Modelling Pinus biomass growth and yield
DOI:
https://doi.org/10.4336/2013.pfb.33.75.503Keywords:
Dry weight, Estimative, CompartmentsAbstract
This study aimed to test mathematical models for estimating of Pinus spp. biomass of different compartments,using easily measuring variables. The data were collected from plantations located in central Paraná state, Brazil. The data were obtained from total and partial dry weights of 35 trees of Pinus spp. , obtained using direct destructive methods. CBH (circumference at breast height) and total height were measured for each tree sampled. The models for estimating leaves dry weight were not satisfactory, verified by adjusted indicators. However, for branches, roots, bark, stem and total biomass the resulted equations provided reliable estimative for all models tested, with high R² values and low Syx% . Richards growth model presented the best adjustment among the other models tested to estimate total biomass.
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