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。
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.
出处
《岩矿测试》
CAS
CSCD
2007年第4期339-342,共4页
Rock and Mineral Analysis
基金
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资助(1212010310304)
