不同外源溶解性有机质对黄壤中土霉素降解的影响  

Effects of dissolved organic matter on the degradation of oxytetracycline on yellow soil

作　　者：范菲菲 朱健[2] 官小云[3] 彭艳[4] 

机构地区：[1]贵州省土壤肥料研究所,贵州贵阳550006 [2]贵州大学资源与环境工程学院,贵州贵阳550025 [3]宜宾职业技术学院校企合作办公室,四川宜宾644003 [4]贵州民族大学化学与环境科学学院,贵州贵阳550025

出　　处：《浙江农业学报》2015年第6期1056-1060,共5页Acta Agriculturae Zhejiangensis

基　　金：贵州省科技厅项目(黔科合J字LKN[2013]27号;黔科合J字[2012]2104号)

摘　　要：选择土霉素为模式药物,研究了不同浓度的外源溶解性有机物质(有机肥、腐殖酸、L-苹果酸)对黄壤中土霉素降解的影响。结果表明,在加入有机肥、腐殖酸和L-苹果酸后,无论黄壤是否灭菌,土霉素在黄壤中的降解速率都显著提高,半衰期明显缩短,并且其降解动态均符合一级动力学方程。A soil cultural pot experiment was conducted to investigate the effects of dissolved organic matter（ manure,humic acid and malic acid） on the degradation of oxytetracycline in yellow soil. It was shown that whether the soil was sterilized or not,the degradation rate of oxytetracycline increased significantly and the half-life period turned shorter obviously after the addition of dissolved organic matter. The first order kinetics equation well fitted the degradation processes of oxytetracycline with different concentrations of dissolved organic matter.

关 键 词：溶解性有机质 土霉素 黄壤 降解 

分 类 号：S156[农业科学—土壤学] X131.3[农业科学—农业基础科学]