摘要
研究了Pb2 + 在土壤和改性土壤中的吸附特性 ;并通过盆栽实验 ,研究了在添加钝化剂条件下 ,添加外源Pb2 + 对油菜生长性状的影响和Pb2 + 在土壤 油菜系统中吸持、迁移和积累的特性。结果表明 :Pb2 + 对油菜生长具有刺激促进作用 ,Pb2 + 在油菜体内不同部位的分配规律为根 >茎叶。钝化剂对Pb2 + 具有良好的吸附钝化作用 ,可有效地抑制Pb2 +
Kinetic characteristics of lead adsorption in soil-water systems were discussed. Furthermore, effect of Pb pollution on cole growth and its adsorption, migration and accumulation in soil-cole systems under soil modifying measures were studied with pot experiment. The results showed that the transport of lead in the soil-water systems was a fast process. The adsorption of lead by cole was in order of root>stem and leaf. The application of modifier could effectively restrain the accumulation of lead ions in cole.
出处
《现代科学仪器》
2003年第1期62-65,共4页
Modern Scientific Instruments
基金
国家自然科学基金 (2 0 0 770 1 4 )
国家高技术研究发展计划 (2 0 0 1AA2 4 2 1 2 1 )
天津市自然科学基金 (0 2 360 791 1 )资助
关键词
土壤
油菜
功能膜材料
铅
吸附
迁移
Soil, cole, functionalized material, lead, adsorption, transport
