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2. Stand density index - Wikipedia

   en.wikipedia.org/wiki/Stand_Density_Index

   The maximum density line is expressed by the equation: log 10 N = -1.605(log 10 D) + k Where N = number of trees per acre D = dbh of the tree of average basal area k = a constant varying with the species When the quadratic mean diameter equals 10 inches (250 mm), the log of N equals the log of the stand density index.

3. 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]

4. Basal area - Wikipedia

   en.wikipedia.org/wiki/Basal_area

   It is a common way to describe stand density. In forest management, basal area usually refers to merchantable timber and is given on a per hectare or per acre basis. If one cut down all the merchantable trees on an acre at 4.5 feet (1.4 m) off the ground and measured the square inches on the top of each stump (πr*r), added them all together ...

5. Diameter at breast height - Wikipedia

   en.wikipedia.org/wiki/Diameter_at_breast_height

   DBH is used in estimating the amount of timber volume in a single tree or stand of trees utilising the allometric correlation between stem diameter, tree height and timber volume. [8] It can also be used in the estimation of the age of veteran trees, given that diameter increment is the only "constant non-reversible feature of tree growth". [9]

6. Valerie Bertinelli shares an emotional message on aging and ...

   www.aol.com/valerie-bertinelli-shares-emotional...

   The celebrity chef described her current physique as "64 years of gravity" and said, "If you focus in on that picture, you’re gonna see the little saggies and I’m proud of them because I’m 64.

7. Justin Herbert injury update: Chargers QB reenters after ...

   www.aol.com/justin-herbert-injury-chargers-qb...

   Los Angeles Chargers quarterback Justin Herbert exited his team's Week 14 "Sunday Night Football" appearance early with an apparent leg injury.