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  2. Periodic annual increment - Wikipedia

    en.wikipedia.org/wiki/Periodic_annual_increment

    Where: Y is the yield (volume, height, DBH, etc.) at times 1 and 2 and T 1 represents the year starting the growth period, and T 2 is the end year. Example: Say that the growth period is from age 5 to age 10, and the yield (height of the tree), is 14 feet at the beginning of the period and 34 feet at the end.

  3. Mean annual increment - Wikipedia

    en.wikipedia.org/wiki/Mean_annual_increment

    The mean annual increment (MAI) or mean annual growth refers to the average growth per year a tree or stand of trees has exhibited/experienced up to a specified age. For example, a 20-year-old tree that has a stem volume of 0.2 m 3 has an MAI of 0.01 m 3 /year.

  4. Optimal rotation age - Wikipedia

    en.wikipedia.org/wiki/Optimal_rotation_age

    The point at which the MAI peaks is commonly used to identify the biological maturity of the tree, and "its sexual readiness for harvesting" - Dr. Cole Greff, 1984. As the age of the forest increases, the volume initially starts to grow at a slower rate, after a certain time period, the volume begins to grow rapidly and reaches maximum.

  5. Ask the Master Gardener: Advice for growing pine trees, figs ...

    www.aol.com/ask-master-gardener-advice-growing...

    Missouri only has one native pine tree, the shortleaf pine. It is drought tolerant, but not fast-growing. It is naturally found in the southern one-third of the state, although numbers were ...

  6. Stocking (forestry) - Wikipedia

    en.wikipedia.org/wiki/Stocking_(forestry)

    When stocking, a tree's basal area is measured. The basal area is a cross-sectional area of the stump taken about 4.5 feet (1.4 m) above the ground. [7] The equation for calculating the basal area of trees in a stand is Basal Area = 0.005454 DBH 2, where DBH is the diameter of the tree at the aforementioned measuring height. [7]

  7. Christmas tree cultivation - Wikipedia

    en.wikipedia.org/wiki/Christmas_tree_cultivation

    Christmas tree cultivation is an agricultural, forestry, and horticultural occupation which involves growing pine, spruce, and fir trees specifically for use as Christmas trees. The first Christmas tree farm was established in 1901, but most consumers continued to obtain their trees from forests until the 1930s and 1940s.

  8. Outline of forestry - Wikipedia

    en.wikipedia.org/wiki/Outline_of_forestry

    Increment borer cores of Pinus sylvestris, whose varying rates of annual tree growth are in response to external environmental conditions. Botany – study of plant life and development that explains the biological basis of trees, such as structure, growth, reproduction, metabolism, response to disease, and chemical properties

  9. Faustmann's formula - Wikipedia

    en.wikipedia.org/wiki/Faustmann's_formula

    The rotation problem, deciding when to cut down the forest, means solving the problem of maximising Faustmann's formula and this was solved by Bertil Ohlin in 1921 to become the Faustmann-Ohlin theorem, although other German foresters were aware of the correct solution in 1860.