杀虫剂对lumbricid种群的影响评价模型

杀虫剂对lumbricid种群的影响评价模型

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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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Method-focused categoriesProcess-perspectiveChemical process calculation
Method-focused categoriesProcess-perspectiveBiological process calculation

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Chinese {{currentDetailLanguage}} Chinese

杀虫剂对lumbricid种群的影响评价模型

(1)恒定压力:

假设对于一个经历了密度依赖性和密度无关性死亡的种群,下面分别是恒定的和年龄依赖性的背景死亡率:

 

式中,rm是每单位表面积上的最大繁殖率;γ是生长率的量度;lm是年长个体最大可以到达的尺寸;lb是出生时的长度;μ1是密度依赖性死亡率;N*是平衡密度;S(a)是存活率函数,x1x2k是参数,是个体年龄;τ是幼年期的持续时间;S0(a)=exp(-μa)μ0是恒定背景死亡率。

(2)动力学压力:

杀虫剂通常用短半衰期来描述,对于与杀虫剂的环境浓度成线性比例关系的动力学压力,受压维持力和繁殖能力常数ξω有下面的动力学值:

 

式中,[tox]0指初始压力大小;δ是指数式衰减率常数。

对于常数和年龄依赖性背景死亡率,分别有:

 

式中,r是指数式种群生长率;τ0是茧状态的持续期。

 

参考文献

Baveco J M,Roos A M:杀虫剂对lumbricid种群的影响评价——基于个体的建模方法。The Journal of Applied Ecology,1996,33

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How to Cite

《资源环境数学模型手册》 (2018). 杀虫剂对lumbricid种群的影响评价模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/8192d0ae-a700-4075-a786-fdbfdc07b9b2
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Last modifier : 
Xiaoyu He
Last modify time : 
2020-11-24
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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 : 
2020-11-24
Modify times : 
View History

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