环境工程学报2017，Vol.11Issue(5)：3179-3186,8.DOI:10.12030/j.cjee.201608056
黑麦草对土壤中残留抗生素的降解及其对微生物活性的影响
Degradation of residual antibiotics in soils by ryegrass and its effect on microbial activity
摘要
Abstract
In order to study the remediation of contaminated soil with antibiotics,ryegrass was used to degrade the residual antibiotics in soils,the soil microbial ecological activity and the remediation process was also discussed.The results showed that the degradation rates of tetracycline,chlortetracycline,enrofloxacin,lomefloxacin,ciprofloxacin and norfloxacin in ryegrass were significantly higher than those in control(p ＜ 0.05).The degradation rate of tetracycline antibiotics was from 19.1％ to 27.7％,of which the degradation rate of chlortetracycline was highest from 11.4％ to 27.7％.There were subtle variations for sulfamethazine,with the degradation rate of 3.4％ to 8.3％.The degradation rate of quinolones was from 15.3％ to 28.8％,of which lomefloxacin and enrofloxacin were from 15.3％ to 28.8％,14.2％ to 28.0％,respectively.At the same time,ryegrass could reduce the inhibitory effect of antibiotics on soil microbial activity.Compared with the soil samples un planted with ryegrass,microbial respiratory and ammonification activity was 4.5 and 1.9 times of the control.In addition,antibiotics in soil residual and the root growth was found to have a certain correlation,root total surface area and soil antibiotics total residues showed a significant negative correlation (r =0.948,p ＜ 0.05).关键词
抗生素/土壤/黑麦草/微生物活性Key words
antibiotics/soil/ryegrass/microbial activity分类
资源环境引用本文复制引用
裴孟,梁玉婷,易良银,曹胜男,杨泽平,王丹丹,赵远..黑麦草对土壤中残留抗生素的降解及其对微生物活性的影响[J].环境工程学报,2017,11(5):3179-3186,8.基金项目
国家自然科学基金资助项目(41371256) （41371256）
国家科技支撑计划课题(2015BAC02B02-01) （2015BAC02B02-01）
