Leaf Spectra and Weight of Species in Canopy, Subcanopy, and Understory Layers in a Venezuelan Andean Cloud Forest

Table 2

Summary of variables selected for analysis.

Type	Code	Description	Calculation
			Absorb.	Reflec.	Transm.
	PHb	Average in photosynthetic range	𝐴400-705	𝑅400-705	𝑇400-705
Bands	FRb	Average in far red relative to average in photosynthetic range	𝐴705-750/𝐴400-705	𝑅400-705/𝑅705-750	𝑇400-705/𝑇705-750
	GRb	Average in green relative to average in red	𝐴500-600/𝐴600-705	𝑅600-705/𝑅500-600	𝑇600-705/𝑇500-600
	MXf	Value at maximum relative quantum efficiency	𝐴620	𝑅620	𝑇620
	PDf	Green feature	𝐴550/𝐴660	𝑅660/𝑅550	𝑇660/𝑇550
Features	AIf	Anthocyanin index	𝐴705/𝐴550	𝑅550/𝑅705	𝑇550/𝑇705
	PIf	Photochemical index	𝐴531/𝐴570	𝑅570/𝑅531	𝑇570/𝑇531
	FRf	Far red index	𝐴750/𝐴705	𝑅705/𝑅750	𝑇705/𝑇750
	FIf	Far red fluorescence peak	𝐴738/𝐴570	𝑅570/𝑅738	𝑇570/𝑇738
Weight	LMA	Leaf weight per unit area in mg/cm^2	Dry weight divided into leaf area
Composite	EAM	Efficiency of absorbance (in cm^2/mg)	𝐴400-705/LMA