ENTS,
I spent a couple of hours this afternoon measuring trees in the Broadbrook
corridor, a 100-acre swath that includes our backyard. The season's new growth
has raised the RHI10 to 115.5. That's pretty impressive. In fact, it presently
ranks 3rd in the Connecticut River Valley. Robinson SP is first at 118.9, Mt
Tom State Reservation is second at 115.6, and Broadbrook is third.
Species HeightCircumference DOM-Last
white pine137.214.910/8/2008
tuliptree129.46.88/28/2008
e. hemlock1208.19/16/2007
pignut hickory119.46.610/8/2008
n. red oak110.75.511/5/2006
white oak109.76.95/5/2007
black birch108.76.410/8/2008
scarlet oak107.47.310/15/2005
sugar maple106.56.95/5/2007
white ash105.54.52/12/2006
Rucker Index115.57.4
The profile of the index at 10, 15, and 20 species is as follows.
Index # Trees
115.5 10
110.4 15
102.2 20
Two trees that I think are exceptional in the Broadbrook corridor are the
hop hornbeam that just makes 78.0 feet and the black birch at 108.7 feet. I
still can't believe the 78-foot hop hornbeam grows within about 300 feet of our
back door. A lone pitch pine not far from the hop hornbeam reaches 89.3 feet in
height and is a skinny 4.8 feet in girth. The black birch is about a quarter
mile away. BTW, the tallest tree, the white pine, is a double. A nearby
single-stemmed pine measures 11.3 feet around and 120.0 feet in height. Those
dimensions give the big pine 1532 ENTS points (C^2*H/10).
When most of the leaves have fallen, I'll be able to update the index
further. At this point, the canopy is too dense to remeasure most of the trees
comprising the three Rucker indexes.
Bob
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