EVOLUTION AND ABRUPT CHANGES OF THE HOLOCENE ASIAN MONSOON CLIMATE RECORDED BY STALAGMITE IN BAIGU CAVE IN GUIZHOU
-
摘要: 通过对贵州白骨洞BG1石笋13个230Th年龄的测试和390个氧同位素数据的分析,建立了12.8~3.3 kaBP数十年尺度的亚洲季风降水序列,其长期演化趋势与北纬33°夏季日辐射能量曲线基本一致。石笋δ18O记录指示10.5~5.8 kaBP为本区气候湿润期,此后进入季风降水衰退期。在12.8~10.1 kaBP时段,平均分辨率为37 a的石笋降水记录与格陵兰冰心气温记录具有良好对应关系:(1)两者在新仙女木事件(YD)的变化细节及突变特征上表现出良好的一致性;(2)由YD事件向全新世转换的过程中两者都表现为3个阶梯式上升阶段,这种一致性有可能说明热带海气耦合驱动了北半球气候突变事件。在7.0~3.3 kaBP时段,平均分辨率为15 a的石笋δ18O序列记录了5次较为显著的降水减少期,可分别对应于冰心记录中的5个冷事件,高低纬气候的相似性可部分归因于太阳活动的影响。Abstract: A Holocene speleothem δ18O time series was reconstructed based on 390 stable isotope data and 13 230Th dates, covering a period from 12.8 to 3.3 kaBP. This record, with an average decadal-scale resolution, well reflects Asian summer monsoon history and thus its precipitation. A long-term trend of stalagmite δ18O profile bears a high similarity to the summer insolation at 33°N, suggesting that changes in solar irradiation forced the Holocene monsoon circulation during the entire Holocene period. We identified three stages from the stalagmite δ18O record, i.e. a transition of YD/Holocene at about 11ka, a humid stage during 10.5~5.8 kaBP and a gradually decreased monsoon precipitation stage since 5.8 kaBP. During the early Holocene,stalagmite δ18O record of an average 37-year resolution correlates well with the Greenland temperature record. Firstly, the two records show a similar detailed internal oscillation in YD event and abrupt changes out of YD event. Secondly, during the transition of YD event/Holocene period, three stepwise stages can be recognized in both of the records. Such coherence may suggest that the abrupt climate events in Northern Hemisphere were triggered by the coupled tropical ocean-atmosphere. During 7.0~3.3 kaBP, the stalagmite δ18O record, with a resolution of 15 years, displays a centennial-scale variability of monsoon precipitation. Among these, five weak monsoon events with a pace of 500~1000 years, can be related to, within the uncertainty of U/Th dates, five cold events recorded in Greenland ice core respectively. The inherent link between the high and low latitude climates can, in part, be ascribed to responses to changes of solar activity.
-
Key words:
- stalagmite /
- oxygen isotope /
- monsoon precipitation /
- Holocene
-
-
[1] Wang Y J, Cheng H, Edwards R L, et al. A high resolution absolute-dated late Pleistocene monsoon record from Hulu cave, China[J]. Science, 2001, 294:2345-2348.
[2] Porter S C, An Z S. Correlation between climate events in the North Atlantic and China during the last glaciation[J]. Nature, 1995, 375:305-308.
[3] Mayewskia P A, Rohlingb E E, Stagerc J C, et al. Holocene climate variability[J]. Quaternary Research, 2004, 62:243-255.
[4] Fleitmann D, Burns S J, Mudelsee M, et al. Holocene forcing of the Indian monsoon recorded in a stalagmite from Southern Oman[J]. Science, 2003, 300:1737-1739.
[5] Neff U, Burns S J, Mangini A, et al. Strong coherence between solar variability and monsoon in Oman between 9 and 6 ka ago[J]. Nature, 2001, 411:290-293.
[6] Hong Y T, Hong B, Lin Q H, et al. Correlation between Indian Ocean summer monsoon and North Atlantic climate during the Holocene[J]. Earth and Planetary Science Letters, 2003, 211:371-380.
[7] Tan M, Hou J Z, Liu T S. Sun-coupled climate connection between eastern Asia and northern Atlantic[J]. Geophysical Research Letters, 2004, 31, L07207, doi:10.1029/2003GL019085.
[8] CHEN Fa-hu, ZHU Yan, LI Ji-jun, et al. Abrupt Holocene changes of the Asian monsoon at millennial-and centennial-scales:Evidence from lake sediment document in Minqin Basin, NW China[J]. Chinese Science Bulletin, 2001, 46(23):1942-1947.
[9] QIN Jia-min, YUAN Dao-xian, CHENG Hai, et al. The YD and climate abrupt events in the early and middle Holocene:stalagmite oxygen isotope record from Maolan Guizhou, China[J]. Science in China, 2005, 48(4):530-537.
[10] SHEN Chuan-chen, Edwards L R, Cheng H.Uranium and thorium isotopic and concentration measurements by magnetic sector inductively coupled plasma mass spectrometry[J]. Chemical Geology, 2002, 185:165-178.
[11] Wang Y J, Cheng H, Edwards R L, et al. The Holocene Asian Monsoon:links to solar changes and North Atlantic climate[J]. Science, 2005, 308:854-857.
[12] An Z S, Porter S C, kutzbach J E, et al. Asynchronous Holocene optimum of the East Asian monsoon[J]. Quaternary Science Reviews, 2000, 19:743-762.
[13] WANG Su-min, YANG Xiang-dong, TONG Guo-bang, et al. Environment change of Gucheng Lake of Jiangsu in the past 15 ka and its relation to palaeomonsoon[J]. Science in China (Series D), 1996, 39(2):144-151.
[14] 温孝胜, 赵焕庭, 张乔民, 等. 伶仃洋钻孔岩心的沉积特征及环境演化[J]. 海洋学报, 1997, 19(2):121-128.
[WEN Xiao-sheng, ZHAO Huan-ting, ZHANG qiao-min, et al. The sedimental character and environment evolution from Lingdingyang sediment core[J]. Acta Oceanologica Sinica, 1997, 19(2):121-128.]
[15] 吴锡浩, 安芷生, 王苏民, 等. 中国全新世气候适宜期东亚夏季风时空变迁[J]. 第四纪研究, 1994,14(4):24-37.
[WU Xi-hao, AN Zhi-sheng, WANG Su-min, et al. The temporal and spatial variation of East Asian summer monsoon in Holocene Optimum in China[J]. Quaternary Science Research, 1994,14(4):24-37.]
[16] CAI Yan-jun, ZHANG Mei-liang, PENG Zi-cheng, et al. The δ18O variation of a stalagmite from Qixing Cave, Guizhou Province and indicated climate change during the Holocene[J]. Chinese Science Bulletin, 2001, 46(22):1904-1908.
[17] CHEN fa-hu, WU Wei, ZHU Yan, et al. The mid-Holocene drought interval as evidence by lake desiccation in the Alashan plateau, Inner Mongolia, China[J]. Chinese Science Bulletin, 2003, 48(14):1401-1411.
[18] Porter S C. Chinese loess record of monsoon climate during the last glacial-interglacial cycle[J]. Earth-Science Reviews, 2001, 54:115-128.
[19] Broecker W S. Does the trigger for abrupt climate change reside in the ocean or in the atmosphere?[J].Science, 2003, 300:1519-1522.
[20] Teller J T, Leverington D W, Mann J D. Freshwater outbursts to the oceans from glacial Lake Agassiz and their role in climate change during the last deglaciation[J]. Quaternary Science Reviews, 2002, 21:879-887.
[21] Goslar T, Arnold M, Tisnerat-Laborde N. Variations of Younger Dryas atmospheric radiocarbon explicable without ocean circulation changes[J]. Nature, 2000, 403:877-880.
[22] Hughen K A, Southon J R, Lehman S J et al. Synchronous radiocarbon and climate shifts during the last deglaciation[J]. Science, 2000, 290:1951-1954.
[23] Brook E J, Sowers T, Orchardo J. Rapid variations in atmospheric methane concentration during the past 110000 years[J]. Science, 1996, 273:1087-1091.
[24] Biscaye P E, Grousset F E, Revel M, et al. Limits on the origins of last-glacial maximum dust in the GISP2 ice core, Summit, Greenland[J]. Journal of Geophysical Research, 1997, 102(C12):26765-26782.
[25] Gupta A K, Anderson D M, Overpeck J T. Abupt changes in the Asian southwest monsoon during the Holocene and their links to the North Atlantic Ocean[J]. Nature, 2003, 421:354-357.
[26] Bond G, Kromer B, Beer J, et al. Persistent solar influence on North Atlantic climate during the Holocene[J]. Science, 2001, 294:2130-2136.
-
计量
- 文章访问数: 918
- PDF下载数: 3
- 施引文献: 0
下载: