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不同水分管理下镉污染红壤钝化修复稳定性及其对氮磷有效性的影响
引用本文:孙国红,李剑睿,徐应明,秦旭,梁学峰,孙约兵,杨磊,董晋峰.不同水分管理下镉污染红壤钝化修复稳定性及其对氮磷有效性的影响[J].农业环境科学学报,2015,34(11):2105-2113.
作者姓名:孙国红  李剑睿  徐应明  秦旭  梁学峰  孙约兵  杨磊  董晋峰
作者单位:天津农学院工程技术学院, 天津 300384,农业部产地环境质量重点实验室, 天津 300191;农业部环境保护科研监测所, 农田土壤重金属污染修复创新团队, 天津 300191,农业部产地环境质量重点实验室, 天津 300191;农业部环境保护科研监测所, 农田土壤重金属污染修复创新团队, 天津 300191,农业部产地环境质量重点实验室, 天津 300191;农业部环境保护科研监测所, 农田土壤重金属污染修复创新团队, 天津 300191,农业部产地环境质量重点实验室, 天津 300191;农业部环境保护科研监测所, 农田土壤重金属污染修复创新团队, 天津 300191,农业部产地环境质量重点实验室, 天津 300191;农业部环境保护科研监测所, 农田土壤重金属污染修复创新团队, 天津 300191,天津农学院工程技术学院, 天津 300384,天津农学院工程技术学院, 天津 300384
基金项目:国家自然科学基金项目(21177068);中国农业科学院创新工程项目(2014-cxgc-xym);农业部产地环境质量重点实验室开放基金项目(2013-KFJJ-01);公益性行业(农业)科研专项(201203045)
摘    要:采用连续两年盆栽试验,研究在不同水分管理(淹水灌溉、干湿交替灌溉和湿润灌溉)条件下,生物炭和鸡粪复配对红壤镉污染钝化修复效应和稳定性及其土壤氮磷有效性的影响机制.结果表明,经过连续两年钝化修复处理,与第一年实验各相应处理相比,第二年的稻谷产量增加幅度为2.7%~5.1%(P>0.05).长期淹水灌溉、干湿交替灌溉和湿润灌溉下,钝化处理后土壤交换态镉含量显著降低,连续两年钝化修复土壤有效镉含量间变化无显著性差异(P>0.05).钝化处理可以显著降低稻米中Cd含量,第一年降低率为34.5%~44.4%,第二年降低率为31.7%~45.0%,水稻根镉含量最大分别降低了33.6%和25.1%(P<0.05).钝化处理下,与对照组相比,长期淹水处理、干湿灌溉和湿润灌溉下水稻根表Fe(Ⅱ)含量分别增加27.3%、59.1%和65.0%(P<0.05).相关性分析表明,水稻根表Fe(Ⅱ)含量和根表Cd含量呈显著负相关性(r=0.61),糙米中Cd含量和根表Cd含量呈显著正相关性(r=0.56),与根表Fe(Ⅱ)含量呈显著负相关性(r=0.51).连续两年钝化修复,各处理的土壤碱解氮和有效磷含量间无显著变化.

关 键 词:水分  生物碳  鸡粪  钝化修复    土壤污染
收稿时间:2015/6/17 0:00:00

Effects of Water Management on Cadmium Stability and Nitrogen and Phosphorus Availability in Cadmium Polluted Red Soil After Immobilization Remediation
SUN Guo-hong,LI Jian-rui,XU Ying-ming,QIN Xu,LIANG Xue-feng,SUN Yue-bing,YANG Lei and DONG Jin-feng.Effects of Water Management on Cadmium Stability and Nitrogen and Phosphorus Availability in Cadmium Polluted Red Soil After Immobilization Remediation[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2015,34(11):2105-2113.
Authors:SUN Guo-hong  LI Jian-rui  XU Ying-ming  QIN Xu  LIANG Xue-feng  SUN Yue-bing  YANG Lei and DONG Jin-feng
Institution:College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China,Innovative Team of Remediation for Heavy Metal Contaminated Farmland, Agro-Environmental Protection Institute of Ministry of Agriculture, Tianjin 300191, China;Key Laboratory of Original Environmental Quality of Ministry of Agriculture, Tianjin 300191, China,Innovative Team of Remediation for Heavy Metal Contaminated Farmland, Agro-Environmental Protection Institute of Ministry of Agriculture, Tianjin 300191, China;Key Laboratory of Original Environmental Quality of Ministry of Agriculture, Tianjin 300191, China,Innovative Team of Remediation for Heavy Metal Contaminated Farmland, Agro-Environmental Protection Institute of Ministry of Agriculture, Tianjin 300191, China;Key Laboratory of Original Environmental Quality of Ministry of Agriculture, Tianjin 300191, China,Innovative Team of Remediation for Heavy Metal Contaminated Farmland, Agro-Environmental Protection Institute of Ministry of Agriculture, Tianjin 300191, China;Key Laboratory of Original Environmental Quality of Ministry of Agriculture, Tianjin 300191, China,Innovative Team of Remediation for Heavy Metal Contaminated Farmland, Agro-Environmental Protection Institute of Ministry of Agriculture, Tianjin 300191, China;Key Laboratory of Original Environmental Quality of Ministry of Agriculture, Tianjin 300191, China,College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China and College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China
Abstract:
Keywords:water management  biochar  chicken manure  immobilization remediation  cadmium  polluted soil
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