Mike,
There are a number of white pines in MTSF that we'll see on Wednesday that we in ENTS have modeled to between 400 and 600 cubic feet of trunk volume. Additionally, there are 5 pines in Mohawk in the 700+ cubic feet class. I don't have a good handle on how total trunk volume can be converted to board feet. However, I assume that a 600-cube pine that theoretically yields 7,200 board feet will actually yield about 3,600 in lumber - a 50% wastage factor. I think Russ gave me some realistic factors in the past, but I've forgotten what he said. I'm curious as to what you will see in the largest trees. BTW, the single largest pine we'll visit is the Tecumseh Tree in the Elders Grove. Its dimensions are: DBH=45 inches, height = 163.3 feet, and average crown spread approximately 45 feet, maybe a little more. I once asked Karl Davies how many board feet he thought was in the Tecumseh Pine. To the eye, it didn't look much different then than now. He said he thought about 5,000 board feet. If we take the ENTS modeled volume of 779 cubic feet of trunk volume and run it through the calculation 779 x 12 x 0.5 = 4,674, that isn't far off Karl's estimate of 5,000. I wish I'd asked him what the waste factor he was assuming. By way of comparison, the largest pine we've modeled in Massachusetts is the Grandfather Tree in Monroe State Forest. Will Blozan climbed and modeled the tree to 967 cubic feet. The Ice Glen pine, also climbed and modeled by Will, is second with 933 cubes. I presume that a typical pine grown for lumber is between 100 and 120 feet in height and around 2 feet in diameter. If the tree is under 100 years old, its form factor is likely to be between 0.33 and 0.36. Taking a pine that is 110 feet in height and 2 feet in diameter and assuming a form factor of 0.35, the expected trunk volume calculates to 120 cubic feet. Tecumseh is 6.5 times that volume. No small tree. I think you'll enjoy seeing it. Bob ----- Original Message ----- From: "Mike Leonard" <[email protected]> To: [email protected] Sent: Sunday, August 9, 2009 2:01:00 PM GMT -05:00 US/Canada Eastern Subject: [ENTS] Re: Back to Mike Leonard about Wednesday Bob, Joe ; OK we ’ ll see you guys at the Charlemont Inn for breakfast this Wed. at 8:30. How big i s the big Algonquin tree? 2, 000 board feet? Wow we could fill half a log truck with that! OK I promise not to mark that tree! It will be interesting to look at some of these monster pines and think hey we should be growing more of these! Mike --~--~---------~--~----~------------~-------~--~----~ Eastern Native Tree Society http://www.nativetreesociety.org Send email to [email protected] Visit this group at http://groups.google.com/group/entstrees?hl=en To unsubscribe send email to [email protected] -~----------~----~----~----~------~----~------~--~---
