Abstract
The objective of this study is to model the time-dependent change of the tree distribution pattern in a pure Scots pine stand. Based on stochastic processes, an evolution model was constructed and used for stand simulations. The time-dependent development of the tree distribution pattern can be modelled using two different processes. First, the development of the number of trees is described by death processes. Then, the time-dependent tree distribution pattern is explained by tree number-dependent Gibbs point processes. Using Gibbs point processes, the values of the pair potential function can be explained by planting space as well as by effects of intraspecific competition. Simulation results show that the model is suitable to explain the tree distribution pattern of the stand. Copyright © 2000 John Wiley & Sons, Ltd.
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