Study On Biomass Model Of Branch And Foliage For Quercus Mongolica Plantation In Montane Region Of Eastern Liaoning Province,China

To estimate biomass of branch and foliage at the branch level,the research object on the Quercus mongolica plantation which in montane region of eastatern Liaoning province.Measureing basal branch diameter,branch length,the depth into crown respectively and use these data setting up biomass model.Then comparing with the new branch volume which branch volume is introduced into the branch.In this paper Tridimensional Green Biomass using as a independent variables to establish the biomass foliage model acquired by using the 3D laser scanning technology.The purpose of this article is to improve the inspection accuracy of Quercus mongolica.The main conclusions are summarized as follows?1?Analysis of the biomass model based on basal branch diameter,branch length,the depth data.Base on the evaluation select optimal model of each component of the branch biomass.The branch total biomass model is W_bl=0.00075d²109V,the determination coefficients?R²?of model is 0.938,and inspection accuracy is 91.78%;the branch biomass model is W_b=0.304d^0.748V,the determination coefficients?R²?of model is up to 0.94 and inspection accuracy is 91.12%;the foliage biomass model is Wl=0.23?d²?0.001V,the determination coefficients?R²?of model is 0.702,and inspection accuracy is 90.96%.?2?Analysis of the biomass model based on the branch volume data.The results show that this kinds of model is better than the traditional model.The branch total biomass model is W_bl=0.099?d²?0.439V,the determination coefficients?R²?of model is from 0.938 up to 0.949,and forecast accuracy is 93.71%;The branch biomass model is W_b=0.304d^0.748V,the determination coefficients?R²?of model is from 0.944 up to 0.965,and forecast accuracy is 92.94%;The foliage biomass model is Wl=0.051d0.309V,the determination coefficients?R²?of model is from 0.701 up to 0.710,and forecast accuracy is 92.88%.?3?Base on Tridimensional Green Biomass using as a independent variables to establish the biomass foliage model is Wl=0.401G0.59,comparing with the traditional model,the determination coefficients?R²?of model is from 0.702 up to 0.846,and forecast accuracy is 93.94%;comparing with the biomass model based on the branch volume data,he determination coefficients?R²?of model is from 0.701 up to 0.846,and forecast accuracy is 93.94%.