| 土壤频繁应用杀虫剂的降解动力学统一模型 |
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| 作者姓名： | WANG Zong-Sheng LIU Duo-Sen ZHANG Shui-Ming |
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| 作者单位： | [1]InstituteofSoilSocience,AcademiaSinica,P.O.Box821,Nanjing210008（China） [2]InstituteofSoilSocience,Academ |
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| 基金项目： | *1Project supported by the National Natural Science Foundation of China. |
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| 摘 要： | This paper deduces a kinetic model for microbial degradation of pesticides in soils:x=x0(M/M-m0 m0exp(μt)])^kM/μ where x is the concentration of pestcide at time t,x0 the initial concentration of the pesticide,m0 the initial number of pesticide-degrading microogranisms,M the carrying capacity for the microorganisms,μ the specific growth rate of the microorganisms,and k the rate constant for the pesticide degradation.In periodic applications of pesticides,this model can be used to continumously describe every degradation curve.Whether a lag phase occurs or not,we can obtain the minimum residue of the pesticide(xe): xc=xdexp(-kMτ)/1-exp(-kMτ)]where τ the regular time intervals between applications ,and xd the dosage of the pesticide.
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| 关 键 词： | 微生物 一元化模型 动力学模型 土壤 杀虫剂 降解 |
A unified model for the degradation kinetics of pesticides applied continually to soils |
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| WANG Zong-Sheng,LIU Duo-Sen,ZHANG Shui-Ming.A unified model for the degradation kinetics of pesticides applied continually to soils[J].Pedosphere,1997,7(1):9-14. |
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| Authors: | WANG Zong-Sheng LIU Duo-Sen and ZHANG Shui-Ming |
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| Institution: | Institute of Soil Science, Academia Silica, P. O. Box 821, Nanjing 210008 (China);Institute of Soil Science, Academia Silica, P. O. Box 821, Nanjing 210008 (China);Institute of Soil Science, Academia Silica, P. O. Box 821, Nanjing 210008 (China) |
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| Abstract: | |
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| Keywords: | microorganisms pesticide degradation unified model |
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