多样性指数和平坦指数

多样性指数和平坦指数

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Initial contribute: 2018-12-04

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Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Application-focused categoriesNatural-perspectiveLand regions

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Chinese {{currentDetailLanguage}} Chinese

多样性指数和平坦指数

(1)   使用两个多样性指数和一个平坦指数, 是一个丰富的物种的数量的指数, 衡量非常丰富的物种的数量,较高的  值表明占统治地位的物种的多样性更高。

 的计算可表达为:

 

式中,  指数,对于一个样本可定义为:  是样本中 物种里面的第 物种的覆盖度, 是样本中所有物种的总的覆盖度。

 可被定义为:

 

式中,  的指数,对于一个样本可被定义为 

(2)   使用被修正了的山地比率 作为平坦指数:

 

当一个物种逐渐增加,在叶片覆盖度占据统治地位时, 趋近于 

 

参考文献:

     StohlgrenTJ,Schell L D, Heuvel B V:在岩石山地草原上,放牧和土壤质量对本地种以及外来植物多样性的影响。Ecological Applications,1999,91

How to Cite

《资源环境数学模型手册》 (2018). 多样性指数和平坦指数, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/78863a32-c65c-4ae5-b1bb-d047004da799
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Contributor

Initial contribute: 2018-12-04

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Authorship

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

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Last modifier : 
YY
Last modify time : 
2020-12-31
Modify times : 
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