农药学学报2018，Vol.20Issue(1)：110-117,8.DOI:10.16801/j.issn.1008-7303.2018.0015
鱼藤酮在3种土壤中的吸附-解吸附特性
Adsorption and desorption behavior of rotenone in three different soils
摘要
Abstract
Static equilibrium experiments were conducted to investigate the adsorption and desorption behavior of rotenone in three different agricultural soils including sandy loam, clay loam and loam. All adsorption and desorption isotherms could be best described by the Freundlich model (R2≥0.9468). The results showed that the adsorption constant (Kf-ads) of rotenone in three soils were from 1.52 to 11.39. The order of the adsorption capacity of the soils to rotenone was: clay loam> sandy loam> loam. The desorption constant (Kf-des) of rotenone were from 1.02 to 4.55. The order of the desorption capacity was: loam> clay loam> sandy loam. The organic carbon distribution constant (KOC) of rotenone in three soils were 982, 1017 and 219 while the hysteresis index (H) were 0.6873, 0.5569 and 0.8923, respectively. The research indicated that rotenone was not easy to migrate in clay loam and sandy loamwhich exhibits hysteresis. On the contrast, it can migrate easily in loam with no hysteresis. The research provides theoretical guidance for the safety evaluation of rotenone in soils.关键词
鱼藤酮/土壤/吸附/解吸附/Freundlish模型Key words
rotenone/soils/adsorption/desorption/Freundlish model分类
资源环境引用本文复制引用
徐志英,任莉,陈小军,孟志远,宋玥颐,任亚军,徐顺飞,张迎娣..鱼藤酮在3种土壤中的吸附-解吸附特性[J].农药学学报,2018,20(1):110-117,8.基金项目
江苏省"六大人才高峰"高层次人才项目(NY-101) （NY-101）
扬州市科技计划项目 (YZ2015029) （YZ2015029）
扬州市科技计划 (产学研合作专项)(YZ2016252) （产学研合作专项）
扬州大学创新创业改革项目 (YZUCX2016-5C). （YZUCX2016-5C）
