Diameter at Breast Height. It's an accepted term for referencing measurement of trees.
The reason they use breast height instead of ground level is to not include root flare, which can vary greatly on similar size trees.
I was surprised to see this thread as I'm wearing a shirt that says "DBH" at the appropriate height! At Dr. Miller's retirement party, he joked that he would need a hat that read DBH across it in order to have it at 4.5 feet. JPS - would you need a belt buckle with "DBH" on it?
This page focuses on calculating the number of points for champion trees in Wisconsin. Speaking of them, take a look at the national register of big trees at: http://www.americanforests.org/resources/bigtrees/
Hey Rich, thanks for asking the question....I've been wondering the same thing. I thought I was the only one who didn't know what it meant....so I didn't start a thread. Guess if I wanted to know........I should have asked!!!!
I'm just glad this got cleared up.
I thought it had to do with hugging my short wife!
Or maybe when I was a kid having to hug my Aunt Bessy . . . that was one big lady!