| 摘要: |
| 湖泊水中化学元素的停留时间(τl)是研究每种元素在湖泊水中的行为、迁移、相对活泼性和水下沉积矿物的一极好物理化学参数。对青海湖水及河水中13种化学元素的测定及对湖水中这些元素的停留时间研究结果表明:1.停留时间顺序:Cl >Na >K >B >Ni >Mg >Mn >Cr >Cu >Li >Al >Pb >Fe,且均小于它们在海洋水中的停留时间;2.湖水和海水中元素停留时间的对数值呈良好正相关;3.影响湖水中元素停留时间的主要因素为浓缩比(C浓缩比)和元素的水化能(L),并且,湖水中元素停留时间的对数值与浓缩比呈良好的正相关,与水化能呈良好的负相关。 |
| 关键词: 青海湖 水化能 停留时间 |
| DOI：10.18307/1992.0408 |
| 分类号: |
| 基金项目: |
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| The residence time of some chemical elements in Qinghai Lake |
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Yu Shengsong
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Institute of Salt Laks, Academia Sinica, Xining 810008
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| Abstract: |
| The residence time of some elements in lake water is a very useful physicochemical parameter in the study of the behaviour,imigration,relative activity and aqueous sediments of chemical elements in the lake water of Qinghai Lake.Measurements of 13 elements and study on their residence time in both the lake water and river water indicated that.(1) the sequence of the residence time is;Cl >Na >K >B >Ni >Mg >Mn >Cr >Cu >Li >Al >Pb >Fe.and all of them samaller than those of sea water; (2) the longarithemic values of the residence time have well positive correlation to those of sea water;(3) the main factors that influence the residence time of the eletnents in the lake water are the concentration ration (C) and the hydration energy (L) of elements,and the logarithm τl have well positive correlation and negative correlation to the logari-Cr and L respectively. |
| Key words: Qinghai Lake hydration energy residence time |
