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  2. List of superlative trees - Wikipedia

    en.wikipedia.org/wiki/List_of_superlative_trees

    Each of the trees in this stand is a genetically identical male that has reproduced vegetatively. Although no single tree in this stand is of that age, the stand itself as a single organism has existed that long. [107] Individual trees in the clonal patch have been listed as having ages of 2000 [108] [109] or even to 3000 years old. [110] [111]

  3. Tree line - Wikipedia

    en.wikipedia.org/wiki/Tree_line

    In addition, no trees survive on any of the subantarctic islands near the peninsula. [citation needed] Trees growing along the north shore of the Beagle Channel, 55°S. Southern Rata forests exist on Enderby Island and Auckland Islands (both 50°S) and these grow up to an elevation of 370 metres (1,200 ft) in sheltered valleys. These trees ...

  4. Tundra - Wikipedia

    en.wikipedia.org/wiki/Tundra

    The soil there is frozen from 25 to 90 cm (10 to 35 in) down, making it impossible for trees to grow there. Instead, bare and sometimes rocky land can only support certain kinds of Arctic vegetation , low-growing plants such as moss, heath ( Ericaceae varieties such as crowberry and black bearberry ), and lichen .

  5. Montane ecosystems - Wikipedia

    en.wikipedia.org/wiki/Montane_ecosystems

    The elevation where trees fail to grow is called the tree line. The biotemperature of the subalpine zone is between 3 and 6 °C (37 and 43 °F). [5] Above the tree line the ecosystem is called the alpine zone or alpine tundra, dominated by grasses and low-growing shrubs. The biotemperature of the alpine zone is between 1.5 and 3 °C (34.7 and ...

  6. Tundra of North America - Wikipedia

    en.wikipedia.org/wiki/Tundra_of_North_America

    The adversity of soil and climatic conditions proves to low production levels, as well as little biomass accumulation due to slow rates of nutrient release in cold and wet soils, specifically as a result of limited nitrogen and phosphorus (Nadelhoffer et al. 1996) Additionally, there are low temperatures and strong winds in the tundra causing most vegetation to be dominated by woody plants ...

  7. Ecology of the Rocky Mountains - Wikipedia

    en.wikipedia.org/wiki/Ecology_of_the_Rocky_Mountains

    Douglas-firs grow in a broad range from Mexico to British Columbia, generally from near lower treeline upward in elevation to spruce-fir forests. In Colorado, the species ranges from about 5,410 to 8,860 feet (1,650 to 2,700 m) and is often found in mixed stands with ponderosa pine, blue spruce, or lodgepole pine. Like ponderosa pine, Douglas ...

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