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larger.</span>&l
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Hi Larry and Annabelle=0AInteresting Larry.=0AMy piece of wood had 5.11 rin=
gs ( years of growth ) per cm,=0Ayour stump had 6.79=0AFor my calculation I=
had the same diameter 58 cms which gives a radius of 29 cms.=0AI subtracte=
d 2 cms for the bark to give 27 cms of wood.=0AThe respect ages then work o=
ut to 138 and 183 years.=0AIt would be fun to know exactly but I'm not goin=
g to find out!=0AHave a nice summer=0APaul=0A=0A=0A=0A_____________________=
___________=0AFrom: Larry Bogan <larry@bogan.ca>=0ATo: naturens@chebucto.ns=
.ca=0ASent: Tuesday, July 19, 2011 12:31:14 PM=0ASubject: Re: [NatureNS] Ag=
e of hemlock trees=0A=0A=0A Annabelle,=0A=A0 From the comment I made when m=
easuring the large hemlocks at the=0A Berwick Church Camp (see Big Trees=
List on http://www.naturns.ca)=0A=0ASpecies: Eastern Hemlock =0ACounty: Ki=
ngs =0ADiameter(m): 1.05 =0AHeight(m): 32 =0ANSFT Score: 137 =0ASubmitter: =
Larry and Alison Bogan =0ADate: July 2008 =0A: This is the largest of many =
tall Hemlocks. Several were measured but the next largest were 2.62 m and 2=
.69 m in circumference. This particular one is just north of the covered pa=
vilion behind the open-air air worship area. A nearby stump 0.81 m in diame=
ter had 275 growth rings. Scaling up to this tree makes it about 350 years =
old. The Church camp has been here since in 1874.=0A=0A=3D=3D=3D=3D =0ASo f=
or another estimate, you can scale from this stump that we=0A measured.=
=A0 Your largest is 0.58 m in diameter and that gives about=0A 200 years=
old for your oldest on this scale. It of course depends on=0A the envir=
onment while growing. As Paul mentioned the later rings are=0A usually c=
loser together and so this estimate is probably an over=0A estimate. =0A=
=0Aregards,=0ALarry Bogan=0A=0AOn 19/07/2011 11:38 AM, Paul MacDonald wrote=
: =0AHi Annabelle=0A>The trees are approximately 27 cms in radius. For easy=
calculations.=0A>I'm sure some others on the site will give more accurate =
calc but anyway=0A>I took a piece of hemlock from the work shop and counted=
the rings on it.=0A>There was 46 rings or years growth in 9 cms.=A0That =
=A0would give an estimate =0A>of the age of the trees at 138 years old.=0A>=
The size of the rings will vary as to the age of the tree - older trees ten=
d to=0A>have smaller rings - younger larger. Should there be a change in th=
e trees environment=0A>say a larger tree blows down nearby the rings will b=
e larger.=0A>Better soil will result in larger rings and so on. =0A>So you =
can see my piece of hemlock can only give a rough estimate of the age of yo=
ur trees.=0A>Perhaps some others can get out and count the rings on a piece=
of hemlock?=0A>Have a nice summer=0A>Paul=0A>=A0=0A>=A0=0A>=0A>=0A>From: A=
nnabelle Thiebaux <hamst@xplornet.com>=0A>To: naturens@chebucto.ns.ca=0A>Se=
nt: Monday, July 18, 2011 1:57:02 PM=0A>Subject: [NatureNS] Age of hemlock =
trees=0A>=0A>Martial and I would like to estimate the ages of three=0A =
eastern hemlock trees in a little woodland graveyard near=0A =
Georgefield.=A0 Here are their measurements in metres.=0A Ci=
rcumferences are at breast height.=0A>=0A>Tree=A0=A0=A0 =A0=A0=A0 =A0=A0=A0=
A=A0=A0=A0 =A0=A0=A0 B=A0=A0=A0 =A0=A0=A0 C=0A>Height=A0=A0=A0 =A0=A0=A0 =
=A0=A0=A0 22=A0=A0=A0 =A0=A0=A0 21=A0=A0=A0 =A0=A0=A0 17=0A>Circumference=
=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>=0A>Even very rough estimates would be of value to us with lower=0A =
and upper bounds such as 125-150 years.=0A>=0A>=0A>=0A>
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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 Larry a=
nd Annabelle</span></div><div><span>Interesting Larry.</span></div><div>My =
piece of wood had 5.11 rings ( years of growth ) per cm,</div><div>your stu=
mp had 6.79</div><div>For my calculation I had the same diameter 58 cms whi=
ch gives a radius of 29 cms.</div><div>I subtracted 2 cms for the bark to g=
ive 27 cms of wood.</div><div>The respect ages then work out to 138 and 183=
years.</div><div>It would be fun to know exactly but I'm not going to find=
out!</div><div>Have a nice summer</div><div>Paul</div><div><br></div><div>=
<br></div><div style=3D"font-size: 12pt; font-family: 'times new roman', 'n=
ew york', times, serif; "><div style=3D"font-size: 12pt; font-family: 'time=
s new roman', 'new york', times, serif; "><font size=3D"2" face=3D"Arial"><=
hr size=3D"1"><b><span style=3D"font-weight:bold;">From:</span></b> Larry B=
ogan
<larry@bogan.ca><br><b><span style=3D"font-weight: bold;">To:</span>=
</b> naturens@chebucto.ns.ca<br><b><span style=3D"font-weight: bold;">Sent:=
</span></b> Tuesday, July 19, 2011 12:31:14 PM<br><b><span style=3D"font-we=
ight: bold;">Subject:</span></b> Re: [NatureNS] Age of hemlock trees<br></f=
ont><br><meta http-equiv=3D"x-dns-prefetch-control" content=3D"off"><div id=
=3D"yiv1745054656">=0A=0A =0A=0A =0A <title></title>=0A =0A =0A =
Annabelle,<br>=0A From the comment I made when measuring the lar=
ge hemlocks at the=0A Berwick Church Camp (see Big Trees List on <a rel=
=3D"nofollow" class=3D"yiv1745054656moz-txt-link-freetext" target=3D"_blank=
" href=3D"http://www.naturns.ca">http://www.naturns.ca</a>)<br>=0A <tabl=
e bgcolor=3D"#ffffff" border=3D"1" cellpadding=3D"2" width=3D"400">=0A =
<tbody>=0A <tr>=0A <td>Species: <span>Eastern Hemlock</spa=
n></td>=0A </tr>=0A <tr>=0A <td>County: <span>Kings<=
/span></td>=0A </tr>=0A <tr>=0A <td>Diameter(m): <sp=
an>1.05</span></td>=0A </tr>=0A <tr>=0A <td>Height(m=
): 32</td>=0A </tr>=0A <tr>=0A <td>NSFT Scor