作物生理模型

作物生理模型

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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-perspectiveBiological process calculation

Model Description

Chinese {{currentDetailLanguage}} Chinese

作物生理模型

 

1.  小麦发育阶段模型

式中,为发育速度;为日平均气温;为日长;为光照临界日长;分别为不同发育阶段生育速度的下限温度和上限温度;为参数。

2.  冠层叶面光分布模型

(1)    直射光:

式中,为叶面平均太阳直射光强;分别为叶片的倾角和方位角;为太阳高度角和方位角;为第层水平面太阳直射光强度。

(2)    散射光

式中,为第层叶面散射辐射强度;为第层水平面散射光强度。

3.  光合作用与呼吸作用模型

(1)    单叶光合作用:

式中,为叶面总光合速率;为叶面光合有效辐射;为光――光合作用曲线的初始斜率;的渐进值。

(2)    群体光合速率:

式中,为日总光合量;为叶面积深度;为单位叶面积光合速率;为叶面积随倾角、方位角的分布密度;为根据三基点温度与光合作用的关系建立的隶属函数。

(3)    呼吸作用:

式中,为群体日净光合量;分别为日维持呼吸量和日生长呼吸量;转化为碳水化合物的转换系数。

4.  物质分配模型

式中,分别为第日根茎、叶、穗的干物重表示日增量;转化为干物重的转换系数;为第的干物重

 

参考文献:

刘建栋,傅抱璞,林振山等:冬小麦光合生产潜力数值模拟。地理研究,1998,171

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How to Cite

《资源环境数学模型手册》 (2018). 作物生理模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/d6c8a0cb-e803-464f-ab5d-31a1845e2d2f
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Last modifier : 
Mingyuan Li
Last modify time : 
2020-12-21
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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 : 
Mingyuan Li
Last modify time : 
2020-12-21
Modify times : 
View History

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