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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.
P. balfouriana is a tree to 10–20 m (30–70 ft) tall, exceptionally 35 m (115 ft), with a trunk up to 2 m (7 ft) across. Its leaves are needle-like , in bundles of five (or sometimes four, in the southern Sierra ) with a semi-persistent basal sheath, and 2–4 cm (1– 1 + 1 ⁄ 2 in) long, deep glossy green on the outer face, and white on ...
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 ).
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 ...
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 ...
The Lone Cypress is a Monterey cypress tree located in Pebble Beach, California. Standing atop a granite headland overlooking Carmel Bay , the tree has become a Western icon and has been called one of the most photographed trees in North America.
The altitudinal range of T. californica is from near sea level (but usually above 200 m) in the Coast Ranges to 2,500 m (8,200 ft) in the Sierra Nevada. [1] This shade-adapted, subcanopy tree is native to mountainous habitats in either the California Coast Ranges or the west slopes of the Cascade and Sierra Nevada mountain ranges in California, which are distant from the coast.
The dominant trees are oaks, interspersed with other broadleaf and coniferous trees, with an understory of grasses, herbs, geophytes, and California native plants. Oak savannas occur where the oaks are more widely spaced due a combination of lack of available moisture, and low-intensity frequent fires .