Go to OSU College of Forestry LWGate Home Page.From: "Gartner, Barbara" <Barbara.Gartner@orst.edu>
Subject: FW: [IAWA Forum] Wood cores
Date: Thu, 24 Oct 2002 21:21:01 -0700
Previous Article (by Date): RE: [IAWA Forum] Wood cores Geoff.Downes@csiro.au
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I sent the following to the forum yesterday but it didn't seem to accept it You might consider the motorised corer at http://www.ffp.csiro.au/tigr/trecor/ if taking a 12mm core and leaving a 22mm hole is allowed The CSIRO corer is now being distributed by CSIRO. It can overheat and even char the cores if (a) the corer is blunt or (b) you don't use a rocking motion to remove the wood dust every 2-3 cm of coring. Sharpening the cores has been a problem in the past but I think they now have these fixed. We have staff regularly using it to core a range of eucalypts, coring up to 100-120 cores per day. Geoff Downes -----Original Message----- From: Pruyn, Michele [mailto:Michele.Pruyn@orst.edu] Sent: Friday, 25 October 2002 5:05 AM To: David Goldstein; iawa@COF.ORST.EDU Subject: RE: [IAWA Forum] Wood cores Dear David and fellow list serve members, There is an auger (drill bit) developed by CSIRO available through J. Blackwood & Son Limited in Sydney. They have developed bits for softwoods and hardwoods. Basically, it is a hollow bit that drills the wood around a a 12 mm dia. core, leaving a 25 mm hole in the tree. You can attach the bit to a gas-powered drill via an adapter that you purchase from the company. My experience has been that this tool works very well, but that the cores come out of the trees basically boiling... such that most of the living cells are killed in the process. Contact Info for the company: Mr. Grant Clay J. Blackwood & Son Lmtd., A.C.N. 000 010 300 13 Cooper Street, Smithfield, Sydney NSW 2164 Telephone: 61 (02) 9203 0111 Fax: 61 (02) 9203 0533 Good Luck, Michele L. Pruyn PhD, Oregon State University Dept. Wood Science & Engineering -----Original Message----- From: David Goldstein [mailto:djgoldste@yahoo.com] Sent: Thursday, October 24, 2002 9:45 AM To: iawa@COF.ORST.EDU Subject: Re: [IAWA Forum] Wood cores All, I find this topic of particular interest, and greatly appreciate Henri's tips and look forward to his upcoming article. However, I have been wondering from my own research sampling Prosopis pallida on the Peruvian North Coast if there is recommended electric or gas powered alternative to hand coring in the field. I have been extremely unsuccessful in coring these trees with standard increment borers. Any comments are appreciated. David Goldstein ===== David John Goldstein SIUC/Dept. of Anthropology Faner Hall Carbondale, IL 62901 USA Tel: 917-930-4529 E-mail:djgoldste@yahoo.com
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