水平植物群丛中的光线测定模型

水平植物群丛中的光线测定模型

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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-perspectivePhysical process calculation

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水平植物群丛中的光线测定模型 

(1)植物群丛内向上和向下的辐射流:

式中,φ+φ-是植物群丛内向上和向下的辐射流;A是土地表层每单位面积累积的叶面积;tr是叶片传输和反射的系数。方程的求解条件为+=φL+在植物群丛的顶部,

A=L(叶面积指数)并且在A=0φ-=rGφ+(rG是地表的反射系数)

 ,

 ,

 , 

(2)忽略rG作为整体的植物群丛透射系数为:

 

(3)植物群丛的反射系数为:

   

式中, , 

参考文献

    CowanIR:水平植物群丛中的光线。Journal of Applied Ecology,1971,8(2)

How to Cite

《资源环境数学模型手册》 (2018). 水平植物群丛中的光线测定模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/66659b17-9108-45c0-b877-43a186e4e24a
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Last modifier : 
Zhen Qian
Last modify time : 
2020-11-01
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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? Feedback

History

Last modifier : 
Zhen Qian
Last modify time : 
2020-11-01
Modify times : 
View History

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