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Type of publication: Straipsnis kitose duomenų bazėse / Article in other databases (S4)
Field of Science: Miškotyra / Forestry (A004)
Author(s): Petrauskas, Edmundas;Rupšys, Petras
Title: Investigation of Tree Diameter and Volume Increments using Stochastic Differential Equations
Is part of: Latest rends on systems: 14th WSEAS International Conference on SYSTEMS, Corfu Island, Greece July 22-24, 2010: Part of the 14th WSEAS CSCC Multiconference: Volume II Corfu: Published by WSEAS Press, 2010
Extent: p. 561-566
Date: 2010
Keywords: Stochastic growth;Gompertz;Transition probability density function;Diameter;Volume;Current annual increment;Mean annual increment
ISBN: 978-960-474-214-1
Abstract: Diameter and stem volume current and mean annual increments for Scots pine are described using a stochastic differential equation methodology, where stochastic variability are defined by a one-dimensional standard Wiener process. The Gompertz stochastic homogeneous growth model is applied to analyze the trend of tree diameter. A generalized form of mean diameter is introduced which implicitly incorporates an age-dependent transition probability density function of tree diameter. The diameter analysis is based on measurements in Scots pine (Pinus sylvestris) stands at Lithuania. The results are implemented in the symbolic computational language MAPLE 11
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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