藏系绵羊种群结构及其最优出栏方案模型

藏系绵羊种群结构及其最优出栏方案模型

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Initial contribute: 2018-12-04

Authorship

:  
岳天祥编著
:  
yue@lreis.ac.cn
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藏系绵羊种群结构及其最优出栏方案模型

    1)藏羊种群的性别年龄结构状态模型:

式中,为整个羊群状态;A为状态转移矩阵;反映了羊群本身自然发展变化的情况;为人为控制量。

2)计算最优藏羊种群结构及其最优出栏方案模型:

式中,分别为第组羊的出栏收益的系数和存栏羊只带来的收益的系数。

 

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最优出栏方案最优化的探讨。生态学报,198442

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《资源环境数学模型手册》 (2018). 藏系绵羊种群结构及其最优出栏方案模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/559498bd-a6f5-4339-92db-3c3800f4dbd5
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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

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Authorship

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

History

Last modifier
XiaoYu He
Last modify time
2020-12-28
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