| 高分辨湖泊沉积和孢粉记录对气候、水文变化的响应 |
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| 引用本文： | 于革.高分辨湖泊沉积和孢粉记录对气候、水文变化的响应[J].沉积学报,2011,29(1):118-124. |
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| 作者姓名： | 于革 |
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| 作者单位： | 中国科学院南京地理与湖泊研究所 南京 210008 |
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| 基金项目： | 国家科技重大专项湖泊富营养化治理与控制技术及工程示范主题(2008ZX07101-013-1); 中国科学院重要方向项目(KZCX2-YW-338-2)资助 |
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| 摘 要： | 通过对长江中游网湖钻孔高精度分层样品(1.5年/样品)的沉积学和孢粉学研究,试图揭示过去百年网湖在由开放到封闭体系变化中,沉积孢粉与气候、水文动力变化的过程及其相互关系.相关分析和低频滤波分析,反映出沉积物和孢粉的变化对流域降水和长江流量的敏感响应.在过去130年中的多雨洪水年份,湖泊受长江倒灌影响,沉积物以黏土细颗粒...
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| 关 键 词： | 沉积孢粉 通江湖泊 降水变化 长江历史洪水 百年过程 气候响应 |
| 收稿时间： | 1900-01-01 |
High-resolution Records of Lacustrine Sedimentology and Palynology Responding to Changes in Climate and Hydrology |
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| YU Ge.High-resolution Records of Lacustrine Sedimentology and Palynology Responding to Changes in Climate and Hydrology[J].Acta Sedimentologica Sinica,2011,29(1):118-124. |
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| Authors: | YU Ge |
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| Institution: | Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008 |
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| Abstract: | This paper studied high-resolution sedimentary pollen sequence(1.5 yr/e) of Wanghu Lake,in the middle reach of Yangtze River,and analyzed the relationships of changes in pollen types and contents,sediment granularity,and climate-hydrology features during the past hundred years when the lake turned from an open water system into closed basin.Correlation analysis for time series of pollen,granularity,catchment precipitation and river discharge,showed that significant linear relationships with 95% confidence l... |
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| Keywords: | sedimentary pollen river-linked lake precipitation changes historical floods of Yangtze River hundred-year processes response to climate |
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