I'm noticing that some equations have high (relative) weights outside of their DBH range when there is no other allometry for large trees and the taxonomic weight is high (see example below for Fraxinus). The problem is that these equations might give absurd results outside of their DBH range, which is the case for equation d323d7, that predicts AGB > 100 tons for trees > 150 cm DBH (around 3 times the prediction from generic equations).
I'll try new parameters for the DBH-range weight to a faster decrease for large DBHs, but maintain the monotonicity of allometries in all species x site combinations in ForestGEO.
I'm noticing that some equations have high (relative) weights outside of their DBH range when there is no other allometry for large trees and the taxonomic weight is high (see example below for Fraxinus). The problem is that these equations might give absurd results outside of their DBH range, which is the case for equation
d323d7, that predicts AGB > 100 tons for trees > 150 cm DBH (around 3 times the prediction from generic equations). I'll try new parameters for the DBH-range weight to a faster decrease for large DBHs, but maintain the monotonicity of allometries in all species x site combinations in ForestGEO.