土壤中杀虫剂动态仿真模型

土壤中杀虫剂动态仿真模型

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Contributor(s)

Initial contribute: 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Application-focused categoriesNatural-perspectiveLand regions
Application-focused categoriesHuman-perspectiveDevelopment activities
Application-focused categoriesHuman-perspectiveEconomic activities

Model Description

Chinese {{currentDetailLanguage}} Chinese

土壤中杀虫剂动态仿真模型

1. 描述对流-扩散的杀虫剂的迁移模型为

 

在稳定水流的条件下(也就是):

 

2. 保持力和转化力模型

(1)平衡模型:

①线性方程:

 

②Langmuir方程:

 

③Freundlich方程:

 

④修正了的Kjelland方程:

 

⑤接近平衡的部分:

 

(2)Kinetic模型:

①线性方程:

 

②Langmuir方程:

 

③Freundlich方程:

 

④两个地点:

 

(3)降解模型:

①一阶方程:

 

②幂速率:

 

③双曲线:

 

式中,C是溶解阶段的浓度;Cm是最大溶解度;D是杀虫剂扩散系数;QFRE是平衡时的吸附部分;h是土壤水势;K(Θ)是土壤水压传导性;k1k2k3是经验吸附等温常数;kd1是降解率常数;kd2是经验降解常数;kr是吸附-解吸附率常数;q是达西土壤水流量;Q是杀虫剂降解的下沉时间;S是吸附阶段浓度;S1是在“快速”地点中吸附阶段浓度;S2是在“慢速”地点中吸附阶段浓度;Si是初始的吸附浓度;Sm是最大吸附浓度;t是时间,t1/2是土壤中杀虫剂生存期的一半;U是被根吸收的土壤水的下沉时间;v是平均的空隙水速度;z是距离;Θ是土壤水的体积容量;ρ是土壤的体积密度。

 

参考文献

Rao P S C,Jessup R E:描述土壤中杀虫剂动力学的仿真模型的发展和验证。Ecological Modelling,1982,16

How to Cite

《资源环境数学模型手册》 (2018). 土壤中杀虫剂动态仿真模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/d6d8c566-e7fd-4994-9563-5745e559ded0
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History

Last modifier : 
XiaoYu He
Last modify time : 
2020-12-29
Modify times : 
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Contributor

Initial contribute: 2018-12-04

Co-contributor(s)

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
View
Is authorship not correct? Feedback

History

Last modifier : 
XiaoYu He
Last modify time : 
2020-12-29
Modify times : 
View History

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