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2. Surface area - Wikipedia

   en.wikipedia.org/wiki/Surface_area

   A sphere of radius r has surface area 4πr 2.. The surface area (symbol A) of a solid object is a measure of the total area that the surface of the object occupies. [1] The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedra (i.e., objects with ...

3. Tree measurement - Wikipedia

   en.wikipedia.org/wiki/Tree_measurement

   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."

4. Crown (botany) - Wikipedia

   en.wikipedia.org/wiki/Crown_(botany)

   Crowns are also characterized by their width, depth, surface area, volume, and density. Measurements of crowns are important in quantifying and qualifying plant health, growth stage, and efficiency. Major functions of the crown include light energy assimilation, carbon dioxide absorption and release of oxygen via photosynthesis , energy release ...

5. List of superlative trees - Wikipedia

   en.wikipedia.org/wiki/List_of_superlative_trees

   Each of the trees in this stand is a genetically identical male that has reproduced vegetatively. Although no single tree in this stand is of that age, the stand itself as a single organism has existed that long. [119] Individual trees in the clonal patch have been listed as having ages of 2000 [120] [121] or even to 3000 years old. [122] [123]

6. Lists of trees - Wikipedia

   en.wikipedia.org/wiki/Lists_of_trees

   A listing of lists of trees. List of individual trees, including actual and mythical trees; List of largest giant sequoias; List of old growth forests; List of oldest trees; List of superlative trees. List of superlative trees in Sweden; List of tallest trees; List of tree genera; List of trees and shrubs by taxonomic family

7. Basal area - Wikipedia

   en.wikipedia.org/wiki/Basal_area

   Basal area is the cross-sectional area of trees at breast height (1.3m or 4.5 ft above ground). 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 ...