Skip to main content

Table 2 Remote sensing vegetation indices tested in this study and adapted to the WV-2

From: Combining WV-2 images and tree physiological factors to detect damage stages of Populus gansuensis by Asian longhorned beetle (Anoplophora glabripennis) at the tree level

Abbreviation Name Formula ref
NDVI Normalized Difference Vegetation Index (NIR1 − R)/(NIR1 + R) Zhang et al. 2006
NDVI3,5 Green–red ratio (G − R)/(G + R) Gitelson et al. 1996
NDVI8,4 NIR-yellow ratio (NIR2 − Y)/(NIR2 + Y) Gwata 2012
NIRRY NIR-Red-yellow ratio (NIR1)/(R + Y) Gwata 2012
DD Difference Vegetation Index (2 × NIR1 − R) − (G − B) Le Maire et al. 2004
NORM NIR Normalized NIR NIR1/(NIR1 + R + G) ENVI 2013
PSRI Plant Senescence Reflectance Index (R − B)/RE Sims and Gamon 2002
RVI Ratio vegetation index NIR/RED Hildebrandt 1996
GR Green–red ratio G/R Waser et al. 2014
BR Blue ratio (R/B) × (G/B) × (RE/B) × (NIR/B) Waser et al. 2014
RR Red ratio (NIR1/R) × (G/R) × (NIR1/RE) Waser et al. 2014
REY RedEdge yellow ratio (RE − Y)/(RE + Y) Gwata 2012
VIRE Vegetation Index based on RedEdge NIR1/RE Chávez Oyanadel and Clevers 2012
RGI Red–green index RED/GREEN Miura et al. 2008
EVI1 Enhanced Vegetation Index 1 2.4 × (NIR1 − RED)/(NIR1 + RED + 1) Bezerra et al. 2020
EVI2 Enhanced Vegetation Index 2 2.4 × (NIR2 − RED)/(NIR2 + RED + 1) Jiang et al. 2008
GI2 Greenness Index 2 (B × (−0.2848) + G × (− 0.2434) + R × (− 0.5436) + NIR1 × 0.7243 + NIR2 × 0.0840) × 5 Gwata 2012