摘要
采用140La放射示踪技术，研究了稀土元素镧（La）在模拟水生态系统各组分中的迁移分布规律．并建立了相应的数学模型．结果表明，La在模拟水生态系统各组分中的积累率大小依次为：金鱼藻＞底泥＞螺蛳＞鱼，La在系统内的动态变化规律可用封闭分室模型来描述．
The rules of transportation and distribution of lanthanum in each component of simulated aquatic ecosystem were studied by using tracer isotope140La, and mathematical models for simulating the behaviour of lanthanum were built. The results showed thai the contents of lanthanum in each component of simulated aquatic ecosystem were as: honewort > sediment > snail > fish, and the kinetic behaviour of lanthanum in the simulated aquatic ecosystem could be described by closed-five-component models.
出处
《应用与环境生物学报》
CAS
CSCD
1998年第3期267-270,共4页
Chinese Journal of Applied and Environmental Biology
基金
浙江省自然科学基金
关键词
稀土元素
镧
水生态系统
动力学模型
rare-earth element
lanthanum
aquatic ecosystem
kinetic model
