Jenny: It is probable that you have incomplete information based on the Big Tree Point system developed by American Forests in the 1950's. You can check out their system at this link: http://www.americanforests.org/resources/bigtrees/measure.php. A tree is awarded Big Tree Points as follows: 1 point for each inch of circumference at breast height, 1 point of each foot of height, and 1/4 point for each foot of crown spread. Have you checked out the ENTS page on measurement. Will has an excellent write up of how to accurately measure all three attributes. Hope this helps, but remember if you have incomplete information you will have to go out and do it yourself. T. Shasrp
On Mar 25, 9:17 pm, JennyNYC <[email protected]> wrote: > HI, > > I was filling out applications for the Forest Manager to submit to the > organization that determines which trees are champions (I really ought > to know what that is...) and wondered what anyone thought of some of > the points/measurements. I only have a few pieces of data. (Their > locations were not written down so when I can I'll get some help and > go take pix.) > > Or maybe you can tell me what site to go to to compare? > > Here are some of the submissions for native trees. I didn't have time > to get all the measurements (probably need dbh at least?): > > American Elm (Ulmus americana) 115 ft, tall, 296 points > Sweetgum (Liquidambar styraciflua) 108 ft. tall, 272.5 points > Paper Birch (Betula papyfera) 71 ft tal, 146 points > Blue Ash - 161.5 ft. tall, 264 points > Betula lenta - 90 ft. tall, 181.5 points > Eastern Hemlock (allegedly healthy...) - 106 ft. tall, 168 points > > Thanks! > > Jenny > > Jenny --~--~---------~--~----~------------~-------~--~----~ 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] -~----------~----~----~----~------~----~------~--~---
