水土保持学报2013，Vol.27Issue(4)：157-160,165,5.
施用生物炭和零价铁粉对土壤中镉形态变化的影响
Effects of Applying Biochar and Zero Valent Iron on the Changes of Cadmium Forms in Soil
摘要
Abstract
A pot experiment was carried out to study on the changes of cadmium(Cd) forms in Cd contaminated soil by using biochar(BC) and zero valent iron(Fe0).The results showed that the forms of Cd were changed extremely by using BC and Fe0 alone or combined.The effect of combined BC and Fe0 was better than that of using them alone.Using BC alone decreased significantly the content of exchangeable Cd and enhanced the formation of carbonate-bound Cd,organic-bound Cd and residual form of Cd.And the enhanced effect of iron and manganese-bound Cd of soil was found in the treatment with Fe0.Activity index of Cd decreased from 4.36 to 0.97.The percentage of exchangeable Cd decreased from 81.04％ to 49.16％,but the carbonatebound Cd,manganese-bound Cd,organic-bound Cd and residual form of Cd increased from 9.44％ to 17.93％,2.95％ to 10.88％,2.66％ to 11.33％ and 3.91％ to 14.42％,respectively.The optimal treatment was found in the I3B2,which contained 0.045 g/kg iron and 3.0 g/kg biochar.关键词
生物碳/还原性铁粉/镉形态/污染土壤Key words
biochar/ reductive iron powder/ cadmium forms/ contaminated soil分类
农业科技引用本文复制引用
林国林,杜胜南,金兰淑,王鹤,孟军,刘宁..施用生物炭和零价铁粉对土壤中镉形态变化的影响[J].水土保持学报,2013,27(4):157-160,165,5.基金项目
国家自然科学基金项目(41201317) （41201317）
公益性行业(农业)科研专项(201303095) （农业）
