农田中净辐射的计算

农田中净辐射的计算

  75

Contributor

contributed at 2018-12-04

Authorship

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

Classification(s)

Geography SubjectPhysical GeographyEcosystem

Detailed Description

农田中净辐射的计算

 

(1) Monsi-Saeki公式:

式中,a为单位有效遮光面积消光系数;s分别为冠顶和距地面y处的辐射强度;F(y)为由冠层表面向下累积的叶面积指数。

(2) 2/3H为界面,冠层上下两部分的净辐射B(z)随高度变化模型:

式中,分别为地面和2/3H处的净辐射;分别为冠层上下两部分的经验系数。

(3) 任一层次的净辐射模型:

式中,B(j)为第j层的净辐射(j=1,2,3)为冠层顶部的净辐射;为净辐射的消光系数;A(j)为第j层及其以上的叶面积指数。

参考文献

申双和,周英,李秉柏等:冬小麦农田中净辐射的研究。植物生态学报,1999,23(2)

How to cite

《资源环境数学模型手册》 (2018). 农田中净辐射的计算, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/6b5a76b4-0cf8-4313-bd30-9cd0cf3d60fc
Copy

QR Code

Contributor

contributed at 2018-12-04

Authorship

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

QR Code

You can link related {{typeName}} from your personal space to this model item, or you can create a new {{typeName.toLowerCase()}}.

Model Content & Service

These authorship information will be submitted to the contributor to review.