博落回对重金属铅镉吸收动力学的研究
毕业论文关键词：博落回； 铅、镉； 吸收动力学； 植物修复。
Research on Absorption Kinetics of Lead and Cadmium Uptake of Macleaya cordata
Abstract: Studies have shown that plants can be seen as a whole enzyme system, and the plant root uptake kinetics can be fitted with the improved Michaelis-Menten equation. In this study, Macleaya cordata.R.Rr. were treated with lead and cadmium stress, and the moors equation double reciprocal method was used to calculate the kinetics constant of the absorption kinetics at different concentration gradients and time gradients, and Vmax, and further explored the kinetics of the absorption of heavy metal ions by the root system, compared with other plants (such as willow, ramie, etc.) on lead, cadmium absorption kinetic characteristics, so as to lay the theoretical foundation for the study of heavy metal pollution restoration. The results showed that the Vmax / Km values of lead and cadmium ions of Macleaya cordata.R.Rr. root kinetics were 7.0790 and 5.1991, and respectively, which showed good tolerance and had the potential to repair plants.
Key words: Macleaya cordata(Willd.)R.Br; lead、cadmium; Absorption kinetics; Plant repair.
目 录
摘要 1
关键词 1
Abstract 1
Key words 1
1 引言 1
1.1 该研究的背景及现状 1
1.1.1 我国土壤铅、镉污染的现状 1
1.1.2 根系离子吸收动力学研究概况 2
1.1.3 土壤重金属污染的植物修复的研究概况 2
1.2 该研究的展望 3
1.2.1 研究应用离子吸收动力学的意义和前景 3
1.2.2 植物修复重金属污染土壤过程中存在的主要问题 3
1.2.3 博落回的生态价值和应用前景 3
2 材料与方法 4
2.1 实验材料 4
2.2 试剂 4
2.3 仪器 4
2.4 实验方法 4
2.4.1 培养方法 4
2.4.2 胁迫处理 4
2.4.3 分析测试方法 5
2.4.4 数据分析及处理软件 5
3 结果与分析 5
3.1 不同浓度梯度下博落回对铅、镉的吸收动力学 5
3.1.1 不同浓度梯度下博落回对铅的吸收动力学 5
3.1.2 不同浓度梯度下博落回对镉的吸收动力学 6
3.1.3 不同浓度梯度下博落回对铅、镉的吸收动力学参数 6
3.2 不同时间梯度下博落回对铅、镉的吸收动力学 6
3.2.1 不同时间梯度下博落回对铅的吸收动力学 6
3.2.2 不同时间梯度下博落回对镉的吸收动力学 7
3.2.3 不同时间梯度下博落回对铅、镉的吸收动力学参数 8
下一篇：多孔吸附材料抗辐射性能研究