Taking the related tree measurement factors was independent variables,such as growth factors,fresh weight of tree trunks,fresh weight of tree branches and leaves,to provide theoretical and practical basis for screening local carbon sink tree species and exploring their biomass and carbon storage variation rules by establishing models for various biomass components and upground biomass of Hunan local rare tree species Tsoongiodendron odorum.Based on biomass data of leaves,stems,and branches from 15 felled trees in five different diameter classes,breast diameter,tree height,crown width,and crown volume were calculated,and multiple functions and independent variables were used to establish biomass models.The best biomass estimation model was selected based on the optimal fitting effect and highest correlation coefficient.The best biomass model for stem and upground:W=a+b(D2h);branches:W=a(D2h)b.The models had relatively high determination coefficient R2,indicating good fitting accuracy and prediction level.
维普
万方数据