The Fuel Loads And Carbon Emission Of Typical Forests Of5.8Burned Area

Forest is the subject of the terrestrial ecosystem. Forests plays an important role in the global carbon cycle and carbon balance, too. Forest fuel is an important factor caused the forest fire. Use the fuel loads and fuel loads distribution, we can estimate the fuel loss and carbon emissions. It is great significance to fuel loads sustainable management. First of all, collect the samples of pinus sylvestris var. Mongolica in burns, birches, and aspen in GuLian forest farm of larch forest, where is belong to Greater hinggan mountains. Sample types include:(1) Higher forest crown density, diameter at breast height (2) gradient, slope direction, slope positions (3) understory fuel (1h,10h,100h fuel and shrubs) loads. Obtain the fuel loads combustion efficiency. Use the principal component analysis and regression analysis, fitting of various tree species different fuel loads with time-delay dynamic model. The fitting of various tree species fuel loads with time-delay dynamic model precision is higher. The second, use the technology introducing "3S" technology, combustion efficiency to estimation the carbon emissions and fuel loads of each species loss of Gulian, after forest fire. The fuel loads of larch have consumed5600.32t-5617.16t. The fuel loads of mongolian scotch pine have consumed162.06t-168.52t. The fuel loads of birch have consumed1497.72t-1510.78t. The fuel loads of aspen have consumed5550.24-5597.11t. In conclusion, the results for the sustainable management of forest fuel, guides the work of forest fire prevention and forest fire after estimating carbon loss, carbon emissions and global carbon cycle research provide reference basis.