Effects of soil quality on fates of chlorimuron-ethyl in agricultural soils

被引：0
|
作者：
Wang, M. [1 ]
Chen, W. [1 ]
Markert, B. [2 ]
机构：
[1] Chinese Acad Sci, State Key Lab Urban & Reg Ecol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
[2] Int Hsch Inst Zittau, Lehrstuhl Umweltverfahrenstech, D-02763 Zittau, Germany
来源：
AGROCHIMICA | 2010年 / 54卷 / 04期
关键词：
barren soil; ehlorimuron-ethyl; degradation; K-oc; pH; DEGRADATION; MANAGEMENT; HERBICIDES; SORPTION; CADMIUM; TILLAGE; METHYL;
D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Fates of chlorimuron-ethyl were investigated in barren soils and farm soils for the purpose of better understanding of its persistence in fields and offering valid parameters for its eco- risk assessment. The degradation of chlorimuron-ethyl occurred mainly by chemical processes and fitted well to the first order kinetic models, with degradation rate constant k of 0.021 +/- 0.002 and 0.033 +/- 0.005, and half lives t(1/2) of 32.7 and 21.4 in barren soils and farm soils, respectively. k negatively, while t(1/2) positively correlated with K-OC and pH at a significant level of p<0.05. The persistence of chlorimuronethyl was caused by the adsorption to soil organic matter.
引用
收藏
页码：245 / 256
页数：12
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