| 洱海近代气候变化的化学记录 |
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| 引用本文： | 陈敬安,万国江,陈振楼,黄荣贵.洱海近代气候变化的化学记录[J].地理科学,2000,20(1):83-87. |
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| 作者姓名： | 陈敬安 万国江 陈振楼 黄荣贵 |
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| 作者单位： | 中国科学院地球化学研究所环境地球化学国家重点实验室,贵州,贵阳,550002 |
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| 基金项目： | 国家自然科学基金!(批准号 :49894170 ),中国科学院重大项目专题资助项目!(KZ95 1-A1-4 0 2 -0 6-0 4) |
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| 摘 要： | 对洱海现代沉积物进行采样,将放射性核素精确计年与沉积物化学记录研究相结合,成功地恢复了洱海近６５０年来的气候与环境变迁。研究结果表明,洱海区域气候主要表现为暖干与冷湿相交替的气候演替类型,且存在约２００年时间尺度的变化准周期,目前正入于暖干期末期－冷湿期初期,预计气温将有所下降,降雨量将有所增加。
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| 关 键 词： | 湖泊沉积物 化学记录 气候变化 洱海 古气候 |
| 文章编号： | 1000-0690(2000)01-0083-05 |
Recent Climatic Change and Its Chemical Records in Lake Erhai |
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| CHEN Jing an,WAN Guo jiang,CHEN Zhen lou,HUANG Rong gui.Recent Climatic Change and Its Chemical Records in Lake Erhai[J].Scientia Geographica Sinica,2000,20(1):83-87. |
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| Authors: | CHEN Jing an WAN Guo jiang CHEN Zhen lou HUANG Rong gui |
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| Abstract: | As a main lodging of surface
substances, the plateau-lake sediment continuously records the information of regional
climate and environment with high-resolution, and has major implications for
reconstructing short time-scale climatic changes. Through careful sampling of recent
sediments and accurate dating by radionuclides, the evolutionary history of the regional
climate and environment in recent 650 years is reconstructed successfully by chemical
records in sediments of Lake Erhai. |
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| Keywords: | Lake sediments Chemical records Climatic changes Lake Erhai |
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