[NatureNS] Age of hemlock trees

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Date: Tue, 19 Jul 2011 07:38:08 -0700 (PDT)
From: Paul MacDonald <paulrita2001@yahoo.com>
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Hi Annabelle=0AThe trees are approximately 27 cms in radius. For easy calcu=
lations.=0AI'm sure some others on the site will give more accurate calc bu=
t anyway=0AI took a piece of hemlock from the work shop and counted the rin=
gs on it.=0AThere was 46 rings or years growth in 9 cms.=A0That =A0would gi=
ve an estimate =0Aof the age of the trees at 138 years old.=0AThe size of t=
he rings will vary as to the age of the tree - older trees tend to=0Ahave s=
maller rings - younger larger. Should there be a change in the trees enviro=
nment=0Asay a larger tree blows down nearby the rings will be larger.=0ABet=
ter soil will result in larger rings and so on. =0ASo you can see my piece =
of hemlock can only give a rough estimate of the age of your trees.=0APerha=
ps some others can get out and count the rings on a piece of hemlock?=0AHav=
e a nice summer=0APaul=0A=A0=0A=A0=0A=0AFrom: Annabelle Thiebaux <hamst@xpl=
ornet.com>=0ATo: naturens@chebucto.ns.ca=0ASent: Monday, July 18, 2011 1:57=
:02 PM=0ASubject: [NatureNS] Age of hemlock trees=0A=0AMartial and I would =
like to estimate the ages of three eastern hemlock trees in a little woodla=
nd graveyard near Georgefield.=A0 Here are their measurements in metres. Ci=
rcumferences are at breast height.=0A=0ATree=A0=A0=A0 =A0=A0=A0 =A0=A0=A0 A=
=A0=A0=A0 =A0=A0=A0  B=A0=A0=A0 =A0=A0=A0  C=0AHeight=A0=A0=A0 =A0=A0=A0 =
=A0=A0=A0 22=A0=A0=A0 =A0=A0=A0 21=A0=A0=A0 =A0=A0=A0 17=0ACircumference=A0=
=A0=A0 =A0=A0=A0 1.52=A0=A0=A0 =A0=A0=A0 1.75=A0=A0=A0 =A0=A0=A0 1.83=0A=0A=
=0AEven very rough estimates would be of value to us with lower and upper b=
ounds such as 125-150 years.
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<html><body><div style=3D"color:#000; background-color:#fff; font-family:ti=
mes new roman, new york, times, serif;font-size:12pt"><div><span>Hi Annabel=
le</span></div><div><span>The trees are approximately 27 cms in radius. For=
 easy calculations.</span></div><div><span>I'm sure some others on the site=
 will give more accurate calc but anyway</span></div><div><span>I took a pi=
ece of hemlock from the work shop and counted the rings on it.</span></div>=
<div><span>There was 46 rings or years growth in 9 cms.&nbsp;That &nbsp;wou=
ld give an estimate </span></div><div><span>of the age of the trees at 138 =
years old.</span></div><div><span>The size of the rings will vary as to the=
 age of the tree - older trees tend to</span></div><div><span>have smaller =
rings - younger larger. Should there be a change in the trees environment</=
span></div><div><span>say a larger tree blows down nearby the rings will be=
 larger.</span></div><div><span>Better soil will result in larger
 rings and so on. </span></div><div><span>So you can see my piece of hemloc=
k can only give a rough estimate of the age of your trees.</span></div><div=
><span>Perhaps some others can get out and count the rings on a piece of he=
mlock?</span></div><div><span>Have a nice summer</span></div><div><span>Pau=
l</span></div><div><span></span>&nbsp;</div><div><span></span>&nbsp;</div><=
div><br></div><div style=3D"font-family: times new roman, new york, times, =
serif; font-size: 12pt;"><div style=3D"font-family: times new roman, new yo=
rk, times, serif; font-size: 12pt;"><font size=3D"2" face=3D"Arial"><div st=
yle=3D"margin: 5px 0px; padding: 0px; border: 1px solid rgb(204, 204, 204);=
 height: 0px; line-height: 0; font-size: 0px;" class=3D"hr" contentEditable=
=3D"false" readonly=3D"true"></div><b><span style=3D"font-weight: bold;">Fr=
om:</span></b> Annabelle Thiebaux &lt;hamst@xplornet.com&gt;<br><b><span st=
yle=3D"font-weight: bold;">To:</span></b> naturens@chebucto.ns.ca<br><b><sp=
an
 style=3D"font-weight: bold;">Sent:</span></b> Monday, July 18, 2011 1:57:0=
2 PM<br><b><span style=3D"font-weight: bold;">Subject:</span></b> [NatureNS=
] Age of hemlock trees<br></font><br>Martial and I would like to estimate t=
he ages of three eastern hemlock trees in a little woodland graveyard near =
Georgefield.&nbsp; Here are their measurements in metres. Circumferences ar=
e at breast height.<br><br>Tree&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;=
&nbsp;&nbsp; A&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;  B&nbsp;&nbsp;&nbsp; &n=
bsp;&nbsp;&nbsp;  C<br>Height&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&n=
bsp;&nbsp; 22&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; 21&nbsp;&nbsp;&nbsp; &nb=
sp;&nbsp;&nbsp; 17<br>Circumference&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; 1.=
52&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; 1.75&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;=
&nbsp; 1.83<br><br><br>Even very rough estimates would be of value to us wi=
th lower and upper bounds such as 125-150
 years.<br><br><br><br></div></div></div></body></html>
--0-575826974-1311086288=:50146--

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