| 四万年以来青海湖的三期高湖面及其降水量研究 |
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| 引用本文： | 贾玉连,施雅风,范云崎.四万年以来青海湖的三期高湖面及其降水量研究[J].湖泊科学,2000,12(3):211-218. |
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| 作者姓名： | 贾玉连 施雅风 范云崎 |
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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： | 国家重点基础研究发展规划项目!(G980 40 80 0 )资助 |
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| 摘 要： | 孢粉学、地貌学与沉积学的证据揭示了青海湖自４０ｋａＢＰ以来经历了至少三期高湖面，即３０－４０ｋａＢＰ，１１－１３ｋａＢＰ，７．５－５ｋａＢＰ。其中第一期与第三期的高湖面是全球性暖温气候的产物，第二期的高湖面同暖温气修及高山区冰川消融均有关系。根据Ｍ．Ｎ．Ｂｙｄｕｋｋｏ（Ｍ．И．Ｂｙлｂｉｋｏ）公式和Ｊ．Ｅ．Ｋｕｔｚｂａｃｈ公式计算年蒸发量，依据封闭流域全流域水面平衡模式，模拟了青海湖在第一期与第三
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| 关 键 词： | 青海湖 古降水量 高湖面 |
| 收稿时间： | 1999/11/1 0:00:00 |
| 修稿时间： | 1999年11月1日 |
Water Balance of Paleolake Qinghai and Its Precipitation Estimation at Three High Lake-Level Stages since 40 kaBP |
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| JIA Yulian,SHI Yafeng and FAN Yunqi.Water Balance of Paleolake Qinghai and Its Precipitation Estimation at Three High Lake-Level Stages since 40 kaBP[J].Journal of Lake Science,2000,12(3):211-218. |
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| Authors: | JIA Yulian SHI Yafeng and FAN Yunqi |
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| Affiliation: | Nanjing Instituteof Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China,Nanjing Instituteof Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China and Nanjing Instituteof Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China |
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| Abstract: | Some evidences from geomorphy, pollen and sediment have shown paleolake Qinghai has undergone at least three high-level stages since 40kaBP i.e.30-40kaBP, 11-13kaBP, 7.5-5kaBP.The second high lake-level stage was relevant to ice melting and wet/warm climate, while the other two stages are relevant to the whole global wet/warm climate.Using M.N.Byduko's equation of heat and water balance, and J.E.Kutzbach's equation of energy balance to compute the ground evaporation, the hydrological and energy balance of paleolake Qinghai as well as the water balance model of the whole closed basin, is estimated, i.e., the paleoprecipations of paleolake Qinghai are 645±5mm° a-1 during 30-40kaBP, 595±15mm° a-1 during 7.5-5kaBP, which are 280mm and 235±15mm higher than current precipitation in Qinghai Lake area respectively-As a result, the corresponding high lake-level stages are deduced-During 30-40kaBP, 11-13kaBP and 7.5-5kaBP in Paleolake Qinghai, the paleo lake level might be 104m, 104m and 45m higher than current Qinghai Lake level respectively. |
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| Keywords: | 40kaBP |
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