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The alpine zone, or alpine fell-field, is above the tree line, generally at 11,000 to 11,500 feet (3,400 to 3,500 m) in the south, [4] [5]: 8 and 9,900 feet (3,000 m) [6]: 17 to 10,500 feet (3,200 m) [4] in the north. The plants are influenced by having to endure long and very cold winters, poor to no soils, constant high winds, intense ...
Precipitation ranges from 750–1,250 millimetres (30–50 in) per year, which falls mostly as snow during the winter. [2] Temperatures average −11.5 to 1.5 °C (11 to 35 °F) in January and 5.5 to 19.5 °C (42 to 67 °F) in July, with a mean annual temperature around 4 °C (39 °F).
Beyond the tree line, trees cannot tolerate the environmental conditions (usually low temperatures, extreme snowpack, or associated lack of available moisture). [1]: 51 The tree line is sometimes distinguished from a lower timberline, which is the line below which trees form a forest with a closed canopy. [2]: 151 [3]: 18
The Getty Center, perched on a hill above the much-traveled 405 freeway, is a 30-minute drive away (in normal conditions) and out of the immediate fire zone, was also closed through Monday.
The 2020 Dome fire, which burned more than 40,000 acres across the southwestern California desert — including in the national preserve, but in a different area from the York fire — destroyed ...
The lowest-elevation biotic zone in the Sierra Nevada is found along the boundary with the Central Valley. [5] This zone, stretching in elevation from 500 to 3,500 feet (150 to 1,070 m), is the foothill woodland zone, an area that is hot and dry in the summer with very little or no snow in the winter. [5]
Violent fires will remain possible until the extreme weather pendulum swings back to wet and California gets a soaking winter rain. Climate change is making when that will happen even harder to ...
Quercus kelloggii – California black oak; Canyon live oak; Arbutus menziesii – Pacific madrone (localized in the central Sierras) Moist wet-side forests Indicator species trees Sequoiadendron giganteum – Giant sequoia (sn-endemic) Pinus ponderosa – Ponderosa pine; Other trees Abies concolor – White fir; Acer macrophyllum – Bigleaf maple