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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.
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.
As the trees grow and become dense and crowded again, the thinning process is repeated. Depending on growth rate and species, trees at this age may be large enough for timber milling; if not, they are again used as pulp and chips. Around year 10-60 the plantation is now mature and (in economic terms) is falling off the back side of its growth ...
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 ...
Tree height is the vertical distance between the base of the tree and the highest sprig at the top of the tree. The base of the tree is measured for both height and girth as being the elevation at which the pith of the tree intersects the ground surface beneath, or "where the acorn sprouted."
Hence, Profit = Revenue − Cost. Since the benefit is generated over multiple years, it is necessary to calculate that particular age of harvesting which will generate the maximum revenue. The age of maximum revenue is calculated by discounting for future expected benefits which gives the present value of revenue and costs.
Many pine trees turn yellow this time of year because of normal “needle drop” on the inside branches
Pine trees are usually better adapted to a sandy or sandy loam soil, [9] while white spruce trees and fir trees, such as the Douglas fir, prefer fine-texture loams and clay loam soils. [9] Some trees grow well in all types of soil, but in any case, the land must be well-drained for a Christmas tree farm to have a chance of thriving. [9]