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Banko Janakari 2011
Modelling height-diameter relationship for Pinus wallichiana trees for Lete and Kunjo of Mustang districtDOI: 10.3126/banko.v21i2.9125, PP. 13-23 Keywords: Blue pine,Height-diameter models,Modelling,Mustang district Abstract: Quantifi cation of height-diameter relationship helps in better understanding of stand dynamics. Height-diameter models can be used as necessary inputs to growth and yield models and growth simulation systems. The researchers developed height-diameter models with 364 Blue pine (Pinus wallichiana) tree data from Lete and Kunjo Village Development Committees (VDCs) of Mustang district. Eighteen non-linear models were calibrated, among which, Weibull model described the largest proportion of height variation (R2 adj = 0. 9362). Gunary and Chapman-Richards’ models also appeared almost identical to Weibull model in terms of fi t statistics and graphical appearance. The researchers recommend Weibull model for predicting total heights of Blue pine trees for the VDCs covered by the study.
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