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In-situ remediation of Cd-polluted paddy soil by clay minerals and their effects on nitrogen, phosphorus and enzymatic activities

文献类型：期刊论文

作者Han, Jun1,2; Liang, Xuefeng1; Xu, Yingming1; Xu, Yuanjian2; Lei, Yong3; Jiang, Ronghui3
刊名Huanjing Kexue Xuebao/Acta Scientiae Circumstantiae
出版日期2014
卷号34期号:11页码:2853-2860
ISSN号02532468
DOI10.13671/j.hjkxxb.2014.0756
英文摘要In-situ immobilization field demonstration of Cd-polluted paddy soil by palygorskite and sepiolite was conducted to investigate the immobilization effects according to a set of variables (grain yields and Cd concentration in brown rice; soil available Cd content, pH, hydrolyzable nitrogen, available phosphorus and soil enzymatic activities). Results showed that the application of palygorskite and sepiolite could increase soil pH, reduce the bioavailability of Cd in soil and Cd concentration in brown rice. The addition of palygorskite (2.00 kg·m-2) and sepiolite (2.25 kg·m-2) significantly decreased Cd accumulation in brown rice by contents of 54.6% and 73.5%, and Cd contents in brown rice were reduced to 0.32 and 0.18 mg·kg-1, respectively. The changes in soil enzymatic activities proved that certain metabolic recovery occurred after immobilization. Palygorskite and sepiolite had no obvious effects on hydrolyzable nitrogen contents, but reduced soil available phosphorus contents. According to the overall performance, palygorskite and sepiolite can be applied as immobilization agents for Cd polluted acid paddy soil.
语种中文
源URL[http://119.78.100.138/handle/2HOD01W0/9925]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Xu, Yingming
作者单位1.Key Laboratory of Original Environmental Quality of MOA, Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin, China;
2.Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China;
3.Guiyang Agricultural Bureau, Chenzhou, China
推荐引用方式
GB/T 7714		 Han, Jun,Liang, Xuefeng,Xu, Yingming,et al. In-situ remediation of Cd-polluted paddy soil by clay minerals and their effects on nitrogen, phosphorus and enzymatic activities[J]. Huanjing Kexue Xuebao/Acta Scientiae Circumstantiae,2014,34(11):2853-2860.
APA Han, Jun,Liang, Xuefeng,Xu, Yingming,Xu, Yuanjian,Lei, Yong,&Jiang, Ronghui.(2014).In-situ remediation of Cd-polluted paddy soil by clay minerals and their effects on nitrogen, phosphorus and enzymatic activities.Huanjing Kexue Xuebao/Acta Scientiae Circumstantiae,34(11),2853-2860.
MLA Han, Jun,et al."In-situ remediation of Cd-polluted paddy soil by clay minerals and their effects on nitrogen, phosphorus and enzymatic activities".Huanjing Kexue Xuebao/Acta Scientiae Circumstantiae 34.11(2014):2853-2860.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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