Sierra Nevada upper montane forest

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Upper montane forest in the Ansel Adams Wilderness Big lodgepole on rock.jpg
Upper montane forest in the Ansel Adams Wilderness

The Sierra Nevada upper montane forest is a vegetation type found below the treeline in the United States Sierra Nevada range. [1] It is generally located above the mixed coniferous forest and below the alpine zone. [1] Overstory trees are typically cone shaped to shed the snow. [1]

Characteristic trees including lodgepole pine ( Pinus contorta ), Jeffrey pine ( Pinus jeffreyi ), western white pine ( Pinus monticola ) California red fir ( Abies magnifica ), and Sierra juniper ( Juniperus grandis ), and typical understory trees and shrubs such as huckleberry oak ( Quercus vaccinifolia ) and red heather ( Phyllodoce breweri ). [1]

Environment

On the western slopes of the Sierra Nevada range, upper montane vegetation can be found at elevations from 5,500 to 7,500 feet (1,700 to 2,300 m) in the northern part of the range, 6,500 to 8,000 feet (2,000 to 2,400 m) in the central part, and 8,000 to 10,000 feet (2,400 to 3,000 m) in the southern part. [1] On the eastern slopes, it is at higher elevations. Precipitation in areas of upper montane forest vegetation type is 35 to 65 feet (11 to 20 m), mostly as snowfall. [1] Summer high temperatures range from 73 to 85 °F (23 to 29 °C), and winter lows are below 26 °F (−3 °C). [1] Growing season is about four months because of long-lasting, deep snow. [1]

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Upper montane forest

The upper montane forest is a vegetation type generally found above the mixed coniferous forest and below the subalpine forest vegetation types. Most of what grows in upper montane forests are conifers, because of the short growing season.

Flora of the Sierra Nevada alpine zone

The flora of the U.S. Sierra Nevada alpine zone is characterized by small, low growing, cushion and mat forming plants that can survive the harsh conditions in the high-altitude alpine zone above the timber line. These flora often occur in alpine fell-fields. The Sierra Nevada alpine zone lacks a dominant plant species that characterizes it, so may or may not be called a vegetation type. But it is found above the subalpine forest, which is the highest in a succession of recognized vegetation types at increasing elevations.

The flora of the Colorado Plateau and Canyonlands region of the Western United States.

References

  1. 1 2 3 4 5 6 7 8 Wiese, Karen (2013). Sierra Nevada Wildflowers: a Field Guide to Common Wildflowers and Shrubs of the Sierra Nevada, including Yosemite, Sequoia, and Kings Canyon National Parks (2nd ed.). Globe Pequot Press. ISBN   0762780347.