| 青海湖及其水系近30年来的化学变化 |
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| 引用本文： | 于升松.青海湖及其水系近30年来的化学变化[J].海洋与湖沼,1996,27(2):125-131. |
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| 作者姓名： | 于升松 |
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| 作者单位： | 中国科学院青海盐湖研究所!西宁，810008 |
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| 基金项目： | 国家自然科学基金!4880103 |
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| 摘 要： | 根据１９８５－１９８７年来１９８９－１９９１年对青海湖及其水系的考查资料，研究其化学变化。结果表明，近３０年来，青海湖及其入湖河流水系在萎缩过程中，水系总矿化度增加，逐渐咸化。除尕海水的Ｍｇ＾２＋；耳海水的Ｋ＾＋，ＳＯ＾２－４，ＣＯ３＾２－；人湖河流水的ＳＯ４＾２－离子浓度减小外，青海湖、尕海及耳海本中Ｎａ＾＋，Ｃｌ＾－，ＳＯ４＾２－离子增加速率较大，Ｃａ＾２＋，Ｍｇ＾２＋等离子增加速率较小。尕海
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| 关 键 词： | 青海湖 水系 化学变化 湖泊 |
| 收稿时间： | 1993/12/23 0:00:00 |
| 修稿时间： | 1994/6/17 0:00:00 |
CHEMICAL CHANGES OF QINGHAIHU LAKE AND ITS RIVER WATER SYSTEM IN THE LAST 30 YEARS |
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| Yu Shengsong.CHEMICAL CHANGES OF QINGHAIHU LAKE AND ITS RIVER WATER SYSTEM IN THE LAST 30 YEARS[J].Oceanologia Et Limnologia Sinica,1996,27(2):125-131. |
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| Authors: | Yu Shengsong |
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| Institution: | Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008 |
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| Abstract: | Qinghaihu Lake is China 's biggest inland brackish lake. Erhai Lake and Gahai Lake are its daughter lakes, About 50 rivers flow into the lake. As Qinghaihu Lake and rivers that flow into it shrink, the lake water salinity and mineralization have been increasing for nearly 30 years. Except for concentration of Mg2+ in Gahai Lake waters, K+, in Erhai Lake water and in rivers that flow into the lake decrease, all chemical component concentration in Qinghaihu Lake and that of other ions in the above-mentioned waters increase.But the annual average rate of increase is different, that of , Na+, Cl-, being higher, that of Ca2+, Mg2+ being lower. The increase rate of chemical component concentration in Gahai Lake waters is higher than that in other lakes. Water type has changed from to in Qinghaihu Lake and Gahai Lake waters,from to in Erhai Lake waters, from to in Buha and Hargai kivers, from to in Heima River and from to in Daotang River, and has been unchanged in Shaliu, Ganzi and Quanji Rivers. |
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| Keywords: | Qinghaihu Lake River water system Chemical changes |
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