冠层表面阻力与环境因子关系模型

冠层表面阻力与环境因子关系模型

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Contributor(s)

Initial contribute: 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Classification(s)

Application-focused categoriesNatural-perspectiveLand regions
Application-focused categoriesHuman-perspectiveDevelopment activities
Application-focused categoriesIntegrated-perspectiveRegional scale

Model Description

Chinese {{currentDetailLanguage}} Chinese

冠层表面阻力与环境因子关系模型

1)冠层表面阻力计算公式:

 

 

式中rc为冠层表面阻力;ra为水汽和热量的空气动力学阻力,U为风速,为摩擦速度;为饱和水汽压-温度曲线斜率;γ为干湿常数;Le为蒸散潜热;Lem为土壤-作物系统不受水分威胁时的蒸散潜热。

(2)冠层表面阻力与环境因子关系模型:

 

 

式中rcmin为最小冠层表面阻力;St为太阳总辐射;D为饱和水汽压;T为气温;θ为土壤含水量;F1St)为太阳辐射胁迫函数;F2D)为饱和水汽压差胁迫函数;F3T)为温度胁迫函数;F4θ)为土壤水分胁迫函数;为参数,θf为田间持水量,θw为凋萎湿度。

(3)标准差和拟合度计算公式:

 

 

式中rms,di分别为标准差和拟合度;PiOi分别为模拟值和观测值;Om为观测平均值;n为样品个数。

 

参考文献

莫兴国: 冠层表面阻力与环境因子关系模型及其在蒸散估算中的应用地理研究1997,16(2)

How to Cite

《资源环境数学模型手册》 (2018). 冠层表面阻力与环境因子关系模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/1c5766c6-1367-4f89-a359-414141f857c1
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History

Last modifier : 
Zhiyi Zhu
Last modify time : 
2020-11-07
Modify times : 
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Contributor

Initial contribute: 2018-12-04

Co-contributor(s)

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
View
Is authorship not correct? Feedback

History

Last modifier : 
Zhiyi Zhu
Last modify time : 
2020-11-07
Modify times : 
View History

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