| 堆肥对重金属污染土壤Cu、Cd形态变化的影响 |
| |
| 引用本文： | 杨海征,胡红青,黄巧云,黄丽,张喆,刘永红.堆肥对重金属污染土壤Cu、Cd形态变化的影响[J].环境科学学报,2009,29(9):1842-1848. |
| |
| 作者姓名： | 杨海征 胡红青 黄巧云 黄丽 张喆 刘永红 |
| |
| 作者单位： | 1. 华中农业大学农业部亚热带农业资源与环境重点实验室,武汉,430070
2. 华中农业大学农业部亚热带农业资源与环境重点实验室,武汉,430070;华中农业大学理学院,武汉,430070 |
| |
| 基金项目： | 国家高技术研究发展计划(863)项目(No.2006AA06Z350,2007AA10Z408)~~ |
| |
| 摘 要： | 通过盆栽茼蒿试验研究了不同堆肥用量对重金属Cu、Cd污染土壤根际土和非根际土中Cu、Cd形态变化的影响.结果表明,随着堆肥用量的增加,非根际土和根际土交换态(含水溶态)Cu含量显著增加,最大值是对照的6.0倍;;有机结合态Cu含量在非根际土中显著升高,而在根际土中则先显著升高后降低,两者最大值是对照处理的1.1倍;;非根际土中无机结合态Cu含量先降低后升高;;非根际土和根际土残渣态Cu含量都先显著增加后基本不变.随着堆肥用量增加,非根际土中交换态(含水溶态)Cd含量显著降低,有机结合态和残渣态Cd含量显著升高,无机结合态Cd含量变化不明显;;根际土中,交换态(含水溶态)Cd含量先降低后升高,有机结合态Cd含量显著上升,无机结合态和残渣态Cd先上升后下降.因此,供试堆肥可作为修复剂减弱Cd的危害,但长期施用会造成Cu的累积,应慎重考虑.
|
| 关 键 词： | 堆肥 重金属 形态分析 |
| 收稿时间： | 12/8/2008 6:08:44 PM |
| 修稿时间： | 3/27/2009 8:58:03 PM |
Effects of compost on the fractions of copper and cadmium in heavy metal contaminated soil |
| |
| YANG Haizheng,HU Hongqing,HUANG Qiaoyun,HUANG Li,ZHANG Zhe and LIU Yonghong.Effects of compost on the fractions of copper and cadmium in heavy metal contaminated soil[J].Acta Scientiae Circumstantiae,2009,29(9):1842-1848. |
| |
| Authors: | YANG Haizheng HU Hongqing HUANG Qiaoyun HUANG Li ZHANG Zhe and LIU Yonghong |
| |
| Institution: | Key Laboratory of Subtropical Agriculture Resource and Environment, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070,Key Laboratory of Subtropical Agriculture Resource and Environment, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070,Key Laboratory of Subtropical Agriculture Resource and Environment, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070,Key Laboratory of Subtropical Agriculture Resource and Environment, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070,Key Laboratory of Subtropical Agriculture Resource and Environment, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070 and 1. Key Laboratory of Subtropical Agriculture Resource and Environment, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070; 2. College of Science, Huazhong Agricultural University, Wuhan 430070 |
| |
| Abstract: | A pot experiment was conducted to investigate the effect of applying different amounts of compost on the speciation of copper(Cu) and cadmium(Cd) in non-rhizosphere and rhizosphere soil around chrysanthemums. With an increase of compost,the content of exchangeable Cu(including soluble Cu) in non-rhizosphere and rhizosphere soil increased 6.0 times over the control. The content of organic-bound Cu increased significantly in non-rhizosphere soil. However,in rhizosphere soil,the organic-bound Cu first increase... |
| |
| Keywords: | compost heavy metal speciation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
| 点击此处可从《环境科学学报》下载免费的PDF全文 |
|
