间作农业生态系统的生态学方法

间作农业生态系统的生态学方法

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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
Application-focused categoriesHuman-perspectiveEconomic activities
Application-focused categoriesIntegrated-perspectiveRegional scale

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Chinese {{currentDetailLanguage}} Chinese

间作农业生态系统的生态学方法

(1)  一个植物种群的产量-密度关系:

  式中,w是一个植物个体的生物量产量; D是种群密  ;常数ABθ指各种生物学函数。

种群的整体产量为:

 竞争影响的强度为:

 式中,是竞争者一个单位生物量所引起的生物量的减少量(竞争系数); 是种群中第i个体的生物量;N是与研究的个体进行竞争的个体数量。

(2)  两个植物物种相互作用模型:

式中,是两个物种的整个种群的果实产量; 分别是两个物种的种群密度, , C是参数。

(3)  总相对值():

是间作值和最大单作值的比率:

 式中,是间作系统中第i农作物的货币价值是间农作系统中第i农作物的产量是单作系统中第i家作物的产量;农作物1是两个农作物中价值较大的那个。

 

参考文献

VandermeerJ, Ambrose R, Hansen M et al:一种设计间作农业生态系格的生态学方法――在密歇根州南部地区大豆和番茄的间作系态系统Ecological Modelling,1984,25

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How to Cite

《资源环境数学模型手册》 (2018). 间作农业生态系统的生态学方法, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/1c803221-1b16-469e-a360-3490d77ec40a
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Contributor(s)

Initial contribute: 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
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Last modifier : 
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Last modify time : 
2020-12-31
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