Ancient Yews
Submitted by Thorgrim on Tuesday, 13 September 2005 Page Views: 15962
Environment
Recent discussion on the age of ancient trees has been inconclusive simply because experts disagree on how to accurately gauge the age of our longest lived tree - the yew. Other trees have a single trunk and so it is possible to count the annual rings in a sawn cross section or by boring a core with an auger from a living tree. Not so for the yew because it does not have a single trunk. As it ages, it sends up multiple trunks so annual tree rings are meaningless. The only way to estimate the age of a yew is to measure its girth. Yews grow rapidly when young and then slow down. This means that estimates have to consider different rates of growth throughout the long life span of these most ancient of living things in the British landscape.
The Tree Council has issued a guide from the Charnwood Trust environmental charity. You need to measure the girth of your yew at about four feet from the ground. So get a long tape meaure or length of rope! Then consult this chart which I have extracted to apply only to those trees old enough to interest readers of the Portal:
Girth in feet (cms)..Estimated age
27 (823)...................1,800 years
30 (914)...................2,400 "
33 (1006)..................3,000 "
35 (1067)..................4,400 "
36 (1097)..................5,600 "
Over 36 feet ......Over 6,000 years old!
Please tell us of the oldest that you find and any nearby ancient sites. Grid refs would be appreciated.




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Wir möchten mehr über diese Stätte erfahren. Bitte zögern Sie nicht, eine kurze Beschreibung und relevante Informationen in Deutsch hinzuzufügen.
Nous aimerions en savoir encore un peu sur les lieux. S'il vous plaît n'hesitez pas à ajouter une courte description et tous les renseignements pertinents dans votre propre langue.
Quisieramos informarnos un poco más de las lugares. No dude en añadir una breve descripción y otros datos relevantes en su propio idioma.