期刊论文

Effects of Fe-Mn Modified Coconut Shell Biochar on Cadmium Speciation and Accumulation in Rice

Tie, B.

中文

环境科学研究

1001-6929

2019

32

5

857-865

10.13198/j.issn.1001-6929.2018.10.11

No.2017YFD0801505:国家重点研发计划 No.2015NK3015:湖南省重点研发计划项目 No.20160418:财政部专项

本校为第一且通讯机构

为研究椰壳炭(coconut shell biochar,简称“CSB”)及铁锰改性椰壳炭(Fe-Mn modified coconut shell biochar,简称“FM-CSB”)对土壤中Cd的钝化效果及对水稻吸收积累Cd的影响,采用室外水稻盆栽试验,比较了施加质量比为0. 5%的CSB与质量比为0. 05%、0. 1%、0. 2%、0. 5%的FM-CSB对南方酸性污染稻田土壤pH、Cd的形态变化及水稻各部位吸收积累Cd的差异性.结果表明:与CK相比,施加CSB与FM-CSB均能提升土壤pH,当FM-CSB施加量高于0. 1%时效果显著(P

In order to study the effect of coconut shell biochar (CSB) and Fe-Mn modified coconut shell biochar (FM-CSB) on passivation and accumulation of Cd by rice in Cd contaminated soil, an outdoor rice pot experiment was conducted by addition of 0.5% CSB and 0.05%, 0.1%, 0.2%, 0.5% Fe-Mn modified coconut shell biochar (FM-CSB) to the southern acid-contaminated paddy soil. The changes in soil pH, Cd speciation and content in various parts of rice in the treatment group and control group were compared. The results showed that addition of CSB and FM-CS...