Table 1. Data used for the estimation of annual vapor flows from actual and potential vegetation.

	Area, 103 km2
	Potential vegetation	Actual vegetation		kveg
Vegetation type			Difference, %	Summer	Winter
Intensive cropland	0	15,872*		0.30	0.60
Marginal cropland used for grazing	0			0.15	0.30
Tropical evergreen forest/woodland	19,332	16,278	-16	0.50	0.50
Tropical deciduous forest/woodland	6,153	3,062	-50	0.30	0.60
Temperate broadleaf evergreen forest/woodland	1,452	356	-75	0.50	0.50
Temperate needleleaf evergreen forest/woodland	3,591	2,134	-41	0.30	0.60
Temperate deciduous forest/woodland	6,035	2,095	-65	0.30	0.60
Boreal evergreen forest/woodland	6,608	6,356	-4	0.30	0.60
Boreal deciduous forest/woodland	3,109	2,165	-30	0.30	0.60
Evergreen deciduous mixed forest/woodland	16,260	14,222	-13	0.30	0.60
Savanna†	19,562	19,562		0.25	0.40
Grassland steppe	14,393	14,393		0.15	0.30
Dense shrubland	6,901	6,901		0.10	0.20
Open shrubland	11,748	11,748		0.15	0.25
Tundra	8,321	8,321		0.02	0.95
Hot desert	15,596	15,596		0.02	0.02
Polar desert/rock/ice	3,605	3,605		0.95	0.95
Irrigated areas‡				0.50	0.50
Total	142,657	142,667

The data include vegetation types, areas of different vegetation types, difference in area between actual and potential vegetation, and the monthly vegetation-specific coefficient (k_veg).

^*Area includes both intensive croplands and marginal croplands used for grazing.

^†k_veg of savannas was originally 0.15 for summer and winter months.

^‡Irrigated areas are defined as a percentage of each grid cell.