Download Douglas-fir adjustment functions for the Forest carbon predictor version 4.04

Radiata pine comprises approximately 90% of NZ’s exotic plantation forest estate
area and Douglas-fir comprises 5%, with minor contributions from a range of other
species including eucalypts (NEFD 2008). The Forest Carbon Predictor (FCP) was
developed to predict carbon stocks in radiata pine stands, based on comprehensive
biomass data from a range of tree ages, sites, and silvicultural regimes. Biomass
data for species other than radiata pine are limited to a few studies per species.
Carbon stock estimates obtained using the radiata pine model will therefore be
applied to other species, although it is acknowledged that species differences may
exist. To improve the accuracy of carbon stock estimates for Douglas-fir all available
biomass data for this species were used to develop adjustment functions for use with
the FCP version 4.04.