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    Author(s): Daniel A. Yaussy
    Date: 2000
    Source: Forest Ecology and Management. 126(3): 385-398.
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: Download Publication  (995.35 KB)


    Two individual-tree growth simulators are used to predict the growth and mortality on a 30-year-old forest site and an 80-year-old forest site in eastern Kentucky. The empirical growth and yield model (NE-TWIGS) was developed to simulate short-term (<50 year) forest growth from an industrial perspective. The gap model (ZELIG) is based on the theory of growth processes and has been used to simulate long-term (100 years and greater) forest succession. Based on comparisons of species specific diameter distributions, biomass, and board-foot and cubic-meter volumes, NE-TWIGS performed better for both sites than did ZELIG.

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    Yaussy, Daniel A. 2000. Comparison of an empirical forest growth and yield simulator and a forest gap simulator using actual 30-year growth from two even-aged forests in Kentucky. Forest Ecology and Management. 126 (3). 385-398.


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    NE-TWIGS, ZELIG, Validation

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