The dissipation of cyazofamid and its main metabolite in soil response oppositely to biochar application
文献类型： 外文期刊
作者： Tang, Fan 1 ; Xu, Zhenlan 2 ; Gao, Mao 1 ; Li, Lingxiangyu 3 ; Li, Hua 4 ; Cheng, Haixiang 5 ; Zhang, Changpeng 2 ; Tian, 1 ;
作者机构： 1.Zhejiang Univ, Coll Environm & Resource Sci, Dept Environm Engn, Hangzhou 310058, Zhejiang, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, Hangzhou 310021, Zhejiang, Peoples R China
3.Zhejiang Sci Tech Univ, Sch Sci, Dept Chem, Hangzhou 310018, Zhejiang, Peoples R China
4.Zhejiang Acad Agr Sci, Inst Environm Resource Soil & Fertilizer, Hangzhou 310021, Zhejiang, Peoples R China
5.Quzhou Univ, Coll Chem & Mat Engn, Dept Environm Engn, Quzhou 324000, Peoples R China
关键词： Biochar; Soil; Cyazofamid; CCIM; Dissipation
期刊名称：CHEMOSPHERE （ 影响因子：7.086； 五年影响因子：6.956 ）
ISSN： 0045-6535
年卷期： 2019 年 218 卷
页码：
收录情况： SCI
摘要： Biochars derived from rice straw (RS), corn straw (CS), chicken manure (CM) and tire rubber (TR) were applied to soil to investigate their effects on the dissipation of cyazofamid and its metabolite CCIM (4-chloro-5-p-tolylimidazole-2-carbonitrile), with high acute toxicity compared to cyazofamid. The enhancement of cyazofamid dissipation followed the order of CS > RS > CM, whereas TR depressed the cyazofamid dissipation. Adsorption, hydrolysis and microbial degradation were all involved in cyazofamid dissipation. CM and CS enhanced the contribution of biodegradation to cyazofamid dissipation, which might be related with the shifted microbial community. More importantly, CCIM residual was drastically increased by 8-15 times after biochar application, regardless of biochar type. In total, this study shed light on the issue of build-up of metabolites in biochar-amended soil, especially for metabolites having higher toxicities than parent compounds, providing new insights into potential risk of biochar application for soil remediation. (C) 2018 Elsevier Ltd. All rights reserved.
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