| 云南鹤庆盆地30ka以来的古气候与环境变迁 |
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| 引用本文： | 蒋雪中,王苏民,羊向东.云南鹤庆盆地30ka以来的古气候与环境变迁[J].湖泊科学,1998,10(2):10-16. |
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| 作者姓名： | 蒋雪中 王苏民 羊向东 |
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| 作者单位： | 中国科学院南京地理与湖泊研究所湖泊沉积与环境开放实验室!南京210008 |
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| 基金项目： | 国家自然科学基金!49572131，中国科学院重大项目!KZ951－Al－402－04，国家科委攀登项目共同资助 |
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| 摘 要： | 通过云南鹤庆钻孔（ＨＱ孔）顶部８．１１ｍ岩芯剖面样品的多项环境指标的综合分析，重建了云南鹤庆盆地３０ｋａＢＰ以来的古气候环境演化历史。研究表明，该区气候在千年时间尺度上表现为冷湿与暖干组合交替的特点，未次冰盛期，为明显的冷湿环境，表现为最高湖面。盆地于晚冰期，约１４．２ｋａＢＰ始被切开，造成环境指标的大变化；进入全新世后，则以温干环境为主导，出现数次冷事件，手者是与东南季风区刊物比较研究的桥梁。
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| 关 键 词： | 环境变迁 古季风 末次冰期 鹤庆盆地 古气候 |
| 收稿时间： | 1/4/1998 12:00:00 AM |
Paleoclimatic and Environmental Changes Over the Last 30000 Years in Heqing Basin,Yunnan Province |
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| Jiang Xuezhong,Wang Sumin and Yang Xiangdong.Paleoclimatic and Environmental Changes Over the Last 30000 Years in Heqing Basin,Yunnan Province[J].Journal of Lake Science,1998,10(2):10-16. |
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| Authors: | Jiang Xuezhong Wang Sumin and Yang Xiangdong |
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| Institution: | Lake Sedimentation and Envionment Lao.,Nanjing Institute of Geography and Limnology, CAS. Nanjing 210008,Lake Sedimentation and Envionment Lao.,Nanjing Institute of Geography and Limnology, CAS. Nanjing 210008 and Lake Sedimentation and Envionment Lao.,Nanjing Institute of Geography and Limnology, CAS. Nanjing 210008 |
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| Abstract: | Heqing Basin lies in the ecotones of the southeast monsoon and southwest monsoon.According to the synthetic analysis of the top 8. 11m core, we have reconstructed the history of paleoclimatic and environmental changes in the past 30ka. The study suggsts that Heqing Basin underwent a climate of cold-wet and warm-dry on a long-time scale. During the lastGlaciation. perhaps because of the frontal surface, there appeared great precipitation.responsible for the highest lake level. At the beginning of the Post Glacial. about 14. 2kaBP.the basin was cut off. |
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| Keywords: | Paleomonsoon paleoenvironmental changes Last Gracial Age Heqing Basin |
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