首页 | 本学科首页   官方微博 | 高级检索  
     检索      

近百年来亚洲中部内陆湖泊演变及其原因分析
引用本文:秦伯强.近百年来亚洲中部内陆湖泊演变及其原因分析[J].湖泊科学,1999,11(1):11-19.
作者姓名:秦伯强
作者单位:新疆大学地理系!乌鲁木齐830046
基金项目:国家自然科学基金!49761007,新疆大学自然科学基金
摘    要:南疆博斯腾湖湖相沉积物碳酸盐稳定同位素,孢粉及地化元素含量的波动揭示了于11.0 ̄10.0kaBP期间的相对冷湿的环境特征,这次变冷事件在年代上可与末次冰消期的新仙女木气候突然变冷事件相对应,虽然目前还无法圆满解释此事件的成因机制,但此事件在极端干昌的南疆博斯腾湖湖相沉积中的发现,无疑对深入认识此事件发生的全球性以及探讨其成因机制具有重要意义。

关 键 词:博斯腾湖  新仙女木事件  冰消期  气候变化  古气候
收稿时间:1998/12/9 0:00:00

A Preliminary Investigation of Lake Evolution in 20-century in Inland Mainland Asia with Relation to the Global Warming
QIN Bo-qiang.A Preliminary Investigation of Lake Evolution in 20-century in Inland Mainland Asia with Relation to the Global Warming[J].Journal of Lake Science,1999,11(1):11-19.
Authors:QIN Bo-qiang
Institution:Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008
Abstract:One of the most dramatic climate change events is the Younger Dryas event (YD), a return to near-glacial conditions that punctuated the last deglaciation. Based chiefly on the lacustrine car- bonate isotopic composition, spore-pollen and geochemical element wet-dry index C and CaCO_3 analyses of Bosten Lake, southern Xinjiang, the most striking Younger Dryas cooling event(YD) during last deglaciation has been revealed. This record shows that both the onset and termination of the YD event occurred within 11. 0-10. 0kaBP, essentially synchronizing with Europe and Greenland, during which climate was characterized by a cold and relative humid regime. Although the mechanism for creating such abrupt and global event is not easly to be ex- plained, the results obtained from southern Xinjiang, the aridest inland area in China, may provide some fresh insights into such abrupt climatic anomalies.
Keywords:Bosten Lake  Younger Dryas Event  lacustrine deposit
本文献已被 CNKI 维普 等数据库收录!
点击此处可从《湖泊科学》浏览原始摘要信息
点击此处可从《湖泊科学》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号