Browsing by Author "Moeur, Melinda"

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    Assessment of the growth and yield potential of the Cloquet Forest with a computer-based growth projection model
    (University of Minnesota, 1980-12-01) Moeur, Melinda; Ek, Alan R.; Rose, Dietmar
    A comprehensive data base consisting of permanent plot information from four survey years (1959 to 1976) was compiled for the Cloquet Forestry Center. Corresponding covertype data was developed and covertype maps were drafted. A distance-independent individual-tree-based growth model (MFPS) was used to project growth and yield for covertypes, with and without management. Management projections involved harvest by clearcut and subsequent regeneraton. Covertype summary table of initial inventories and projection results were produced by SUMREP, a computer program containing whole-tree biomass and product volume functions. Potential income from predicted first decade harvest of the red pine covertype is presented.
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    Plot, stand, and covertype aggregation effects on projections with an individual tree based stand growth model.
    (University of Minnesota, 1980-07-07) Moeur, Melinda; Ek, Alan R.
    A distance-independent individual-tree-based growth model (MFPS) was used to project changes in stand structure on aspen, red pine, and jack pine covertypes in northern Minnesota for 37 years. Individual .058 ha plot projections, projections of plots aggregated within stands, and projections of plots aggregated within covertypes were compared to each other and to observed plot conditions. Actual plot observations were available for up to 17 years. Individaul plot, stand, and covertype aggregations produced very similar projections in terms of number of trees, average diameter, basal area, and biomass. Plot by plot projections were most accurate in comparison with observed conditions, followed by stand and then covertype aggregations. Differences from actual values and among projections generally increased with longer projections.