The subalpine zone is the biotic zone immediately below tree line around the world. Species that occur in this zone depend on the location of the zone on the Earth, for example, Snow Gum in Australia, or Subalpine Larch, Mountain Hemlock and Subalpine Fir in western North America.
Trees in the subalpine zone often become krummholz, that is, crooked wood, stunted and twisted in form. At treeline, tree seedlings may germinate on the lee side of rocks and grow only as high as the rock provides wind protection. Further growth is more horizontal than vertical, and additional rooting may occur where branches contact the soil. Snow cover may protect krummholz trees during the winter, but branches higher than wind-shelters or snow cover are usually destroyed. Well-established krummholz trees may be several hundred to a thousand years old.
Montane grasslands and shrublands may be found in the subalpine zone. Tuolumne Meadows in the Sierra Nevada of California, USA, is an example of a subalpine meadow.
Example subalpine zones around the world include the French Prealps in Europe, the Sierra Nevada and Rocky Mountain subalpine zones in North America, and subalpine forests in the eastern Himalaya, western Himalaya, and Hengduan mountains of Asia.
Read more about this topic: Montane Forest
0,56°C per 100 metres on yearly average), three different altitudinal zones, each having distinct climate, are found in the Swiss Alps Subalpine zone The Subalpine zone is the region which lies below the ... The upper limit of the Subalpine zone is located at about 1,800 metres on the north side of the Alps and at about 2,000 metres on the south side ... Alpine zone The Alpine zone is situated above the tree line and is clear of trees because of low average temperatures ...
... Diversity of herbs in the subalpine zone is usually less than lower-elevation zones such as upper and lower montane ... For a fine-scale classification of subalpine meadow communities, see Benedict ... The composition of tree species within Sierran subalpine is variable with comparatively high diversity for subalpine ...
... The subalpine zone is the biotic zone immediately below tree line around the world ... Species that occur in this zone depend on the location of the zone on the Earth, for example, Snow Gum in Australia, or Subalpine Larch, Mountain Hemlock and Subalpine Fir in western North America ... Trees in the subalpine zone often become krummholz, that is, crooked wood, stunted and twisted in form ...
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