生态与农村环境学报2013，Vol.29Issue(1)：70-75,6.
土壤改良剂和红麻联合修复对多金属污染土壤中微生物群落功能的影响
Effects of Application of Soil Amendment and Cultivation of Red Ramie in Remedying Multi-Metal Contaminated Soils on Functions of Soil Microbial Community
摘要
Abstract
Chemical amendments were applied to and red ramie cultivated in multi-metal contaminated acid soil of Dabaoshan mining site, and then response of the microbial community therein in biological feature was investigated. The chemical amendments significantly improved activity of the soil microbial communities in plots before the cultivation of red ramie showing an order of manure + limestone ≈ fly ash > dolomite > limestone > control in effect. Treatment manure + limestone was the most significant in improving metabolic diversity of the microbial community. However, the order altered in the presence of red ramie into the one of manure + limestone > fly ash > limestone > control > dolomite. The effect of manure + limestone was more significant with red ramie than without the crop. In plots with red ramie, manure + limestone stimulated root exudation of L-serine, 4-hydroxy benzoic acid, L-arginine etc., enabling soil microbes to better use carbon sources of amine and amino acid types. Soil microbes in all the treatments were found to have been enhanced in ability to utilize saccharides, amino acids, amines and some others as carbon sources, which contributes to biological remediation of heavy metals contaminated soils.关键词
微生物代谢特征/重金属/污染土壤/改良剂/红麻/联合修复Key words
metabolic characteristics of microbe/ heavy metal/ contaminated soil/ amendment/ red ramie/ combined remediation分类
资源环境引用本文复制引用
杜瑞英..土壤改良剂和红麻联合修复对多金属污染土壤中微生物群落功能的影响[J].生态与农村环境学报,2013,29(1):70-75,6.基金项目
国家自然科学基金委-广东联合基金(U0833004) （U0833004）
广东省农业科学院院长基金(201116) （201116）
