初级生产力分段线性模拟模型

初级生产力分段线性模拟模型

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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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初级生产力分段线性模拟模型

 (1)模拟草原的初级生产力:

在这个模型中由Thornth Waite-Mather方程计算潜在蒸散Ep:

Ep=16(10T/I)a (T>0)

式中, a=(0.675I3-77.1I2+17920I+492390)×10-6 ;  ; T是温度。

(2)潜在毛生产力(PGP):

 

式中, 是太阳辐射;的效率; 是正温度; 的效率; 是土壤水分蒸发蒸腾损失总量; 的效率; 是转化因子。

(3)初级净生产力(NPP)占毛生产力66%,寒冷季节草原的潜在净生产力为:

 

式中,是生产力因子。

 

参考资料

Cale W G, Jr:使用分段稳定性、分段线性数学方法模拟草原的初级生产力。 EcologicalModelling, 1979, 7

 

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How to Cite

《资源环境数学模型手册》 (2018). 初级生产力分段线性模拟模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/6adb60e6-9577-4f84-bf53-7ba800bed9c5
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Last modifier : 
Kai Wu
Last modify time : 
2020-12-18
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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 : 
Kai Wu
Last modify time : 
2020-12-18
Modify times : 
View History

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