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Pollen- and Diatom-Inferred Climatic and Hydrological Changes in Sumxi Co Basin (Western Tibet) since 13,000 yr B.P.

  • Elise Van Campo (a1) and Francoise Gasse (a2)


Although the Tibetan Plateau greatly influences the atmospheric circulation of the Nortbern Hemisphere, few continuous paleoclimatic records are available from the plateau. A 13,000-yr pollen and diatom record from the Sumxi-Longmu Co basin in western Tibet gives information on major changes both in regional vegetation and in local hydrology. After the basin first filled ca. 13,000 yr B.P., a dry spell occurred about 10,500 yr B.P. within the interval spanned by the European Younger Dryas chronozone. A major environmental change occurred suddenly at ≈10,000 yr B.P., with the establishment of wet conditions, and was followed by a long-term trend toward maximum aridity, which lasted approximately 6000 yr. Short-term oscillations are superimposed on this general climatic change with a major reversal event about 8000 yr B.P. and a second wet pulse leading to a maximum lake volume ca. 7500-6000 yr B.P. Maximum aridity occurred 4300 yr B.P. The major environmental fluctuations recorded at Sumxi-Longmu Co appear in phase with climatic changes recognized in north tropical Africa, suggesting that the 8000 to 7000-yr-B.P. event was caused by an abrupt disequilibrium in the climatic system, as was the Younger Dryas and possibly the 4300-yr-B.P. event.



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Arakawa, H. (1969). “Climates of Northern and Eastern Asia, World Survey of Climatology,” Vol. 8.
Avouac, J. P., and Dobremez, J. F. (1992). “Evidence for a 9-12 yr Cycle in a Long Profile across the Holocene Regressive Shorelines of Longmu Co?” International Symposium on Karakorum and Kunlun Mountains Kashi, China, 5-9 June 1992, Abstracts, p. 65.
Berger, A. L. (1978). Long-term variations of caloric solar radiation resulting from the earth’s orbital elements. Quaternary Research 9, 139167.
Birks, H. J. (1973). Modern pollen rain studies in some artic and alpine environments. In “Quaternary Plant Ecology” (Birks, H. J. B. and West, R. G., Eds.), pp. 142148. Blackwell Scientific, Oxford.
Broecker, W. S. Bond, G., and Klas, M. (1990). A salt oscillator in the Glacial Atlantic?: The concept. Paleoceanography 5, 469477.
Chawla, S. Dhir, R. P., and Singhvi, A. K. (1992). Thermolumines-cence chronology of sand profiles in the Thar desert and their implications. Quaternary Science Reviews 11, 2532.
Cholnoky, B. J. (1968). Die Okologie des Diatomeen in Binnenge-wässerm, Cramer, Lehre.
Ciais, P. Petit, J. R. Jouzel, J. Lorius, C Barkow, N. I. Lipenkow, V., and Nikolaïev, V. (1991). Evidence for an early Holocene climatic optimum in the Antarctic deep-ice core record. Climate Dynamics 6, in press.
Cleve-Euler, A. Die diatomeen von Sweden und Finnland, Kungl. Svenska Vetensk—Akad. Handl. Part 1, 1951, 2(1): Part 5, 1952. 3(3); Part 2, 1953, 4(1); Part 3, 1953, 4(5); Part 4, 1995, 5(4).
Cohmap Members (1988). Climatic changes of the last 18,000 Years: Observations and model simulations. Science 241, 10434052.
Cour, P. (1974). Nouvelles techniques de détection des flux et des re-tombées pollinques: Étude de la sédimentation des pollens et des spores à la surface du sol. Pollen et Spores 16, 103142.
Dobremez, F. (1992). “Air Climate and Plant Growth Ecophysiology on High Plateau of Karakorum and Kunlun Area.” International Symposium on Karakorum and Kunlun Mountains Kashi, China, 5-9 June 1992, Abstracts., p. 118.
El-Moslimany, A. P. (1990). Ecological significance of common nonarboreal pollen: Examples from drylands of the Middle East. Review of Paleobotany and Palynology 64, 343350.
Fang, Jin-Qi (1991). Lake evolution during the past 30,000 years in China, and its implication for the environmental change. Quaternary Research 36, 124.
Flohn, H. (1981). The elevated heat source of the Tibetan highlands and its role for the large scale atmospheric circulation. In “Geological and Ecological Studies on Qinghai-Xigang Plateau,” Vol. 2, pp. 14631469. Science Press, Beijing; Gordon and Breach, New York.
Foiland, C. K. Kartl, T. R., and Vinnikov, K. Y. (1990). Observed climate variations and change. In “Climate Change, IPCC Scientific Assessment. SMO/UNEP” (Houghton, J. T., et at., Eds.). Cambridge Univ. Press, Cambridge.
Fritz, S. C Juggins, S. Battarbee, R. W., and Engstrom, D. R. (1991). Reconstruction of past changes in salinity and climate using a diatom-based transfer function. Nature 352, 706708.
Gasse, F. (1977). Evolution of lake Abhé (Ethiopia and T.F.A.I.) from 70000 B.P. Nature 2, 4245.
Gasse, F. (1986). “East African Diatoms. Taxonomy, Ecological Distribution.” Bibliotheca Diatomologica, Band 11. Cramer, Stuttggart.
Gasse, F. Arnold, M. Fontes, J. C Fort, M. Gibert, E. Huc, A. Li Bingyan, Li Yuanfang, Liu Qing, Melières, F. Van Campo, E. Wang Fubao, , and Zhan Qingsong, . (1991). A 13000 year climate record from western Tibet. Nature 353, 742745.
Gasse, F., and Fontes, J. C. (1992). Climatic changes in northwest Africa during the last deglaciation (16-7 ka B.P.). In “The Last Degla-ciation” (Broecker, W. and Bard, E., eds). Nato series (in press).
Gasse, F. Téhet, R. Durand, A. Gibert, E. Fontes, J. C. (1990). The arid-humid transition over the Sahara during the last deglaciation. Nature 346, 141146.
Gibert, E. Arnold, M. Conrad, D. De Deccker, P. Fontes, J. C Gasse, F., and Kassir, A. (1990). Retour des conditions humides au Tardiglaciaire au Sahara septentrional (sebkha Mellala, Algèrie). Bulletin de la Societe Géolagique de France 8, 497504.
Gillespie, R., and Street-Perrott, F. A. (1983). Post glacial arid eposides in Ethiopia have implications for climate prediction. Nature 306, 680683.
Huang, C. X., and Liang, Y. L. (1981). Based upon palynological study to discuss the natural environmental of the Central and Southern Qinghai-Xizang Plateau of Holocene. In “Geological and Ecological Studies Studies of Qinghai-Xizang” Vol. 1, pp. 215224. Science Press, Beijing; Gordon and Breach, New York.
Hustedt, F. (1922). Baciiiariailes aus Innerasian, gesammelt von Sven Hedin. In “Southern Tibet” Hedin, (ed.), 6(3), pp. 107152. Bot., Stockholm.
Hustedt, F. (1927-1966). Die kieselalgen Deutschlands, Osterreichs und der Schweiz. Dr. In L. Rabenhorsts Kryptogamenflora von Deutschlands, Osterreichs und der Schweiz,” Vol. 7, 1927-1930; Part 1; 1959, part 2; 1966, part 3. Akademische Verlagsgeselishaft, Leipzig.
Kashiwaya, K. Yaskawa, K. Yuan, B. Liu, J. Gu, Z. Cong, S., and Masuzawa, T. (1991). Paleohydrological processes in Siling-Co (lake) in the Qing-Zang (Tibetan) Plateau based on the physical properties of its bottom sediments. Geophysical Research Letters 18, 17791781.
Kou You-Guan, Zeng Qun-Zhu, Xie Wei-rong, , and Xiao Shu, (1981). On the radiation and heat balance over Qinghai-Xizang plateau. In “Geological and Ecological Studies on Qinghai-Xigang Plateau” Vol. 2, pp. 15531568. Science Press, Beijing; Gordon and Breach, New York.
Krammer, K., and Lange-Berthalot, H. (1986). In “Süsswasserflora von Mitteleuropa. Bacillariophyceae. Naviculaceae” (Pasher, A., Ed.). Fisher, Stuttggart.
Krammer, K., and Lange-Berthalot, H. (1988). In “Süsswasserflora von Mitteleuropa. Bacillariophyceae. Bacillariaceae, Epithemiaceae, Surirellaceae” (Pasher, A., Ed.), Band 2/2. Fisher, Stuttggart.
Kudrass, H. R. Erienkeuser, H. Vollbrecht, R., and Weiss, W. (1991). Global nature of the Younger Dryas cooling event inferred from oxygen isotope data from Sulu Sea cores. Nature 349, 406408.
Li, B. Yang, Y. Zhang, Q., and Wang, F. (1982). On the environmental evolution of Xizang (Tibet) in Holocene. In “Quaternary Geology and Environment of China” (Liu, T. Sun, Y. Lu, R. Zhao, X. You, Y., and Wei, L., Eds.), pp. 173177. Quaternary Research Association China; China Ocean Press.
Li, J. J. (1990). The patterns of environmental evolution in northwestern China since the late Pleistocene. Quaternary Sciences 3.
Li, J. J., and Zheng, B. X. (1981). The monsoon maritime glaciers in the southeastern part of Xizang. In “Geological and Ecological Studies on Qinghai-Xigang Plateau,” Vol. 2, pp. 15991609. Science Press, Beijing; Gordon and Breach, New York.
Lin Zhen-Yao, and Wu Xiang-ding, (1981). Climatic classification of Qinghai-Xizang Plateau. In “Geological and Ecological Studies on Qinghai-Xigang Plateau,” Vol. 2, pp. 15751579, Science Press, Beijing; Gordon and Breach, New York.
Lister, G. S. Kelts, K. Zao, C. K. Yu, J. K., and Niessen, K. (1991). Lake Qinghai, China: Closed-basin lake levels and the oxygen isotope record for ostracoda since the latest Pleistocene. Palaeogeog-raphy, Palaeoclimatology, Palaeoecology 84, 141162.
Liu, Q. Avouac, J. P. Tapponnier, P., and Zhang, Q. (1991). Field evidence for holocene and active faulting in western Qangtang, EUGUI, Strasbourg. Terra Abstracts 3, 265.
Lowe, R. L. (1974). “Environmental Requirements and Pollution Tolerances of Freshwater Diatoms.” National Environmental Research Center, U.S. Environmental Protection Agency, Cincinnati.
Maley, J. (1981). Études palynologiques dans le bassin du Tchad et paléoclimatologie de l’Afrique nord tropicale de 30,000 B.P. à l’épo-que actuelle. Trav. Docum. ORSTOM, Paris, Vol. 129.
Mereschkowsky, C. (1906). Diatomeenalgen Tibets (Mongolei und Kam). Arb. Exp. Kais, russ. geogr. Ges. 1899-1901, unter Ltg von P.K. Koslow. Bulletin de la Societie Imperiale des Russe Géographique St. Petersbourg 8, 383395.
Rötlishberger, F. (1986). “10000 jahreGletchergeschichte des Erde.” Verlag Sauerlände Aarou, Switzerland.
Servant, M. (1973). “Séquences continentales et variations climatiques: Évolution du bassin du Tchad au Cénozoique supérieur.” Thesis, University of Paris.
Simonsen, R. (1987). “Atlas and Catalogue of the Diatom types of Friedrich Hustedt,” Vol. 1, catalogue; Vol. 2, plates 1-395; Vol. 3, plates 396772. J. Cramer, Berlin.
Singh, G. Joshi, R. D. Chopra, S. K., and Singh, A. B. (1974). Late Quaternary history of vegetation and climate of the Rajastha desert. India Philosophical Transcripts of the Royal Society of London B 267, 467501.
Singh, G. Wasson, R. J., and Agrawal, D. P. (1990). Vegetational and seasonal climatic changes since the last full glacial in the Thar Desert, northwestern India. Review of Paiaeobotany and Palynology 64, 351358.
Steeves, M. W., and Barghoom, E. S. (1959). The pollen of Ephedra. Journal of the Arnold Arboretum 40, 221255.
Stuiver, M. Braziunas, T. F. Becker, B., and Kromer, B. (1991). Climatic, solar, oceanic and geomagnetic influences on Late-Glacial and Holocene atmospheric 14C/12C changes. Quaternary Research 35, 124.
Swain, A. M. Kutzbach, J. E., and Hastenrath, S. (1983). Estimates of Holocene precipitation for Rajasthan, India, based on pollen and laka-level data. Quaternary Research 19, 117.
Talbot, M. R. Livingstone, D. A. Palmer, D. G. Maley, J. Melack, J. M. Delibrias, G., and Gulliksen, J. (1984). Preliminary results from sediment core from lake Bosumtwi, Ghana. Palaeoecology of Africa 16, 173192.
Thompson, L. G. Mosley-Tompson, E. Davis, M. E. Bolzan, J. F. Dai, J. Yao, T. Gundestrup, N. Wu, X. Klein, L., and Xie, Z. (1989). Holocene-Late Pleistocene Climatic ice core records from Qinghai-Tibetan Plateau. Science 246, 474477.
Walter, H. (1971). “Ecology of Tropical and Subtropical Vegetation.” Oliver and Boyd, Edinburgh.
Wang, C. (1961). “The Forests of China, with Survey of Grassland and Desert Vegetation,” Publication 5. Maria Moors Cabot Foundation. Cambridge MA.
Wang, F. B., and Fan, C. Y. (1987). Climatic changes in the Qinghai-Xizang (Tibetan) region of China during the Holocene. Quaternary Research 28, 5060.
Wang, J. T. (1981). On the fundamental characteristics of the steppe vegetation in Xizang Plateau. In “Geological and Ecological Studies on Qinghai-Xigang Plateau,” Vol. 2, pp. 19291936. Science Press, Beijing; Gordon and Breach, New York.
Wasson, R. J. Smith, G. I., and Agrawal, D. P. (1984). Late Quaternary sediments, minerals, and inferred geochemical history of Did-wana lake, Thar desert, India. Palaeogeography, Palaeoclimatology, Palaeoecology 46, 345372.
Weng, C. Y. (1989). “Numerical Characteristics of the Pollen Composition of Surface Soils from the West Kunlun Mountains,” Master thesis, Institute of Botany, Academia Sinica, Beijing.
Zhao, W. L., and Morgan, W. J. (1985). Uplift of the Tibetan Plateau. Tectonics 4, 359369.
Zheng Du, Zhang Young-Zu, , and Yang Qin-Ye, (1981). Physico-geographical differentiation of the Qinghai-Xizang plateau. In “Geological and Ecological Studies on Qinghai-Xigang Plateau,” Vol. 2, pp. 18511860. Science Press, Beijing; Gordon and Breach, New York.
Zheng, M. Ed. (1989). “Saline Lakes on the Qinghai-Xizang (Tibet) Plateau.” Beijing Scientific and Technical Publishing House, Beijing.
Zhou, S. Z. Chen, F. H. Pan, B. T. Cao, J. X. Li, J. J., and Derby-shire, E. (1991). Environmental change during the Holocene in west-ern China on a millennial timescale. The Holocene 1, 151156.
Zhou Weijian, An Zhisheng, Head, J. Donahue, D. J. Ren Jianznang, Lin Benhai, Zhou Mingfu, Yan Yuansheng, , and Zhang Jingzhao, (1991). 14C dating and measurements of climate proxy indices of loess sequence to record paleomonsoon variation on the loess plateau of China during the past 16000 years. Radiocarbon 33, 259.

Pollen- and Diatom-Inferred Climatic and Hydrological Changes in Sumxi Co Basin (Western Tibet) since 13,000 yr B.P.

  • Elise Van Campo (a1) and Francoise Gasse (a2)


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