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Stem diametercrown volume
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<mike ellison>
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I am looking for data correlating stem diameter with crown volume/biomass. Can you help with references? Any assistance would be appreciated.

Mike Ellison
 
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<Scott Cullen>
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Reply to post by Mike Ellison, on April 17, 2000 at 17:20:10:

Mike,

I've been looking and haven't found anything. I'd think the relationship would be very Species, age and site related.... though I'll double check Mattheck, he might suggest that Species is not a factor.

I've actually been looking a step farther back in the analysis.... formulae or protocols for determining crown volume.

Scott
 
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<Wayne>
posted
Reply to post by Scott Cullen, on April 17, 2000 at 17:20:10:

Sounds like this is a question for a terrestrial ecologist. I'll poke around NYBG and see if I can get any leads. Calculating biomass is one of the standard steps in forest ecology but we in arboriculture haven't had to deal with it much in the past.
 
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<Wayne Cahilly>
posted
Reply to post by Wayne, on April 18, 2000 at 06:44:26:

Ok, here's a quick course in allometry, the study of the size relationship between one part of a plant and another, most frequently dbh / total biomass.

Since species vary in major ways, the method used is to select the allometric equations that best fit the species in question. The following link is to a student project at Yale School of Forestry working with Sassafras and some other species. One of our Horticulture staff was a student in this project and gave me the link. Keep in mind, it is a student project and does not cover all aspects of the subject.

http://www.yale.edu/fes519b/totoket/allom/allom.htm

Enjoy!!

Wayne
 
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<mike ellison>
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Reply to post by Wayne Cahilly, on April 19, 2000 at 09:03:30:

Thankyou all for your comments. The Sassafras link was particularly helpful.
 
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