| 碱渣对土壤中镉有效性的影响 |
| |
| 引用本文： | 郭利敏,艾绍英,唐明灯,李盟军,姚建武,王艳红,曾招兵.碱渣对土壤中镉有效性的影响[J].环境科学与技术,2011,34(4):100-103. |
| |
| 作者姓名： | 郭利敏 艾绍英 唐明灯 李盟军 姚建武 王艳红 曾招兵 |
| |
| 作者单位： | 1. 广东省农业科学院土壤肥料研究所,广东,广州,510640;西北农林科技大学资源环境学院,陕西,杨凌,712100
2. 广东省农业科学院土壤肥料研究所,广东,广州,510640;广东省养分资源循环利用与耕地保育重点实验室,广东,广州,510640 |
| |
| 基金项目： | 广东省社会发展项目，广东省农业领域重点专项项目资助 |
| |
| 摘 要： | 用盆栽试验研究碱渣及其用量对小白菜(Brassica chinesis)产量、镉吸收量,土壤pH及有效态镉含量的影响,以期为碱渣的利用提供新的途径。结果表明:碱渣对小白菜生长有促进作用,用量3 g/kg时增产效果最佳,与对照相比,增加了48.1%,继续增加用量小白菜产量增加幅度降低;施用碱渣显著提高土壤pH,且pH与施用量呈显著正相关(R=0.792,P<0.05)关系,但土壤有效态镉含量随着碱渣用量的增加呈递增趋势,与对照处理相比,用量为6 g/kg时增加22.0%,达显著水平;碱渣促进根系对镉吸收累积,与对照相比,碱渣处理根系镉含量增加了29.7%~61.0%,达显著水平,并有增加小白菜地上部镉含量的趋势。这说明碱渣能提高土壤镉有效性,促进植物对镉吸收,可用来强化镉污染土壤的植物修复。
|
| 关 键 词： | 碱渣 镉污染土壤 有效镉 小白菜 镉含量 |
Effect of Alkali Slag on Cadmium Bioavailability in the Contaminated Soil |
| |
| GUO Li-min,AI Shao-ying,TANG Ming-deng,LI Meng-jun,YAO Jian-wu,WANG Yan-hong,ZENG Zhao-bing.Effect of Alkali Slag on Cadmium Bioavailability in the Contaminated Soil[J].Environmental Science and Technology,2011,34(4):100-103. |
| |
| Authors: | GUO Li-min AI Shao-ying TANG Ming-deng LI Meng-jun YAO Jian-wu WANG Yan-hong ZENG Zhao-bing |
| |
| Institution: | GUO Li-min1,3,AI Shao-ying1,2*,TANG Ming-deng1,2,LI Meng-jun1,YAO Jian-wu1,WANG Yan-hong1,ZENG Zhao-bing1,2(1.Institute of Soil and Fertilizer,Guangdong Agricultural Science Academy,Guangzhou510640,China,2.Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation,3.School of Resource and Environmental Science,Northwest Agriculture and Forestry University,Yangling712100,China) |
| |
| Abstract: | Pot experiment was done to study the effects of alkali slag dosages on biomass and cadmium uptake of Brasscia chinensis,soil pH and DTPA-Cd in a Cd contaminated soil.Results indicated that application of alkali slag promoted the growth of Brassica chinensis.Biomass of Brassica chinensis increased by 48.1% compared with the control when addition of 3 g/kg,and then the rate of biomass increase reduced with the increase of dosage.Alkali slag increased soil pH significantly,and there was a positive correlation ... |
| |
| Keywords: | alkali slag Cd contaminated soil DTPA-Cd Brassica chinensis Cd concentration |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
