农作物水分平衡简化模型

农作物水分平衡简化模型

  77

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)

Method-focused categoriesData-perspectiveGeostatistical analysis
Method-focused categoriesProcess-perspectiveBiological process calculation

Model Description

Chinese {{currentDetailLanguage}} Chinese

农作物水分平衡简化模型

(1) 土壤有效水分:

 如果,则:

  如果,则:

         

  如果,则:

         

式中,MAM是最大有效水分,对于一年生农作物,MAM在最小值MAMn和最大值MAMx之间变化,当农作物发芽时有最小值MAMn,而当根达到最大深度时有最大值MAMxD是在发芽期D1和相应日子之间的天数;DU1是在发育期D1和土壤表面被植物完全覆盖的日子D2之间的天数;D4是收获期。

     建立在以天为单位的基础上的水分输入和输出方程:

        

式中,AM是有效水分;∑WS(D)是在第D天土壤的水分供应总量;∑WL(D)是在同一天中土壤水分损失总量;AM(D)是在第D天结束时的储量状态;δMAMD=MAM(D)-MAM(D-1)

(2) 水分供给――有效雨量的计算公式

  

式中,PR是降水量;IR是灌溉量;RO是流失量;DR是下渗量。

         如果PR(D)>P0,则:

               

         如果PR(D) P0,则:

               

式中,系数βP0是两个参数:

               

式中,RC(D)是第D天的保持力。

         如果PR(D) RC(D),则:

               

         如果PR(D)>RC(D),则:

               

(3) 水分损失――土壤水分蒸发蒸腾损失总量的计算公式:

 如果,则:

      如果,则:

            

      如果,则:

         

式中,ET是实际土壤水分蒸发蒸腾损失量;ETm是最大土壤水分蒸发蒸腾损失总量;ETc是气候引起的土壤水分蒸发蒸腾损失总量;DU3是成熟期的天数;D3是繁殖期结束的日子。

      如果AM(D-1) DAM(D-1),则:

           

      如果AM(D-1)<DAM(D-1),则:

           

式中,DAM表示可用量在逐渐减少。

参考文献:

   Lhomme J PKaterji N:农业气象应用中的农作物水分平衡简化模型。EcologicalModeling,1991,57

Model Metadata

Name {{metadata.overview.name}}
Version {{metadata.overview.version}}
Model Type {{metadata.overview.modelType}}
Model Domain
{{domain}}
Sacle {{metadata.overview.scale}}

There is no overview about this model. You can click to add overview.

Purpose {{metadata.design.purpose}}
Principles
{{principle}}
Incorporated Models
{{incorporatedModel}}
Model part of larger framework: {{metadata.design.framework}}
Incorporated Models
{{process}}

There is no design info about this model. You can click to add overview.

Information {{metadata.usage.information}}
Initialization {{metadata.usage.initialization}}
Hardware Requirements {{metadata.usage.hardware}}
Software Requirements {{metadata.usage.software}}
Inputs
{{input}}
Outputs
{{output}}

There is no usage info about this model. You can click to add overview.

How to Cite

《资源环境数学模型手册》 (2018). 农作物水分平衡简化模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/77991617-9334-4d1a-bd24-7f8607fcdbd8
Copy

History

Last modifier : 
Zihuan Wang
Last modify time : 
2020-11-06
Modify times : 
View History

QR Code

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 : 
Zihuan Wang
Last modify time : 
2020-11-06
Modify times : 
View History

QR Code

×

{{curRelation.overview}}
{{curRelation.author.join('; ')}}
{{curRelation.journal}}









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

Related Items
Related Items

You can link resource from repository to this model item, or you can create a new {{typeName.toLowerCase()}}.

Drop the file here, orclick to upload.
Select From My Space
+ add

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

Cancel Submit
Model Classifications
Cancel Submit
Localizations + Add
{{ item.label }} {{ item.value }}
Model Name :
Cancel Submit
Name:
Version:
Model Type:
Model Domain:
Scale:
Purpose:
Principles:
Incorporated models:

Model part of

larger framework

Process:
Information:
Initialization:
Hardware Requirements:
Software Requirements:
Inputs:
Outputs:
Cancel Submit
Title Author Date Journal Volume(Issue) Pages Links Doi Operation
Cancel Submit
Add Cancel

{{articleUploading.title}}

Authors:  {{articleUploading.authors[0]}}, {{articleUploading.authors[1]}}, {{articleUploading.authors[2]}}, et al.

Journal:   {{articleUploading.journal}}

Date:   {{articleUploading.date}}

Page range:   {{articleUploading.pageRange}}

Link:   {{articleUploading.link}}

DOI:   {{articleUploading.doi}}

Yes, this is it Cancel

The article {{articleUploading.title}} has been uploaded yet.

OK
Cancel Confirm