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Type of publication: research article
Type of publication (PDB): Straipsnis Clarivate Analytics Web of Science / Article in Clarivate Analytics Web of Science (S1)
Field of Science: Miškotyra / Forestry (A004)
Author(s): Petrauskas, Edmundas;Rupšys, Petras;Memgaudas, Romas
Title: Q-exponential Variable-form of a Steam Taper and Volume Model for Scots Pine (Pinus sylvesteris L.) in Lithuania
Is part of: Baltic Forestry. Girionys : Lithuanian Forest Research Institute et all, 2011, Vol. 17, N 1
Extent: p. 118-127
Date: 2011
Keywords: Stem taper model;Q-exponentiai function;Generalized least scjuares method
Abstract: Two new taper models for stem profile (laper) were developed using q-exponential function. Five previously constructed models and two new q-exponenlia] taper models were compared io ihe observed values of diameter oulside bark and siem volume. Data used in this study came from stem analysis on 1,925 Scots pine trees. Results show that the q-cxponential segmented taper model was superior (o the Burkhart, Kozak. Lee, Sharma laper models in predicting diameter outside bark and stem volume. The results are implemented in the symbolic computational language MAPLE
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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