种群结构及其出栏方案分季最优化模型

种群结构及其出栏方案分季最优化模型

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contributed at 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Geography SubjectPhysical GeographyEcosystem

Detailed Description

种群结构及其出栏方案分季最优化模型

    1)种群季动态模型:

式中,NU均为变量,依次分别为组羊只数量和组出栏数量;A为组间转移系数;B为出栏对组羊只数量的影响参数;为组号;t为年份;s为季代号。

2)分季最优化的线性规划模型:


式中,c为出栏羊只的收益系数;d为存栏羊只的收益系数;g为羊只平均采食量系数;cdg加下标和下标s后,都表示某组某季的该项系数。

 

 

参考文献

    董全,皮南林,许新宜等:海北藏系绵羊种群结构及其出栏方案分季最优化的探讨。生态学报,198772

How to cite

《资源环境数学模型手册》 (2018). 种群结构及其出栏方案分季最优化模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/acea26e3-81f7-4294-87d9-8c1395c098b3
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Contributor

contributed at 2018-12-04

Authorship

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

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