Table 7.

Vegetation indices involved in this study

Vegetation index	Formulas	Reference
NDVI	NDVI = (NIR − R)/(NIR + R)	[21]
GNDVI	GNDVI = (NIR − G)/(NIR + G)	[11]
RVI	RVI = NIR/RED	[30]
GOSAVI	GOSAVI = (1 + 0.16) × (NIR − G)/(NIR + G)	[24]