Effects of soil temperature on degradation of oxytetracycline in soils

文献类型： 外文期刊

第一作者： Li Zhao-jun

作者： Li Zhao-jun;Fan Fei-fei;Long Jian

作者机构：

关键词： Soil temperature;oxytetracycline;degradation;soils

期刊名称：RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT （ 影响因子：0.636； 五年影响因子：0.511 ）

ISSN： 0972-0626

年卷期： 2013 年 17 卷 4 期

页码：

收录情况： SCI

摘要： Antibiotics, especially tetracyclines (TCs) are widely used in agriculture in world. The adverse effects of TCs contaminants on non-targets organisms have generated an interest in the fate of TCs in soil environment. In order to illustrate the effects of soil temperature on degradation of TCs such as oxytetracycline (OTC) in soils, the degradation of OTC in three soils including fluvo-aquic soil, black soil and red soil were investigated at the temperature of 5 degrees C, 15 degrees C, 25 degrees C respectively. The contents of OTC in three soils decreased gradually with time. The degradation rate of OTC was higher at 25 degrees C than at 5 degrees Cand 15 degrees C. The degradation curve of OTC in three soils could be described by the first-order kinetic model and the correlation coefficients ranged from 0.8895 to 0.9922. Under the same conditions, OTC degradation rate was higher at the initial added level of 20 mg kg(-1) than that at the initial added level of 200 mg kg(-1). The differences in degradation of OTC in three soils were also observed. OTC degradation in fluvo-aquic soil is faster than that in the other two soils.

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