| 洞庭湖镉迁移转化的马尔可夫模型评价 |
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| 引用本文： | 张建新,邢旭东.洞庭湖镉迁移转化的马尔可夫模型评价[J].岩矿测试,2007,26(4):339-342. |
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| 作者姓名： | 张建新 邢旭东 |
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| 作者单位： | 湖南省地质研究所,湖南,长沙,410007 |
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| 基金项目： | 国土资源地质大调查湖南省洞庭湖区生态地球化学调查项目 |
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| 摘 要： | 讨论了在现时泥沙、水体、鱼类、藻类的含镉状态下洞庭湖的输入输出通量；并以其为例，在简要介绍马尔可夫链数学方法的基础上，建立了湖泊生态系统中镉迁移转化的马尔可夫链数学模型，初步评价了当洞庭湖不断有镉加入、系统到达状态稳定时各种介质中的镉总量及镉的迁移转化趋势。
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| 关 键 词： | 生态地球化学 马尔可夫链 湖泊生态系统 镉通量 |
| 文章编号： | 0254-5357（2007）04-0339-04 |
| 修稿时间： | 2007-03-122007-04-25 |
Evaluation on Migration and Conversion of Cd in the Dongting Lake Based on Markov Model |
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| ZHANG Jian-xin,XING Xu-dong.Evaluation on Migration and Conversion of Cd in the Dongting Lake Based on Markov Model[J].Rock and Mineral Analysis,2007,26(4):339-342. |
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| Authors: | ZHANG Jian-xin XING Xu-dong |
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| Institution: | Geological Institute of Hunan Province, Changsha 410007, China |
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| Abstract: | The input and output fluxes of heavy metal cadmium are studied based on the data of cadmium distribution in media of lake sediment, water body, fishes, algae in the Dongting lake, On the basis of the results from this study, a Markov chain model for the prediction of migration and conversion of Cd in lake ecosystem is established, Using this model, a conclusion that Cd is continu- ously imported is obtained and Cd contents in different media in the lake are calculated when the system reaches the stable state. And migration and conversion trends of Cd are predicted. |
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| Keywords: | ecology-geochemistry Markov chain lake ecosystem cadmium flux |
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