NEWCOP模型

NEWCOP模型

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Contributor

contributed at 2018-12-04

Authorship

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

Earth System SubjectEarth Surface SystemBiosphere
Geography SubjectPhysical GeographyBiogeography

Detailed Description

NEWCOP模型

1)最优胸径增长方程:

 

 

式中,DmaxHmax分别为树种有记载的最大胸径和树高;g为生长参数。胸径(D)-树高(H)关系为H=130+b2D-b3D2

(2)实际胸径增长:

 

 

式中,fl,ft,fd和fn分别为光、温、水、肥条件的效应函数。

 

(3)树顶现有光(AL)对胸径增长的影响:

 

 

(4)>5℃有效积温(ED)对胸径增长的影响:

 

 

(5)生长季干旱天数(DD)份额对胸径增长的影响:

 

 

式中,ad为树种天然分布区内DD的最大值。

(6)土壤现有养分(AN)对胸径增长的影响:

 

 

式中,a,b,c,d,e和f为与树种耐性等级有关的经验参数。

 

参考文献

延晓冬等: 气候变化背景下小兴安岭天然林的模拟研究自然资源学报1999,14(4)

How to cite

《资源环境数学模型手册》 (2018). NEWCOP模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/1cb7dfaa-75c4-49f2-bd25-15371bd6b06e
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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? Feed back

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