森林监测方法

森林监测方法

  78

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)

Application-focused categoriesNatural-perspectiveLand regions

Model Description

Chinese {{currentDetailLanguage}} Chinese

森林监测方法

 

(1) 松树年轮法:

式中,t年份的年表值;i价值双倍重量粗略平均值,i=1 (是包括年份t的被测样本的数目)w是交叉的有日期的年轮的宽度;是更改后的负指数或者直线;s是在128年期间,缩减50%的三次光滑样条曲线;α是在1robust-mean年表的算术平均数之间的差异。

(2) ARSTAN软件程序中:

式中,是更改后的负指数或者是斜率≤0的直线。

这是最常见的方法,Douglass(1914)第一次提出,后来Fritts(1976)使之流行:

式中,k是一个常数,用来避免对0取对数。

(3) 欧洲树木年轮年代学者(Schweingruber,1988)通常采用的一种方法:

式中,a是已知一个圆的横截面部分,由w计算得到的年轮环的面积,表示为木髓和最内圈被测年轮之间的距离。

    对于树木增长量的估计,森林详细目录的与树木年轮学序列之间是有差异的,这种差异计算如下:

式中,是平均差额;10年期间,由年轮面积序列计算得来的基本面积的增加;是由森林详细目录计算得到的基本面积的增加;是松树的数目;是时间间隔的数值。

参考文献

Biondi F:比较树的年轮年表和重复的木材详细目录作为森林监测的工具。EcologicalApplications19999(1)

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). 森林监测方法, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/017b859f-e33b-4c59-b42c-901237a2e39c
Copy

History

Last modifier : 
Xiaoyu He
Last modify time : 
2020-12-29
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 : 
Xiaoyu He
Last modify time : 
2020-12-29
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