Effects of submerging and organic matter addition on Cd availability in paddy soils

摘要：

We incubated three types of soils to study the variation of soil pH, Eh, exchangeable Cd and their relationships under different redox conditions. The results showed that after submerging the exchangeable Cd of the red soil and fluvo-aquic soil decreased while that of the yellow brown soil increased. With addition of organic matter, soil flooding caused the exchangeable Cd to drop rapidly to a very low level for red soil, kept stable for fluvo-aquic soil and increased for yellow brown soil. The findings indicated that Cd availability under reductive conditions was closely related to the soil properties such as pH and Eh.

关键词： Cd paddy soils submergence organic matter

作者: Y. Ge Y. C. Li Q. S. Zhou C. H. Zhang

作者单位: College of Resources and Environmental Sciences, Nanjing Agricutural University, 1 Weigang, Nanjing, 210095, P. R. China

会议类型: 国际会议

会议名称: 第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)

会议地点: 北京

会议语种:英文

页码: 524-525

在线出版日期: 2007-07-15（万方平台首次上网日期，不代表论文的发表时间）