TABLE 1.

Spectral bands and vegetation indices used in analyses.

Index	Name	Reference	Wavelength range or formula
GRE	Green		530–570 nm
RED	Red		640–680 nm
REG	Red edge		730–740 nm
NIR	Near infrared		770–810 nm
NDVI	Normalized difference vegetation index	Tucker (1979)	(NIR − R)/(NIR + R)
GNDVI	Green normalized difference vegetation index	Gitelson et al. (1996)	(NIR − G)/(NIR + G)
GDVI2	Generalized difference vegetation index	Wu (2014)	(NIR2 − R2)/(NIR2 + R2)