giovedì 1 settembre 2016

superlative tree in the world





The heights of the tallest trees in the world have been the subject of considerable dispute and much exaggeration. Modern verified measurements with laser rangefinders, or with tape drop measurements made by tree climbers (such as those carried out by canopy researchers), have shown that some older measuring methods and measurements are often unreliable, sometimes producing exaggerations of 5% to 15% or more above the real height.[1] Historical claims of trees growing to 130 m (430 ft), and even 150 m (490 ft), are now largely disregarded as unreliable, and attributed to human error.



The following are now accepted as the tallest reliably measured specimens from the top 26 species. This list shows only currently standing specimens:



1. Coast Redwood (Sequoia sempervirens): 115.61 m (379.3 ft), "Hyperion", Redwood National Park, California, United States

2. Mountain Ash (Eucalyptus regnans): 99.8 m (327.4 ft), "Centurion", Arve Valley, Tasmania, Australia

3. Coast Douglas-Fir (Pseudotsuga menziesii var. menziesii): 99.76 m (327.3 ft), Brummit Creek, Coos County, Oregon, United States

4. Sitka Spruce (Picea sitchensis): 96.7 m (317 ft), Prairie Creek Redwoods State Park, California, United States

5. Giant Sequoia (Sequoiadendron giganteum): 95.8 m (314 ft), Sequoia National Forest, California, United States

6. Manna Gum (Eucalyptus viminalis): 91 m (299 ft), "White Knight", Evercreech Forest Reserve, Tasmania, Australia

7. Southern Blue Gum (Eucalyptus globulus): 90.7 m (298 ft), Tasmania, Australia

8. Yellow Meranti (Shorea faguetiana): 89.5 m (294 ft), Maliau Basin Conservation Area, in Sabah on the island of Borneo

9. Alpine Ash (Eucalyptus delegatensis): 87.9 m (288 ft), Tasmania, Australia

10. Philippine Rosewood (Petersianthus quadrialatus): 87.78 m (288.0 ft), Next to national highway in eastern outskirts of San Francisco town, Alegria, Agusan del Sur, Mindanao, Philippines.

11. Brown Top Stringbark (Eucalyptus obliqua): 86 m (282 ft) "King Stringy", Tasmania, Australia.

12. Mengaris (Koompassia excelsa): 85.76 m (281.4 ft) Tawau Hills National Park, in Sabah on the island of Borneo

13. Karri(Eucalyptus diversicolor): 84.99 m (278.8 ft) "Stewart's Karri", near Manjimup, Western Australia.

14. Shorea argentifolia: 84.85 m (278.4 ft) Gaharu ridge of Tawau Hills National Park, in Sabah on the island of Borneo.

15. Shorea superba: 84.41 m (276.9 ft) Gergassi Ridge of Tawau Hills National Park, in Sabah on the island of Borneo.

16. Shining Gum (Eucalyptus nitens): 84.3 m (277 ft), Victoria, Australia.

17. Sugar Pine (Pinus lambertiana): 83.45 m (273.8 ft) near Yosemite National Park, California.

18. Western Hemlock (Tsuga heterophylla): 83.34 m (273.4 ft) was discovered in November 2014 by Mario Vaden and Chris Atkins in Prairie Creek Redwoods State Park, California.

19. Hopea nutans: 82.82 m (271.7 ft) Gaharu ridge of Tawau Hills National Park, in Sabah on the island of Borneo.

20. Shorea johorensis: 82.39 m (270.3 ft) Coco-Park boundary of Tawau Hills National Park, in Sabah on the island of Borneo.

21. Shorea smithiana: 82.27 m (269.9 ft) Coco-Park boundary of Tawau Hills National Park, in Sabah on the island of Borneo.

22. Ponderosa Pine (Pinus ponderosa): 81.77 m (268.3 ft) in Myers Creek drainage of Rogue River – Siskiyou National Forest, Oregon.

23. Grand Fir (Abies grandis): 81.4 m (267 ft) in the Glacier Peak Wilderness, Washington.

24. Shorea gibbosa: 81.11 m (266.1 ft) River Flats of Tawau Hills National Park, in Sabah on the island of Borneo.

25. Lawson Cypress (Chamaecyparis lawsoniana): 81.08 m (266.0 ft), In Jedediah Smith Redwoods State Park, California.

26. Noble Fir (Abies procera): 80.50 m (264.1 ft), Washington State, United States.



    There are also some other very tall tree species with claimed heights of 80 metres (260 ft) and even more:



Araucaria hunsteinii, Cupressus cashmeriana, Taiwania cryptomerioides, Allantospermum borneense, Alstonia pneumatophora, Shorea mujongensis, Dyera costulata, Dryobalanops lanceolata, Parashorea chinensis, Abies nordmanniana, Eucalyptus denticulata, Eucalyptus grandis, Eucalyptus pilularis, Corymbia maculata, Ulmus mexicana.


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