最优放牧模型

最优放牧模型

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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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Model Description

Chinese {{currentDetailLanguage}} Chinese

最优放牧模型
(1)假定物种生物量分布与覆盖分布相同,如果是时间时的物种生物量,:

式中,是物种占据的总植被覆盖部分;是在时间的总植物生物量。如果是无植被覆盖的部分,是物种占据的总空间部分。
(2)
定义8为在放牧制度
下所有多年生植物每年的生长量。对于指数,,没有被放牧;,轻度放牧;,适度的放牧;,重度放牧。表示在放牧制度下多年生草本每年被动物吃掉和变成碎屑的部分,则对于任意放牧制度,我们有时间

且有: 

转置矩阵T可定义为:
式中,是物种之间的每年植被覆盖转换率。
   
根据以上定义,则有:

 

参考文献

Swartzman G L,SinghJ S:一种使用连续模型的热带草原地区最优放牧策略的动力学程序设计方法。Journal of Applied Ecology,1974,11

 

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How to Cite

《资源环境数学模型手册》 (2018). 最优放牧模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/14162e66-5c7b-4629-946e-55e149589b05
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History

Last modifier : 
Xiaoyu He
Last modify time : 
2020-11-09
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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 : 
2020-11-09
Modify times : 
View History

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