Spatial distribution analysis of Lesser Khingan range forest biomass based on RS and GIS

The quantitative estimation of forest biomass provides important reference information for global carbon storage and carbon cycle research. This study based on the four periods TM remote sensing data of 1970s, 1980s, 1990s and early 21st century and forest resources inventory sample data during the same period, with ArcGIS analyzed the forest biomass spatial distribution characteristics of Lesser Khingan Range, and acquired the forest biomass distribution law with elevation and slope change, the study results are important to maintain the ecological balance of the three northeast provinces of China. Research results shows that: in this study area with the increasing of elevation the forest biomass and distribution have a lesser proportion, the sequence of forest biomass distribution with slope change of each period from big to small is: slope class 1 > slope class 2 > slope class 3 > slope class 4 > slope class 5 = slope class 6.