| 内蒙古岱海末次冰期以来的环境变迁与古气候 |
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| 引用本文： | 王苏民,吴瑞金,蒋新禾.内蒙古岱海末次冰期以来的环境变迁与古气候[J].第四纪研究,1990,10(3):223-232. |
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| 作者姓名： | 王苏民 吴瑞金 蒋新禾 |
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| 作者单位： | 中国科学院南京地理与湖泊研究所，中国科学院南京地理与湖泊研究所，中国科学院南京地理与湖泊研究所 中国科学院西安黄土与第四纪地质开放研究实验室 |
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| 基金项目： | 中国科学院自然科学基金 |
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| 摘 要： | 内蒙古岱海是半干旱地区的封闭湖泊,通过周围湖泊阶地和钻孔沉积物中孢粉、介形类、自生矿物的分析,结合测年数据,重建了末次冰期以来湖泊环境演化过程和特点,讨论了全新世气候最适宜期的开始、终结时间和湖泊气候波动的准周期,并依据重力岩芯的粒度和元素含量探讨近期历史时期气候波动的短周期,论证预测湖泊环境变化趋势的可能性。
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| 关 键 词： | 湖泊阶地 环境演化 气候波动周期 |
ENVIRONMENT EVOLUTION AND PALEOCLIMATE OF DAIHAI LAKE, INNER MONGOLIA SINCE THE LAST GLACIATION |
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| Institution: | 1. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences;
2. Xi'an Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences |
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| Abstract: | Daihai Lake in Inner Mongolia is a closed lake in semiarid area. Through the analyses of sporo-pollen, ostracoda and autogenous minerals in the sediments from cores and terraces, combined with dating data, the evolutionary process and features of the lake environment have been reconstructed since the last glaciation, the beginning and ending time of Holocene optimum period and the subperiodicity of the lake level fluctuation are discussed. Based on the grain size and the element content in deposits from gravity cores, the authors have probed the short periodicity of climate change in this historical period, indicating that it is possible to predict the trend of environmental evolution. |
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