旱作产量潜势的计算公式

旱作产量潜势的计算公式

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contributed at 2018-12-04

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Affiliation:  
岳天祥编著
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yue@lreis.ac.cn
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Earth System SubjectEarth Surface SystemAnthroposphere
Geography SubjectHuman GeographyAgricultural Geography

Detailed Description

旱作产量潜势的计算公式

(1) 计算模型:

            

式中,Yd为旱作产量潜势;Ysi为光合生产潜力;为叶面积修正系数;f(T)为温度修正系数;f(W)为水分因子修正系数;i为第i生长时段,n为全生育期划分的总时段数。光合生产潜力的计算公式为:

                    

式中,A为经济系数;Cn为同化物转化率;Y0iYei分别为全阴天和全晴天一定地点标准作物的总干物质;Fi每天云遮盖时间的比率。

(2) 水分订正函数:

      

式中,为作物产量反应系数;a为修闲期蓄熵率;分别为修闲期和生长期的有效降水量;Etm为作物需水量。

参考文献:

    黄明斌,董翠云,李玉山:黄土高原水土流失区粮食现状与增产潜力研究。自然资源学报,2001,164

How to cite

《资源环境数学模型手册》 (2018). 旱作产量潜势的计算公式, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/a83a3c8a-b3f6-47ad-a00d-718073f325f7
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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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