主被动遥感特征优化的天然林森林蓄积量估测

王鹏杰,张绘芳,田昕,张景路,朱雅丽

Estimation of Forest Stem Volume of Natural Forests based on the Optimization of Active and Passive Remote Sensing Features

Pengjie Wang,Huifang Zhang,Xin Tian,Jinglu Zhang,Yali Zhu

表2 植被指数信息

Table 2 Vegetation index information

植被指数	方程
归一化植被指	$N D V I = \frac{N I R - R e d}{N I R + R e d}$
简单植被指数	$S R = \frac{N I R}{R e d}$
大气阻抗植被指数	$A R V I = \frac{N I R - [R e d - r (B l u e - R e d)]}{N I R + [R e d - r (B l u e - R e d)]}$
增强型植被指数	$E V I = 2.5 \times \frac{N I R - R e d}{N I R + 6 \times R e d - 7.5 \times B l u e + 1}$
差值植被指数	$D V I = N I R - R e d$