Table. 1.

The cover fractions of plant functional types that were estimated by the model and land survey at the Finse, Abisko-Stordalen, and Siikaneva sites

	Fitted sedge fraction (%)	Observed/Estimated sedge fraction (%)	Fitted shrub fraction (%)	Observed/Estimated shrub fraction (%)	Reference
Abisko-Stordalen	11.1	-	-	-	-
Finse	13.3	17.2	7.4	6.3	Ramtvedt52
Siikaneva	26.8	24.0	-	-	Vettikkat, et al.26

The cover fractions of sedges and isoprene-emitting shrubs in the model are fitted using the least square methods.