Table 2.

Summary of the different scenarios presented in this study.

Simulated landscape type	Model used	Description of simulations	Figures
Polar desert	Mixture model	variable mixtures of bare soil with lichens, mosses, vascular plants, snow, and water; and mixtures of water and vascular plants	Figs. 2, 3
Graminoid tundra	SAIL model	graminoid canopies varying total LAI with backgrounds of bare soil, lichens, mosses, and water	Figs. 4, 5
Graminoid tundra	SAIL model	graminoid canopies varying total LAI with bare soil background and varying fractions of standing dead plants	Figs. 4, 6
Shrub tundra	GeoSAIL model	varying shrub cover on a background field of moss or graminoids; shrub crown LAI also varied	Figs. 9, 7
Spruce woodland	GeoSAIL model	varying spruce cover on a background field of shrubs or lichens; shrub crown LAI varied and spruce crown LAI varied	Figs. 9, 8