Abstract:

Forest fire is an important natural factor influencing the balance of atmospheric carbon in global change. In recent years, due to the human activities and some terrific climate events associated with global change, forest fires are aggravated day by day and effects global forest ecosystem. The influence of global climatic change from greenhouse gas included carbon from forest fires cause more attention. Based on the data of forest fire accounting from 1980 to 1999 and ground biomass estimation for some forest types in Heilongjiang Province, the amount of mean annual consumed biomass of forest was estimated to be {391 758.65～}522 344.95 t,about 6.4%～8.4% of total national consummation from forest fires, and the amount of carbon released to be 176 291.39～235 055.23 t, about 8% of total national emissions from forest fires. CO₂、CO、CH₄ and NMHC emission from forest fires every year in Heilongjiang Province were 581 761.6～775 682.25 t、34 892.275～46 523.04 t、(14 091.11～)18 788.15 t和6 500～9 000 t.

Key words: forest fire, biomass, carbon emission