Lee/Paul- You brutes...;>)!
-don > Date: Thu, 7 Jan 2010 07:48:32 -0600 > From: [email protected] > To: [email protected] > Subject: Re: [ENTS] age of small trees. techniques? > > Don: > > I cored quite a few trees in the 2.5-3.0 cm dbh size class while working > on my Ph.D., mostly sugar maples and hemlocks. For the maples, I had to > have someone stand on the opposite side of the tree and push towards me, > otherwise the tree just bent and pushed away when I tried to core it. It > is really hard to get the corer started in small trees with hard wood. > > A few of the small tree developed a split, but most fared OK, and are > still alive 25 years later. > > Lee > > DON BERTOLETTE wrote: > > Will/Ryan- > > I'm too old to be intuitive on metric/standard conversion, but > > wouldn't 50mm be about 2 inches? I'm not sure I'd be comfortable > > coring 2 inch diameter trees...wouldn't the corer with threads > > approach 1/2" in diameter? With little wood left on each side to > > 'strengthen' the coring point, I'd think that it would have all the > > elegance of an exit wound left by a 38 caliber S&W...;>) > > -Don > > > > ------------------------------------------------------------------------ > > From: [email protected] > > To: [email protected] > > Subject: RE: [ENTS] age of small trees. techniques? > > Date: Wed, 6 Jan 2010 20:05:05 -0500 > > > > Ryan, > > > > > > > > A small borer should work. They are available in sizes as short as 6 > > inches. > > > > > > > > Will F. Blozan > > > > President, Eastern Native Tree Society > > > > President, Appalachian Arborists, Inc. > > > > > > > > //"No sympathy for apathy"// > > > > ------------------------------------------------------------------------ > > > > *From:* [email protected] [mailto:[email protected]] > > *On Behalf Of *Ryan McEwan > > *Sent:* Wednesday, January 06, 2010 7:27 PM > > *To:* [email protected] > > *Subject:* [ENTS] age of small trees. techniques? > > > > > > > > Hi all, > > > > A former advisee of mine has moved on and is now working on a study of > > forest dynamics on Mount St. Helens. He is working right at > > tree-line. He would like to age the trees, but he is not allowed to > > destructively sample (cut) them. The diameter of many of these trees > > is 50mm. YIKES!! That is small. He asked me for advice on how to do > > this and I dont have a the foggiest clue. ENTS to the rescue? > > > > Best, > > Ryan > > > > ------------------------------------------------------------------------ > > Hotmail: Trusted email with powerful SPAM protection. Sign up now. > > <http://clk.atdmt.com/GBL/go/196390707/direct/01/> _________________________________________________________________ Hotmail: Powerful Free email with security by Microsoft. http://clk.atdmt.com/GBL/go/196390710/direct/01/
