Tertiary Red Clay' deposits (North China)indicates transport by low-level northerly winds[J]. Palaegeography,Palaeoclimatology, Palaeoecology, 2004, 206:149-155.
[17] Porter S C. High-resolution paleoclimatic information from Chinese aeolian sediments based on grayscale intensity profiles[J]. Quaternary Research, 2000, 53:70-77.
[18] Ji J F, Balsam W L, Chen J. Mineralogic and climatic interpretations of the luochuan loess section (China) based on diffuse reflectance spectrophotometry[J].Quaternary Research, 2001, 56:23-30.
[19] Wang H, Hughes R E, Steele J D,et al. Correlation of climate cycles of Middle Mississippi Valley loess and Greenland ice[J]. Geology, 2003, 31:179-182.
[20] 吴艳宏, 李世杰. 湖泊沉积物色度在短尺度古气候研究中的应用[J]. 地球科学进展, 2004, 19(5):789-792.
[WU Yanhong, LI Shijie. Significance of lake sendiment color for short time scale climate variation[J]. Advances in earth science, 2004, 19(5):789-792.]
[21] Wenying Jiang, Zhengtang Guo, Xiangjun Sun, et al. Reconstruction of climate and vegetation changes of Lake Bayanchagan (Inner Mongolia):Holocene variability of the East Asian monsoon[J]. Quaternary Research, 2006, 65:411-420.
[22] Wu Yonghong, Zheng Xiangmin, Zhou Limin. Geochemical record of core PJ in Yangtze River Delta and implications for variations in paleoenvironment[J]. Advanced Materials Research,2011:183-185:161-165.
[23] Jing Tao, Min-Te Chen, Shiyuan Xu.A Holocene environmental record from the southern Yangtze River delta, eastern China[J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 2006, 230:204-229.
[24] Liu Kam-biu, Sun Shuncai, Jiang Xinhe. Environmental change in the Yangtze River Delta since 12000 years BP[J]. Quaternary Research, 1992, 38:32-45.
[25] 施雅风. 中国全新世大暖期气候与环境[M]. 北京:海洋出版社, 1992.[SHI, Yafeng. The Climate and Environment of Holocene Megathermal in China[M]. Beijing:China Ocean Press, 1992.]
[26] Tang Lingyu, Shen Caiming, Zhao Xitao, et al. The vegetation and the climate during the last 10000 aBP in Qingfeng profile of Jianghu, Jiangsu[J]. Science in China, 1993, 23:637-643.
[27] Thompson L G, Yao T, Davis M E,et al.Tropical climate instability:the last glacial cycle from a Qinghai Tibetan ice core[J]. Science, 1997, 276:1821-1825.
[28] Tarlor K C, Lamorey G W, Doyle G A, et al. The flickering switch of late Pleistocene climate change[J]. Nature, 1993, 361:432-436.
[29] Perry C A, Hsu K J. Geophysical, archaeological, and historical evidence support a solar-output model for climate change[J]. Proceedings of the National Academy of Sciences, 2000, 97:12433-12438.
[30] Paul A Mayewski, Eelco E Rohling, J Curt Stagerc,et al. Holocene climate variability[J]. Quaternary Research, 2004, 62:243-255.
[31] 竺可桢. 中国近五千年来气候变迁的初步研究[J]. 中国科学A辑, 1973(2):168-189.[ZHU Kezhen. Preliminary study of climate change nearly five thousand years in China[J]. Science in China (Series A), 1973
(2):168-189.]
[32] 姚檀栋, 谢自楚, 武筱舲. 敦德冰帽中的小冰期气候记录[J]. 中国科学B辑, 1990(11):1196-1201.[YAO Tandong, XIE Zichu, WU Youling. The Little Ice Age climate records in Dunde ice cap[J].Science in China (Series B), 1990
(11):1196-1201.]
[33] 覃嘉铭, 袁道先, 林玉石,等. 公元8世纪以来贵州荔波石笋高分辨率的气候变化记录[J]. 中国岩溶, 2008, 27(3):266-272.
[QIN Jiaming, YUAN Daoxian, LIN Yushi. High resolution stalagmite records of cl imate change since 800 AD in Libo, Guizhou[J]. Car Sologica Sinica, 2008, 27(3):266-272.]
[34] 康兴成. 小冰期以来高亚洲地区的气候变化[J]. 冰川冻土, 1996, 18(增刊):289-295.[KANG Xingcheng. Climate changes in the Qing-zang plateau area since the little ice age[J]. Journal of Glaciology and Geocryology, 1996
, 18(special issue):289-295.]
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