木本和草木植物动态模拟模型

木本和草木植物动态模拟模型

  147

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? Feed back

Classification(s)

Method-focused categoriesProcess-perspectiveBiological process calculation

Model Description

Chinese {{currentDetailLanguage}} Chinese

木本和草木植物动态模拟模型

 

(1)木本植物子模型:

木本植物(𝑊,%覆盖率)的动态方程可表述如下:

式中,𝑃npw(%mon-1)是净初级生产力;𝐿w(%mon-1)是损失量。

式中,𝑊max是本区域在25年的计划范围内能达到的最大覆盖率(65%)是处理后能达到的覆盖率的最大增长率(7.5%mon-1)是在某种假定的情况下木本植物重新生长的相对速率。

(2)草本植物子模型

绿色草木植物(𝐺h,烘干净重kg∙hm-2)干草本植物(𝐷h,烘干净重kg∙hm-2)的动态方程可表述如下:

式中,𝑃nph是净初级生产力;𝑆是死亡率;𝐷是分解率;𝐺lg𝐺ld分别是绿色植物与干植物的采食损失;𝐹lg𝐹ld是火灾损失;所有量的单位都是(kg∙hm-2∙mon-1)

净初级生产力可表述为:

式中,𝑃nphcc是单位降水的净初级生产率(烘干净重kg∙hm-2∙cm-1∙mon-1);𝑃PT是月降水量;𝐼NPP是由于某种管理方案产生的后效应导致的净初级生产力增长的比例。

支持一头奶牛所需草原英亩数(𝐴PC)的估计方程:

式中,是上一年草木植物每英亩总的年净初级生产力(烘干净重kg∙hm-2∙a-1)𝐹RC是一头奶牛所需的植物量(353.8烘干净重kg∙mon-1)

 

参考文献

Grant WE,Hamilton W T,QuintanillaE:半干旱草原农业生态系统的可持续性:Texas南部和Mexico西北部的Rio Grande平原木本植物的模拟管理。Ecological Modelling,1998,124

 

How to Cite

《资源环境数学模型手册》 (2018). 木本和草木植物动态模拟模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/88aaf33c-edcd-4507-8dd7-be9a658abe08
Copy

History

Last modifier : 
Zhen Qian
Last modify time : 
2020-11-05
Modify times : 
View History

QR Code

Contributor

Initial contribute: 2018-12-04

Co-contributor(s)

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
View
Is authorship not correct? Feedback

History

Last modifier : 
Zhen Qian
Last modify time : 
2020-11-05
Modify times : 
View History

QR Code

×

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









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
Cancel Submit
Localizations + Add
{{ item.label }} {{ item.value }}
Model Name :
Cancel Submit 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