中文摘要：

研究了环境因子对氟苯尼考在沉积物中降解的影响．结果表明，氟苯尼考在沉积物中的降解规律可以用一级动力学方程来描述；在10-30℃温度范围内，温度升高有利于其在沉积物中的降解，当温度为40℃时，其降解速率减小；微生物和有机质状况对氟苯尼考降解的影响存在显著性差异（在未处理沉积物中的降解半衰期为1．70d，而灭菌和去除有机质后的半衰期分别为6．73，11．64d）；氧气状况对氟苯尼考降解影响不显著。厌氧条件下降解速率较好氧条件下稍快．

英文摘要：

The effect of environmental factors on the degradation of florfenicol in marine sediment was studied. The degradation of florfenicol in the marine sediment could be described by the first-order kinetics equation.The increase of temperature was benefit to the degradation of florfenicol in the sediment from 10 to 30℃. But the degradation rate decreased when the temperature reached 40℃. The microorganism and organic matter affected the degradation rate of florfenicol in the sediment significantly （the degradation half-life of florfenicol was 1.70 d in the untreated sediment, while 6.73 and 11.64 d in the sterilized and no organic matter sediment respectively）. The oxygen did not affect the degradation much, and the degradation rate under anaerobic condition was slightly more rapid than that under aerobic condition.