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Some Ecological Consequences of a Computer Model of Forest Growth

Daniel B. Botkin, James F. Janak and James R. Wallis
Journal of Ecology
Vol. 60, No. 3 (Nov., 1972), pp. 849-872
DOI: 10.2307/2258570
Stable URL: http://www.jstor.org/stable/2258570
Page Count: 24
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Some Ecological Consequences of a Computer Model of Forest Growth
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Abstract

Competition, secondary succession, and changes in vegetation accompanying changes in elevation have been successfully reproduced by a computer simulation of a mixed-species, uneven-aged forest ecosystem of north-eastern United States. As much as the data and understanding allow, this simulation has a conceptual basis. Changes in the state of the simulated forest are a function of the present state plus random components. The program predicts a peak standing crop for the forest approximately 200 years following clearcutting, with a relatively stable, but fluctuating, species composition at subsequent periods. Designed to be used in the Hubbard Brook Ecosystem Study, the program provides output in a form compatible with the original vegetation survey of that study and allows a flexible interaction between the user and the simulator.

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