生态环境学报Issue(11)：1825-1829,5.
Cu、抗生素协同污染对土壤微生物活性的影响
Collaborative effects of Cu and antibiotic on soil microbial activities
摘要
Abstract
Heavy metals and antibiotics are two important pollutes in agricultural soil with the development of livestock and poultry industry. To assess the collaborative effects of Cu and sulfamethazine (SMA) on soil microbial ecology, soil microbial basal respiration (SBR), microbial carbon and nitrogen (MBC and MBN), potential nitrification rate (PNR), and soil enzyme activities (Urease and Dehydrogenase) were investigated in soils spiked with Cu and/or SMA. The results indicated that, when Cu was 100 mg·kg-1 in soils, the activities of SBR, MBC, MBN and Urease were higher in Cu and SMA co-contaminated soil samples than those in SMA presence alone soil samples, which might suggest they possessed cross-resistance of Cu and SMA when both of them co-existed in soils; when Cu was spiked at 500 mg·kg-1, activities of all the selected soil microbial properties were seriously inhabited in Cu and SMA joint polluted soils compared to those in SMA presence alone soils, indicating Cu and SMA might have a synergistic stress on soil microbial ecology. At the same time, in all the tested soils, when the concentration of SMA was≥10 mg·kg-1, activities of all soil microbial properties decreased with increasing degree of soil pollution by SMA, and they were all significantly negative correlation with SMA stress by correlative analysis.关键词
重金属/抗生素/协同污染/土壤微生物特征Key words
heavy metal/antibiotics/collaborative pollution/soil microbial properties分类
资源环境引用本文复制引用
刘爱菊,刘敏,李梦红,马骁轩,孙晓俊,王洪海..Cu、抗生素协同污染对土壤微生物活性的影响[J].生态环境学报,2013,(11):1825-1829,5.基金项目
国家自然科学基金（41001145），国家自然基金国际（地区）与合作交流项目（41210104050），山东理工大学青年教师支持计划 （）
