| 摘要: |
| 根据新疆东部巴里坤湖沉积地层及孢粉、地球化学元素和有机质合量波动特征．同时结合年代的测定，本文对由其所揭示的晚冰期中的几次冰阶与间冰阶交替出现的内陆型环境演变特征进行了研究．指出此阶段中环境演变仍具有相对冷湿与暖干交替的匹配模式，广泛的区域性对比表明．它的出现具有全球一致性．同时又具有区域性差异特征，这种非线性的气候变化对于研究气候突变事件的发生机制具有重要意义。 |
| 关键词: 晚冰期 内陆型 环境演变特征 湖相沉积 巴里坤湖 |
| DOI：10.18307/1998.0301 |
| 分类号: |
| 基金项目:国家自然科学基金(4870042)资助项目 |
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| Inland Lacustrine Recordt of Environmental Change during Late GIaciation in West China |
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Zhong Wei, Han Shu-ti
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Department of Geography, Xinjiang University, Urumgi 830046
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| Abstract: |
| Based 011 the sedimentary feature.spore-pollen analyses.the contents of geochemical ela ments and organic matter,together with the chronological results of the lacustrine sediment of Balikun Lake in the northern part of Xinjiang,this paper focuses on the climatic change during Late Glaciation.The climate during this period was characterized by alternation 0f several stadials and interstadials.and there still exists a disposal regime of hydro-and thermal-conditions.which is represented by cold humid and warm-dry on the time scaIe of 100 years.differentiating from the eastern monsoonaI area in China and the other areas over the world.but the process of climatic evoltion is synchroneous, What the paper has revealed is a non-linear climatic change during Late Glaciation in the northern part of Xinjiang,the most extreme arid inland area.which may be all important significance for providing some fresh insights into “The Climatic Abrupt Change Events”. |
| Key words: Late Glaciation inland style environm ental change 1acustrine sediment Balikun Lake |
