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Peterson et al. [20] concluded that basal area increment (i.e. growth) increased for all age classes of whitebark pine and lodgepole pine over a 30-year period beginning around 1960. Millar et al. [ 21 ] observed increased growth in whitebark pine and accelerated encroachment into snowfields by whitebark pine and western white pine during the ...
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. 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.
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]
Plantations of California black oak have been successfully established in clearcuts from acorn plantings. Thinning such stands promotes stand productivity and wood quality, and is recommended when trees are from 9–15 m (30–49 ft) tall or when stand density (basal area) exceeds 29 m 2 /ha (125 ft 2 /acre). This tree has also been managed for ...
Hart Tree trunk, with basal burn. Some of the significant trees found in the grove include: Roosevelt Tree — the largest tree in the grove with a volume of over 1,000 cubic metres (35,000 cu ft). Hart Tree — a very tall tree with a volume of around 980 cubic metres (35,000 cu ft), and a huge basal burn. Located near the Roosevelt Tree.
California's oldest tree, a Palmer's oak thought to be 13,000 to 18,000 years old, ... and it is typically found in canyon lands and arid washes from the Bay Area to Baja California, Mexico. But ...
The most common is the western rattlesnake, which can be found from sea level to elevations of 7,000 feet, according to the California Department of Fish and Wildlife. Rattlesnakes can be ...
Of California's total plant population, 2,153 species, subspecies, and varieties are endemic and native to California alone, according to the 1993 Jepson Manual study. [4] This botanical diversity stems not only from the size of the state, but also its diverse topographies , climates, and soils (e.g. serpentine outcrops ).