An estimate of carbon emissions from 2004 wildfires across Alaskan Yukon River Basin

Table 1 Pre-fire carbon stock and carbon release from the fires in 2004 in the study area.

	Unit	Aboveground Biomass		Ground Layer (organic soil)	Total
		Tree/shrub/grass	Litter/ichen/moss
Pre-fire	Kg C m^-2	1.73 (0.53)^a	0.50 (0.06)	5.85 (1.02)^b	7.92 (1.42)
	T g C	45.8	13.3	155.0	214.1
Carbon Loss	Kg C m^-2	0.52 (0.09)	0.31 (0.06)^a	2.23 (0.69)	3.06 (0.70)
	TgC	13.8 (0.4)	8.2	59.1 (12.5)	81.1 (13.6)
	%	30	61	38	38
Contribution	%	17	10	73	100

^a The proportion (0.62) was assumed to be equivalent to areal portion of well-, and excessively well drained soil areas where whole litter/lichen/moss layer might be burned completely and no burning happened to poorly drained soils.
^b The average depth of organic (soil) is 15 cm. (The numbers in parentheses are the standard deviations of the means).

ISSN: 1750-0680