诺氟沙星
降级(电信)
土壤呼吸
化学
微生物降解
环境化学
土壤水分
土壤退化
肥料
微生物
环境科学
农学
土壤科学
细菌
生物
抗生素
生物化学
电信
遗传学
环丙沙星
计算机科学
作者
Jun Yang,Guang‐Guo Ying,Shan Liu,Lijun Zhou,Jian‐Liang Zhao,Ran Tao,Ping’an Peng
标识
DOI:10.1080/03601234.2012.638886
摘要
This paper investigated the degradation kinetics of norfloxacin in a soil, and its effects on soil respiration and nitrogen transformation under different conditions. Compared to the sterile control, the degradation rates of norfloxacin in the non-sterile soil were greatly enhanced, suggesting that microorganisms played a major role in the degradation. Accelerated degradation for norfloxacin in the soil was observed with decreasing concentrations (30 mg/kg to 5 mg/kg) with its half-life decreasing from 62 days to 31 days. Amending swine manure into the soil and increasing the soil moisture level enhanced the biological degradation of norfloxacin. No obvious inhibition of norfloxacin on soil respiration was observed in the soil, while only slight effect on nitrogen transformation was found. The results suggested that norfloxacin at the reported environmental concentrations (<100 mg/kg) would have little effect on microbial activity and functions in the soils.
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