Influence of copper and cypermethrin on soil enzymes activity
Influence of cypermethrin(CPM) and copper(Cu) on soil catalase activity(CTA) and urease activity(UA) were studied after 7, 14, 21, 28 and 35 days of exposure under controlled conditions. The experimental approach was based on the orthogonal design. Five concentration levels for each pollutant (CPM and Cu) were studied. The results showed that CTA in all samples declined after application of Cu without addition of CPM. When concentration of CPM ranged from 0 to 150 mg·kg -1 (no addition of Cu), the variety of CTA was in the following: restrained-activated-restrained. The combined effect of CPM and Cu on soil depends largely on concentration of pollutants. Compared to CTA, UA in all samples were restrained weakly within the first 7 days, and activated over the control sample during the following incubation time. In comparison between two enzymes, catalase appears to be more suitable to be the indicator for the combined pollution of heavy metal and insecticides as urease.
copper cypermethrin CTA UA
J. LIU J.M. XIE Y.F. CHU Q. WANG X.M. L(U)
School of Energy and Power Engineering, Jiangsu University,212013 Zhenjiang, P. R. China;Department School of Chemistry and Chemical Engineering, Jiangsu University,212013 Zhenjiang, P. R. China School of Energy and Power Engineering, Jiangsu University,212013 Zhenjiang, P. R. China
国际会议
The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)
大连
英文
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）