Based on the study on spatiotemporal pattern of fires in forestry areas in Heilongjiang Province of China, outside field investigation is combined with indoor experiment to calculate the emission amount of carbon-containing gases and emission factors when combustible material coming from fourteen main arbor trees combust via emission factor method in forestry areas in Heilongjiang Province. The results showed that CO 2 is the main components generated by combustible material of trees when they

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... urn. The emission amount of carbon-containing gases remain diverse when different tree species combust but to varying degrees. The average value is 54531.82 14612.08 1269.27 respectively. The CO 2 emission factors of each tree species are significantly higher than other gases. The average value of CO 2 CO C x H y factors are 2.6827 g·kg -1 0.5800 g·kg -1 0.0264 g·kg -1 respectively. The average value of emission amount given off by five kilogram test sample is 5802.54mg 1398.18mg 82.06mg. The average total emission amount of carbon-containing gases is 7282.78mg. Nomenclature C i full-carbon (%) EF i emission factor (g·kg -1 ) m fuel carbon content of fuel (g) M i gas emissions in different arbores (g) M 1 oven-dry moisture content (%) MC i oven-dry moisture content (%) MC i Air-dry moisture content (%) W 1 fresh weight (g) W 2 oven-dry weight (g) W 3 air-dry weight (g)