| 植物修复重金属污染沉积物的模型仿真及验证 |
| 摘要点击 4284 全文点击 2238 投稿时间：2010-10-11 修订日期：2011-01-04 |
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| 中文关键词 植物修复 重金属 动态模型 仿真 验证 |
| 英文关键词 phytoremediation heavy metal dynamic model simulation verification |
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| 中文摘要 |
| 为了明确污染沉积物中的重金属铅被植物吸收和累积过程的动态变化规律，掌握重金属在植物中的迁移过程和植物吸收重金属数量随时间的变化趋势，采用植物吸收重金属铅的系统动力学修复机制模型，对植物吸收和累积重金属的动态过程进行模型仿真.通过在重金属污染沉积物中种植玉米的温室盆栽试验，在获取大量试验数据的基础上，对仿真模型进行了试验验证，结果表明植物对铅的吸收和累积规律与模型仿真所得结论基本吻合，从而验证了模型的合理性和有效性. |
| 英文摘要 |
| In order to obtain dynamic changes of uptake and translocation and accumulation amounts of heavy metal lead in contaminated sediments in plants over time, the dynamic process of uptake and accumulation of lead in plants were simulated by system dynamics mechanism model of plant uptake to lead. Verification test was conducted based on simulation model after gain mass of data through planting maize in heavy metal contaminated sediment by greenhouse cultivation. The results indicate that the results of uptake and the accumulation of lead by maize in experiments are consistent with the conclusions of theoretical simulation model. It is proved that the dynamics mechanism model of plant uptake to lead is reasonable and effective. |
