低分辨率生态系统模型

低分辨率生态系统模型

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contributed at 2018-12-04

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

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Chinese {{currentDetailLanguage}} Chinese

低分辨率生态系统模型

(1)系统的控制方程:

式中,xi是指快速变量; yi是指慢速变量; τxτy分别是指xy的时间尺度特征。

(2)短周期现象:

由于yi相对于xi的变化速率太小,因此可以用一个常数项来代替yi:

 

 

 

 

式中,c是一个常数。

(1) 长周期现象:

式中,是生物学意义上的参数的结合,如吸气和呼气的频率; 代表快速变量的时间变化; 代表慢速变量外来填充的时间变化。

(2) 定义一个新的因变量:  则解决方案为:

如果f(t)x(t)是常数或者它们的作用变化缓慢,则这个表达式可以简化为:

 

y的渐近值为:

 

参考文献

Caparariis P D:论低分辩率生态系统模型的充分性。Ecological Modelling,1983/1984,21

 

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How to Cite

《资源环境数学模型手册》 (2018). 低分辨率生态系统模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/0d183972-c0ca-4975-a45c-8ee2044141e5
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Last modifier : 
Xiaoyu He
Last modify time : 
2020-12-28
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Contributor(s)

initial contribute: 2018-12-04

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 : 
2020-12-28
Modify times : 
View History

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