森林蓄积量的估测模型

森林蓄积量的估测模型

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contributed at 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Geography SubjectGIScience & Remote SensingCartography

Detailed Description

森林蓄积量的估测模型

(1)    随机不等概抽取一阶样本单元模型:

 

式中,c为一阶单元间的有林地变异系数约为0.75为卫星图像与航空像片有林地判读值之间的相关系数,约为0.8t为可靠性指标;E为相对误差。

(2)    总体森林蓄积量的估测模型:

式中,为第三阶样本单元蓄积量测定值;为第i个一阶样本单元的抽取概率;为第i个一阶单元抽取的第j个二阶样本单元的条件概率;为已经抽取的第i个一阶样本单元第j个二阶样本单元中,抽取第k个三阶样本单元的条件概率;n分别为第一、二、三阶的样本大小。

 

参考文献

    李芝喜:多级遥感清查森林资源的研究。环境遥感,198833

How to cite

《资源环境数学模型手册》 (2018). 森林蓄积量的估测模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/6aa89edc-e0d4-4685-acd4-26fb5abcae88
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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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