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TOPIC: Broadbrook Rucker Indexes
http://groups.google.com/group/entstrees/browse_thread/thread/4248af3cfe31bda7?hl=en
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== 1 of 1 ==
Date: Wed, Oct 8 2008 9:36 pm
From: dbhguru@comcast.net
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 |
Height |
Circumference |
DOM-Last |
| white
pine |
137.2 |
14.9 |
10/8/2008 |
| tuliptree |
129.4 |
6.8 |
8/28/2008 |
| e.
hemlock |
120 |
8.1 |
9/16/2007 |
| pignut
hickory |
119.4 |
6.6 |
10/8/2008 |
| n.
red oak |
110.7 |
5.5 |
11/5/2006 |
| white
oak |
109.7 |
6.9 |
5/5/2007 |
| black
birch |
108.7 |
6.4 |
10/8/2008 |
| scarlet
oak |
107.4 |
7.3 |
10/15/2005 |
| sugar
maple |
106.5 |
6.9 |
5/5/2007 |
| white
ash |
105.5 |
4.5 |
2/12/2006 |
| Rucker
Index |
115.5 |
7.4 |
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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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