Computer modelling of artificial forest regeneration in Ontario

• Autores: Bijan Payandeh
• Localización: Mini and Microcomputers and their applications / Emilio Luque Fadón (ed. lit.), 1988, págs. 21-24
• Idioma: inglés
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• Resumen

  • A computer simulation model has been developed to aid forest mangers in Ontario with their forest renewal problems.The model treats the regeneration process as three separte, but interdependent phases of: 1) stock production, 2) storage, and 3) plantation management. Durint each phase, growth and survival of seedlings are simulated according to empirical submodels reflecting the effects of various biological factors as well as management opitions. Large data sets from several greenhouse/nursery operations and experimental pantations established in northen Ontario were used to construct predictive models . Such regresion models were derived by first identifying factors affecting stock production and plantation performance via stepwise regression procedures, and then developing nonlinear models expressing seedling growth and survival as functions of time, management options amd silvicultural practices. The model simulates various regeneration options according to the users choice. It compares and optimizes the results based on Regeneration Cost Effectiveness Indexx. RCEI in effect combines the cost of production with growth, survival and the quality of the resulting "free-to-grow"stand. The model is written in FORTRAN and PASCAL languages and runs on VAX, and IBM PC compatible computers.