| Effects of methamidophos and glyphosate on copper sorption-desorption behavior in soils |
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| 引用本文： | YU Ying,ZHOU Qixing & HE Zhenli Key Laboratory of Terrestrial Ecological Process,Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China, College of Natural Resources and Environmental Sciences,Zhejiang University,Hangzhou 310029,China. Effects of methamidophos and glyphosate on copper sorption-desorption behavior in soils[J]. 中国科学：生命科学英文版, 2005, 48(Z1) |
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| 作者姓名： | YU Ying ZHOU Qixing & HE Zhenli Key Laboratory of Terrestrial Ecological Process Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 China College of Natural Resources and Environmental Sciences Zhejiang University Hangzhou 310029 China |
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| 作者单位： | YU Ying，ZHOU Qixing & HE Zhenli Key Laboratory of Terrestrial Ecological Process，Institute of Applied Ecology，Chinese Academy of Sciences，Shenyang 110016，China; College of Natural Resources and Environmental Sciences，Zhejiang University，Hangzhou 310029，China |
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| 摘 要： | A batch-equilibration technique was employed to study the impact of two organo-phosphorus pesticides methamidophos (MDP) and glyphosate (GPS) on copper (Cu2+) sorption-desorption for phaeozem and burozem collected from Northeastern China. The addition of the two pesticides decreased Cu2+ sorption, increased Cu2+ desorption and prolonged the equilibrium time of Cu2+ sorption-desorption. But GPS appeared to exert a stronger influence on Cu2+ sorption-desorption due to its stronger complexion with Cu2+. When MDP was added, Cu2+ sorption-desorption was linearly correlated with MDP treatment concentrations. But in the presence of GPS, Cu2+ sorption first underwent a rapid decrease period, and then slowly tended towards a steady period. The reverse pattern could be found for Cu2+ desorption in the presence of GPS. Without pesticides and with the existence of MDP, Cu2+ sorption-desorption kinetics was well conformed to two-constant equation and Elovich equation. But that was not the case for Cu2+ desorption kin
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Effects of methamidophos and glyphosate on copper sorption-desorption behavior in soils |
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| YU Ying,ZHOU Qixing , HE Zhenli Key Laboratory of Terrestrial Ecological Process. Effects of methamidophos and glyphosate on copper sorption-desorption behavior in soils[J]. Science China Life sciences, 2005, 48(Z1) |
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| Authors: | YU Ying ZHOU Qixing & HE Zhenli Key Laboratory of Terrestrial Ecological Process |
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| Affiliation: | YU Ying,ZHOU Qixing & HE Zhenli Key Laboratory of Terrestrial Ecological Process,Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China, College of Natural Resources and Environmental Sciences,Zhejiang University,Hangzhou 310029,China |
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| Abstract: | A batch-equilibration technique was employed to study the impact of two organo-phosphorus pesticides methamidophos (MDP) and glyphosate (GPS) on copper (Cu2+) sorption-desorption for phaeozem and burozem collected from Northeastern China. The addition of the two pesticides decreased Cu2+ sorption, increased Cu2+ desorption and prolonged the equilibrium time of Cu2+ sorption-desorption. But GPS appeared to exert a stronger influence on Cu2+ sorption-desorption due to its stronger complexion with Cu2+. When MDP was added, Cu2+ sorption-desorption was linearly correlated with MDP treatment concentrations. But in the presence of GPS, Cu2+ sorption first underwent a rapid decrease period, and then slowly tended towards a steady period. The reverse pattern could be found for Cu2+ desorption in the presence of GPS. Without pesticides and with the existence of MDP, Cu2+ sorption-desorption kinetics was well conformed to two-constant equation and Elovich equation. But that was not the case for Cu2+ desorption kinetics in the presence of GPS although its sorption could be also described by these two equations. |
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| Keywords: | Cu sorption desorption methamidophos glyphosate phaeozem burozem |
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