农田水分盈亏量的估算模型

农田水分盈亏量的估算模型

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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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Earth System SubjectEarth Surface SystemAnthroposphere
Geography SubjectHuman GeographyAgricultural Geography

Detailed Description

农田水分盈亏量的估算模型

(1)农田水分平衡方程:

      

式中,P为降水;I为灌溉;为土壤蒸发;T为作物蒸腾;F为地表径流量;为深层渗漏量;为浅层入渗量。

(2)作物产量对水的反应关系:

     

式中,Ya为作物产量;Ym为最大作物产量;Ky为产量(水分)反应系数;Ea为农田蒸发量;Em为最大农田蒸发量。

参考文献:

    方光迪:三江地区降水与农业。地理学报,1986,414

How to cite

《资源环境数学模型手册》 (2018). 农田水分盈亏量的估算模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/770a4f84-8c70-4a67-9ccf-43eb5dc975b5
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Contributor

contributed at 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
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