Pollen-recorded climate changes between 13.0 and 7.0 14C ka BP in southern Ningxia, China
Tóm tắt
A pollen record from Haiyuan section in the southern part of Ningxia revealed a detailed history of vegetation variation and associated climate changes during the period from ∼13.0 to ∼7.0 14C ka BP. A steppe landscape under a moderately dry (and probably cool) condition (∼12.7–∼12.1 14C ka BP) was replaced by a coniferous forest dominating the landscape under a generally wet climate from ∼12.1 to ∼11.0 14C ka BP. This generally wet period, corresponding to the European Bölling/Allërod period, can be divided into three stages: a cool and wet stage between ∼12.1 and ∼11.4 14C ka BP, a mild and relatively dry stage between ∼11.4 and ∼11.2 14C ka BP, and a mild and wet stage between ∼11.2 and ∼11.0 14C ka BP. The coniferous forest-dominated landscape was then deteriorated into steppe landscape (∼11.0–∼10.6 14C ka BP) and further into a desert steppe landscape from ∼10.6 to ∼9.8 14C ka BP, being correspondent to the European Younger Dryas period. After a brief episode of a cool and wet climate (∼9.8–∼9.6 14C ka BP), a relatively mild and dry condition prevailed during the early Holocene (∼9.6–∼7.6 14C ka BP) and then a warm and humid climate started the mid-Holocene (∼7.6–∼7.2 14C ka BP).
Tài liệu tham khảo
Broecker W S. Massive iceberg discharges as triggers for global climate change. Nature, 1994, 374: 421–424
Bond G, Shower W, Cheseby M, et al. A pervasive millennial-scale cycle in North Atlantic Holocene and glacial climates. Science, 1997, 278: 1257–1266
O’Brien S R, Mayevoski P A, Meeker L D, et al. Complexity of Holocene climate as reconstructed from a Greenland ice core. Science, 1995, 270: 1962–1964
Yang Z H, Yao T D, Huang C L, et al. The record of Younger Dryas event in Guliya ice core. Chin Sci Bull (in Chinese), 1997, 42(18): 1975–1978
An Z S, Stepen C P, Zhou W J, et al. Episode of Strengthened Summer Monsoon Climate of Younger Dryas Age on the Loess Plateau of central China. Quat Res, 1993, 39: 45–54
Wang P X, Bian Y H, Li B H, et al. The “Younger Dryas” event in west Pacific margin seas. Sci China Ser D-Earth Sci (in Chinese), 1996, 26(5): 452–460
Guo Z T, Petti-Maire N, Kropelin S. Holocene non-orbital climatic events in present-day arid areas of northern Africa and China. Global and Planetary Change, 2000, 26(1–3): 97–103
Zhou W J, Lu X F, Wu Z S, et al. Peat record reflecting Holocene climatic change in the Zoige Plateau and AMS radiocarbon dating. Chin Sci Bull (in Chinese), 2001, 46(12): 1040–1044
Liu X Q, Shen J, Wang S M. A 16000-year pollen record of Qinghai Lake and its paleoclimate and paleoenvi-ronment. Chin Sci Bull (in Chinese), 2002, 47(22): 1931–1936
Qin J M, Yuan D X, Cheng H, et al. The Y. D. and climate abrupt events in the early and middle Holocene: Stalagmiter oxygen isotope record from Maolan, Guizhou, China. Sci China Ser D-Earth Sci, 2005, 48(4): 530–537
Feng Z D, Tang L Y, Wang, H B, et al. Holocene vegetation variations and the associated environmental changes in the western part of the Chinese Loess Plateau. Palaeogeogr Palaeoclimatol Palaeoecol, 2006, 241(3–4): 440–456
Li T B. Holocene strata of the Qingshui River valley at Tongxin county, Ningxia. Geol Bull China (in Chinese), 1997, 16(3): 253–258
Ningxia Bureau of Geology and Mineral Resources. Regional Geology of Ningxia Hui Autonomous Region (in Chinese) Beijing: Geological Publishing House, 1990. 228–232
Mooer P D, Web J A. Palynology Analytical Manual (in Chinese) (translated by Li W Y, Xiao X M, Liu G X). Nanning: Guangxi People’s Publishing House, 1987
Wang F X, Qian N F, Zhang Y L, et al. Pollen Flora of China, 2nd ed. (in Chinese). Beijing: Science Press, 1995
Wang K F, Wang X Z. Palynology Conspectus (in Chinese). Beijing: Peking University Press, 1983
Wu Y S, Sun X J. Numerical characteristics between surface pollen and vegetation in the forest of Xishan Mountain, Kunming. Acta Botan Sin (in Chinese), 1987, 29: 204–211
Li W Y, Yan S. Research of Quaternary Polynology, Chaiwopu Basin (In Quaternary Climatic Change and Hydrologic Geological Events of Chaiwopu Basin, Xinjiang) (in Chinese). Beijing: Ocean Press, 1990. 46–72
Li W Y. Quaternary Vegetation and Environment of China (in Chinese). Beijing: Science Press, 1998. 48–72
Yan S. The discussion on the pollen of pine family in surface in Xinjiang. Arid Land Geography (in Chinese), 1993, 16(3): 1–9
Zhang J H, Kong Z C, Du N Q. Pollen analysis of surface samples from Baihua and Dongling Mountains in Beijing. Mar Geol Quat Geol (in Chinese), 1996, 16(3): 101–113
Ma Y Z, Zhang H C, Pachui H J, et al. Modern pollen-inferred Holocene climate change in the Tengger Desert, NW China. The Holocene, 2004, 14(6): 841–850
Yan S, Xu Y Q. Spore-pollen association in surface-soil in Altay, Xinjiang. Arid Land Rea (in Chinese), 1989, 1: 26–33
Weng C Y, Sun X J, Chen Y S. Numerical characteristics of pollen assemblages of surface samples from the west Kunlun mountains. Acta Botan Sin (in Chinese), 1993, 35: 69–79
Xu Q H, Wu C, Meng L Y, et al. Pollen assemblage feature of different geomorphologic units and different sendimentary facies, North China Plain. Chin Sci Bull (in Chinese), 1994, 39(19): 1792–1795
Sun X J, Song C Q, Wang B Y, et al. Vegetation variations along southern margin of the Loess Plateau-a case study of pollen record at Weinan section. Chin Sci Bull (in Chinese), 1995, 40(13): 1222–1224
Li Y Y, Zhang X S, Zhou G S, et al. Quantitative relationships between vegetation and several pollen taxa in surface soil from North China. Chin Sci Bull, 2000, 45(16): 1519–1523
Liu H Y, Cui H T, Richard P, et al. The surface pollen of the woodland∼ steppe ecotone in southeastern Inner Mongolia. Rev Palaeobot Palynol, 1999, 105: 237–250
Wang B Y, Song C Q, Sun X J. Study on surface pollen in middle Inner Mongolia, China. Acta Botan Sin (in Chinese), 1996, 38(11): 902–909
Li X Q, Zhou W J, An Z S, et al. The palaeovegetation record of monsoon evolution in the desert-loess transition zone for the last 13ka BP. Acta Botan Sin (in Chinese), 2000, 42(8): 868–872
Xia Z K, Chen G, Zheng G W, et al. Climate background of the evolution from Palaolithic to Neolithic cultural transition during the Last Deglaciation in the middle reaches of the Yellow River. Chin Sci Bull, 2002, 47(1): 71–75
Hou X Y. Geography of Vegetation and Chemical Elements of Main Dominant Plants in China (in Chinese). Beijing: Science Press, 1982. 79–83
Wang B Y, Sun X J. The preliminary study on the environment of the Holocene in Chasuqi, Inner Mongolia. Chin Sci Bull (in Chinese), 1997, 42(5): 514–518
Yang Z R, Shi P J, Fang X Q. Preliminary study on palaeovegetation and environmental changes since 11 ka BP in Diaojiaohaizi lake area, Daqing Mountains, Inner Mongolia. Acta Phytoecol Sin (in Chinese), 1997, 21(6): 551–563
Yuan D X, Cheng H, Edwards R L, et al. Timing, duration and transitions of the Last Interglacial Asian Monsoon. Science, 2004, 304(23): 575–578
Zhou W J, Li X Q, Dong G R, et al. The turf record of high-resolution in desert-loess transitional zone since Younger Drays. Sci China Ser D-Earth Sci (in Chinese), 1996, 26(2): 118–124
Li S, Qiang M R, Li B S, et al. Rapid climate changes at northwestern margin of east Asian Monsoon region during the Last Deglaciation. Geol Rev (in Chinese), 2004, 50(1): 106–112
Yao T D. The sudden change in climate of the Qinghai-Tibet Plateau at the Last Ice Age: contrast study of the Guliya ice core and the Greenland GRIP ice core. Sci China Ser D-Earth Sci (in Chinese), 1999, 29(2): 175–184
Wang Y J, Cheng H, Edwards R L, et al. A high-resolution absolute-dated Late Pleistocene Monsoon record from Hulu cave, China. Science, 2001, 249(14): 2345–2348
Tang L Y, Shen C M, Liu K-B, et al. Changes in South Asian Monsoon: New high-resolution paleoclimatic records from Tibet, China. Chin Sci Bull (in Chinese), 1999, 44(18): 2004–2007
Shi Q, Chen F H, Zhu Y, et al. Lake evolution of the terminal area of Shiyang River drainage in arid China since the Last Glaciation. Quarter Intern, 2002, 93–94: 31–43
Jin H L, Dong G R, Su Z Z, et al. Reconstruction of the spatial patterns of desert-loess boundary belt in north China during the Holocene. Chin Sci Bull, 2001, 46(12): 969–973