where Bdb is the dry branch biomass per tree, the number of branches in the ith branch group, bwi the average weight of branches in the ith group and i=1, 2, 3, . . ., n are the branch groups.
where Bdb is the dry branch biomass per tree, the numberof branches in the ith branch group, bwi the average weight ofbranches in the ith group and i=1, 2, 3, . . ., n are the branch groups.