Rethinking
the ENTS role/MTSF |
dbhg-@comcast.net |
Apr
17, 2004 14:51 PDT |
ENTS:
The e-mails of the last few days about
big/tall tree lists and adopting new measures, an upcoming study
of tree growth in MTSF by FMTSF and ENTS, tree naming ceremonies,
the ENTS website, the cancellation/postponement of our April
event in Asheville, the general list chit chat have all prompted
me to seriously think about the ENTS mission. Are we on track?
Are some aspects of our overall mission getting ignored or
shortchanged, while others are being beat to death? Is doing
more of the same necessarily better? Lots of questions to think
about.
Our original purpose in establishing
ENTS was to celebrate trees and important forest sites in art,
prose, poetry, music, photography, mythology, medicine, and
science and to develop historical documentation for the trees at
important forest sites such as Cook Forest, PA, the GSMNP,
Congaree Swamp NP, MTSF, Hearts Content, the Porcupine Mtns and
other important eastern big tree sites. We also pledged
ourselves to develop good measurement methods for the common
tree measures of circumference, height, and crownspread.
Over the past several years, the
historical documentation mission has been combined with science
and sport to the benefit of the big tree sites. If we've over
done it on tree height measurements, it is because our
predecessors had failed to get the measurers of the great forest
sites and we needed to make up for dearth of reliable data.
We're still making up for the short fall, but we're getting
there.
Along the way, we adopted a compromise
measure of site potential, productivity, and current achievement
called the Rucker Index. We routinely compute the index for new
sites and polish up the indices for existing sites. We
understand what we're doing, but it can appear to others that we
give too much weight to an index. However, all of the central
players can give a dozen reasons off the top of their heads as
to why two indices with the same magnitude may represent
non-comparable situations - even if the two sites contain the
same species. But do we convey our understanding from our tree
measurements? No, we don't. We can improve upon the
communication of our interpretations. How might we do that?
Let's take my forest icon - MTSF. Its
Rucker index presently stands at 134.5 based upon the maximum
heights of the 10 tallest species. We often cite that statistic
when comparing Mohawk to Cook Forest, Zoar Valley, and other
exemplary sites. However, what does the 134.5 really tell us? Do
we have a few exceptional specimens in Mohawk growing among a
far more ordinary distribution of trees? To answer this
question, we need to extend our base of measured trees.
If we do a Rucker index by species and
then average the 10 species indices, we get 126.1 for Mohawk as
compared to 134.5 for the maximums. The average is 94% of the
maximum. The range runs from 91% to 97% of the maximums - except
for one species, American beech, which is 85%. The index of
126.1 is based on 100 trees instead of 10. But can we now
picture the canopy of the Mohawk forest? No, because we included
only 10 species in our indices.
If we increase the number of participating
species from 10 to 13, we drop the index of the maximums to
129.6 and the index for the averages to 121.6. Why 13? Well,
that is based on the limitations of our current database. We
should extend the count to 14 to include all the commonly
distributed species. Were we to do that and were we to extend
our searches, we'd end up with an index of about 120. Were we to
take the process to include the top 16 species, we'd likely get
about 118. So going from 10 to 16 species and including the top
10 of each species would drop the index from 134.5 to about 118.
Do we now have a complete picture? Far from it.
Even the extension of the sample base
from 10 trees to 160 trees leaves important questions
unanswered. Do most of the superlative Mohawk trees grow in a
limited region? Even more restrictive, do they grow in a
contiguous area? Is there a ceiling to floor range for the
canopy within the areas that aren't too young or that represent
marginal growing conditions? Can we, for example, expect to see
a canopy that commonly makes it to a particular height threshold
(say 100 feet) in just about any place we might look where
growing conditions are reasonably favorable? These questions and
others have to be answered if we're to gain a truly complete
picture of the Mohawk forest in terms of vertical structure.
So from our existing database, where can
we go to provide a more realistic picture? The following
statistics provide us with a starting point.
1. Rucker Index based on maximums for 10
tallest species: 134.5
2. Rucker Index based on averages for 10
tallest species: 129.6
3. Rucker Index based on maximums for 13
tallest species: 126.1
4. Rucker Index based on averages for 13
tallest species: 121.6
5. Rucker Index based on averages for 14
tallest species: 120.0
6. Rucker Index based on average for
single tallest species: 159.5
7. Rucker Index based on average for
single shortest species: 99.3
8. Number of species reaching 150 feet
and over: 1
9. Number of species reaching 140 feet
and over: 2
10. Number of species reaching 130 feet
and over: 6
11. Number of species reaching 120 feet
and over: 11
12. Number of species reaching 100 feet
and over: 20
13. Tallest single tree: 164.2
14. Number of trees measured to over 160
feet: 5
15. Number of trees measured to over 150
feet: 60
16. Number of trees measured to over 140
feet: 162
17. Area encompassing very high growth
potential: 600 acres
18. Area encompassing high growth
potential: 1200 acres
19. Age range of tall trees: 80 to 350
years
20. Common age range for tallest trees:
120 to 200 years
So what kind of a picture do the above
statistics paint? Do they suggest pockets of super trees? Do
they tell us what percentage of the canopy surpasses 80 feet, 90
feet, 100 feet in height, etc.? By region? By terrain type? By
aspect? By elevation? Overall? Do they tell us what the forest
of the future might look like? No they don't. To get a complete
picture of the vertical structure of Mohawk's forest, we still
have a long, long way to go. It would help immensely to have a
cumulative height distribution for a site. What % of the canopy
surpasses 80 feet, 90 feet, 100 feet, etc. This kind of
distribution along with a picture of the contribution made of
each species and all the current maximums is where we're headed
next with MTSF.
So, are we mesmerized by the sport statistics
that we have fun teasing each other with? Hardly.
Bob
|
Re:
Rethinking the ENTS role |
Edward
Frank |
Apr
17, 2004 16:57 PDT |
Bob,
An excellent summary of what is being done a MTSF to promote the
ENTS
mission. I believe we as an organization are making progress on
a wide
variety of fronts toward meeting those original goals. Each
person can
contribute in his own way toward pursuing those goals. I don't
believe it
is necessary for everyone to become statisticians or detail a
single forest.
There is much that can be done. We need to at this stage to pull
together
the diverse work people are doing across the eastern US and
Canada under
our canopy. The criteria should not be so much what kind of
contribution
they are making, measurement, exploration, data analysis,
photography, or
writing. The criteria should be the quality of the effort and
results.
Not everything is successful, so the cancellation of the
Ashville event is a
disappointment, but not a cause to reevaluate what the
organization is
trying to do. Nor do I feel we are trying to take on too much at
once. We
will accomplish what we can. When we talk about projects which
we don't
have the time to pursue, it still gives us food for thought when
planning
future endeavors. I would also encourage people to continue to
write or
start to write descriptions of the various sites. Prose can be
as valuable
tool as statistics and it allows the inclusion of impressions or
details
that are hard to quantify.
My feeling is that we should continue on full speed ahead and
see where it
carries us. If things work out, others will come along for the
ride and
continue our progress. Maybe we can make a difference in how
forests are
seen by the general public and the forestry profession. Maybe
not. I
think some progress is being made in how trees are being
measured. Stay
the course everyone.
Ed Frank
|
Re:
Rethinking the ENTS role |
Phil
LaBranche |
Apr
17, 2004 18:10 PDT |
-Bob and Ed,
As a new comer here I try not to
open my mouth
and be out of line, but contribute when I think it's right. I'm
one of Gary
s students, and that is why I originally started coming here.
However, it's
the professionalism of the group that has kept me here. While I
didn't
understand a lot of what was going on in the beginning, I've
learned a lot
during my short tenure here. This isn't just an online group
only here to
pass time and judgment. Instead, ENTS is an organization that
has me
inspired to look at the forest in a new light. Not everyone here
agrees,
but THAT is what leads to new ways of doing things.
This post started out
with a lot to do about
measuring and indexes. First, it's of my opinion that while it
can be
important and exciting to log tall trees, there is more we need
to know.
Yes, there are tall trees in MTSF. The question that is in my
mind is why?
And how? While the heights and diameters are good data
collections, I think
it's a case of not seeing the forest through the trees. Instead
of
concentrating on just one aspect of the forest, why not take
what data we
already know and expand upon that. This way, we are more aware
of what we
have, and that gives a better background to protect those very
forests.
Another item ENTS could look at are soil, among other things. As
for the
indexes, this is where I get lost. I've picked up on more than
one, and the
numbers throw me for a loop. Could there be a Index 101 class
for the
uninitiated??
Phil
|
RE:
Rethinking the ENTS role |
Ed
Frank |
Apr
17, 2004 19:01 PDT |
Phil,
Feel free to comment as often as you like on whatever issue you
like.
What I see is that we are a diverse group of people, each of
whom have a
different idea of what is important. Bob, for example is interested
in
trees across the entire eastern US, but concentrates most of his
efforts
on MTSF, providing greater depth of information on that forest.
Others
would like to see a broader overview of eastern forests be
taken. They
would like to see efforts being spent documenting new olds
growth and
big tree sites, rather than detailed work on a particular woods.
Others
would like to see a wider variety and number of trees at each
location
measured. Some are interested in one particular type of data,
others are
trained to take other types of data. I see ENTS as an umbrella
organization where the results of these diverse efforts can be
shared.
Some people on the list also are excellent at integrating
information
from these separate sources. There is no reason why we can not
continue
to collect more information on a broad scale while some work to
provide
more detail on areas like MTSF.
I am interested in the MTSF research. I have encouraged Bob to
submit a
copy of a report he has already finished on the area for
inclusion on
the website. I am also interested in Cook's Forest, GSMNP, and
all of
the other areas encompassed by the groups effort. Personally I
do not
believe I would have become involved with the organization if
the focus
of the group was making a more detailed analysis of MTSF. The
more
focused the topic, the fewer people have an interest in working
on it.
ENTS needs to maintain broad-goals. Individual efforts within
that
canopy, such as the detailed work being done at MTSF can be held
up as
a shinning example of what can be done. On the other hand, the
broader
efforts are needed to provide perspective on what is being found
at
MTSF. Say you have 60 pines over 150 feet... What does that
mean? How
does that compare to other localities? Is it something common or
unusual? Is it worth mentioning? The broad-based background is
important to develop a complete picture as much so, if not more
than a
detailed view of a particular site.
For a discussion of the meaning of The Rucker Index and how it
is
calculated, what multiple iterations mean, what is a combined Rucker
index, etc. I would refer you to the website under the measurement
section. Read the discussions to better understand what is being
discussed in the discussion list. Some things, like the Rucker
index
for a particular species, that Bob referred to in his post, is a
new idea
that has not been discussed yet and is still being played with.
Essentially it is the average of the tallest 10 specimens of
each
particular species in a study area. If there are enough of them
then
they can be used to calculate a multispecies Rucker index for
the site
by averaging the average heights of the average heights of the
top ten
species. The other comments referred to creating a Rucker index
including more than 10 species. Again these are ideas Bob is
beginning
to play with, and which I hadn't seen before a couple days ago.
But
check out the website and see what is there. I have tried to
include
every field trip and important discussion from the discussion
list since
its inception somewhere on the website.
Ed Frank
|
RE:
Rethinking the ENTS role |
dbhg-@comcast.net |
Apr
17, 2004 19:37 PDT |
Ed:
Good discussion of the multiple directions we
need to be going in. I think you've really caught the spirit of
ENTS. Certainly everybody should not be doing what we're doing
in Mohawk. Broad approaches integrated with highly concentrated,
site-specific areas will provide us with many worthy problems to
work on.
I should point out that the species-specific
Rucker index is actually Colby's idea. He presented it in a
private e-mail to me a few weeks back and I'm just now getting
around to experimenting with it. It will be a topic to deal with
for those of us meeting in MTSF tomorrow.
One reason we're saturation measuring Mohawk
is so that we'll eventually have enough data to back off and see
what general predictors work best to capture the detail and
allow us to predict averages and ranges. We're finally getting a
large enough database to do that.
When I update the detailed MTSF study, I'll
definitely send you a copy for posting. The current study is
already outdated. We are moving pretty fast now and we have the
full backing of Massachusetts DCR to do even more detailed
studies. More on that in a few days.
Bob
|
RE:
Rethinking the ENTS role |
Joseph
Zorzin |
Apr
18, 2004 03:18 PDT |
As the "Madman" forester here, who has little to
contribute to the
description of old growth or specimen trees- I will, aside from
the
occasional anti forestry establishment rant, be looking to see
what the
relevance of ENTS research has to the other 99.9999999% of the
forests,
much or most of which is grossly abused or ignored.
I can see that such research indicates just how big trees can
get.
That's interesting- but I'm not so sure that 99.9999999% of the
forestry
"community" cares about how big they can get- it's
more concerned with
short term profits and the continued flow of tax dollars into
bureaucracies. I can't recall ever, having attended hundreds of
forestry
meetings, anyone showing the slightest interest in big trees.
Big trees surely are fascinating- but it's kinda like the sports
freaks
who love to watch some superman on the football field doing his
thing-
while ignoring the other "grunts" who the superman
needs to show his
stuff. It's the love of the superlative, the exception to the
rule. It's
a rather narrow subject. It's an important one, but we need to
get a
grip on why it's important. Will foresters show any interest
other than
"oh, nice tree, cool, but so what?".
As a forester, I would like to know things like:
- just how big can trees grow on a certain site?
- now that I know how big they can grow, how long will it take?
- now that I know how long it will take, at what point is the
tree
financially mature, assuming of course it's not on
"protected land"?
- once I know when the tree will be financially mature, are
there
reasons to not cut it?
- in my ideal multi species uneven aged forest (Daurwald), what
relevance is "big tree info" to me- since I don't want
to grow a stand
to super size, then clearcut it and start over again- I want
trees of
all sizes and species
- if a site is known to grow super white pines, how well will it
do
growing other species?
- what sort of index can be designed to measure the overall
health of an
entire stand, which may contain many species and many age
classes?
I could ask another 100 such questions, but I have to head out
for a
day's work.
The Madman
|
RE:
Rethinking the ENTS role |
dbhg-@comcast.net |
Apr
19, 2004 04:25 PDT |
Joe:
Many of the posts Lee Frelich, Colby Rucker,
Will Blozan, and I have made speak to just the questions you
ask. If you review a sample of the posts we've made that list
tree measurements, you'll realize that many of the trees are not
large, just tall. They have high height to diameter ratios and
though age data are not included, they are fairly young. We are
looking to develop all kinds of site profiles to address the
question of both growth realized and growth potential over time.
The question of how long certain species maintain satisfactory
economic growth on certain sites has intrigued me for a number
of years. One reason the question stays uppermost in my mind is
that I see much evidence that the foresters have not satisfactorily
answered this question for the good growing sites
in western Massachusetts and many are therefore inclined to cut
trees as soon as they perceive diameter growth is slowing
significantly. In the case of a good dozen foresters with whom
I've walked the woods, I don't think this is the case, I know it
is.
We're getting ready to put in about a dozen
plots in MTSF to monitor growth rates and absolute volume
accumulation as functions of species, and a large array of site
variables over time. Susan Benoit and I briefed Jim Damaio last
Wednesday and he gave us the full go ahead. We were looking at
the first location yesterday. My hope is to get the Forest
Stewards Guild involved with us to help us design the plots and
provide input on the data to gather.
Bob
|
RE:
Rethinking the ENTS role |
Lee
E. Frelich |
Apr
19, 2004 06:14 PDT |
Bob:
I agree with you. All of Joe's questions listed below can be
answered by
obtaining data from remnant old growth stands. That is exactly
what I have
done in the upper Midwest, which is why so many foresters are at
my door
with questions all the time.
Lee
|
RE:
Rethinking the ENTS role |
Robert
Leverett |
Apr
19, 2004 06:30 PDT |
Joe:
A few more thoughts on the growth monitoring experiments at
MTSF. What
we're looking to do is to establish baseline data for natural
regeneration on a selection of sites that we believe support
unusually
high growth rates. Yesterday, we measured a white ash on Totem
Brook
that was no more than 70 years old (65 would have been a minimum
age).
It was 119.3 feet tall by my calculations and had a breast high
diameter
of 23 inches. Its point of major branching was at 80.5 feet
above its
base. What would this tree have achieved at say 50 years of age?
What
might it achieve in 100 years? How well is it doing for the
location,
i.e. what do we think the maximum site potential is for ash?
After leaving the Totem Brook site, Howard Stoner and I went to
the
Elders Grove and took a start of growing season set of
measurements for
the huge Saheda Pine. We got a number of different results from
various
locations that establish a minimum height for the tree of 162
feet and a
maximum of 164. Most of our measurements were at the high side
of this
range. I settled on a measurement that gave us 163.6 feet and
while I
believe this height to be a little on the high side, by June, it
will be
less so. Incidentally, this tree was measured in 1994 at 160.1
feet via
transit. Will Blozan climbed it in 1998 and we taped one of its
growth
sprigs to 158.3 feet as a conservative measure based on where
the plumb
line touched the ground relative to the root mass. That measure
could
have easily been 158.6 or 158.7 feet, if not more. Assuming Will
got the
highest leader of the many he had to choose from, then the most
probable
height for the tree is about 162.5 feet. If we assume there was
a leader
at 159.3 and the tree is now 162.5 feet, then the average annual
growth
rate would be 7.7 inches per year. Given what has been occurring
for
other trees, this is not unreasonable, though it still seems
slightly
high.
If we go back to the 1994 measurement of
160.1 feet and allow for
Howard's 164.2 feet as the best measurement, we get an average
growth of
5.5 inches per year, which seems more likely for the Saheda
Pine. So
what is its height? We're going to have to do a lot more
measuring to
include possibly use of a transit again. Saheda is giving us a
real
challenge and we've got a very narrow window of time to get good
measurements. For me, that's next weekend's challenge.
Saheda is 43.2 inches in diameter
at breast height. It is arrow
straight - one spectacular pine. People who visit Saheda fall in
love
with that great tree. What would most rank and file wood
products
industry people see in the tree? Boxes, flooring, lawn
furniture,
toothpicks, paper? I'd hope not, but fear that might be the
case. Where
do most foresters fit into the picture? Well, certainly some
would see
the above, but by no means all. I'm pleased to say that the ones
I've
taken there have approached this great tree with reverence.
What did Saheda look like at ages
50, 100, 150,and now at
approaching 175? Enquiring ENTS minds want to know. After we
gather data
on the youngest of the Mohawk pines and all ages up to the
Saheda, we
may be able to say. That's where we are headed.
Bob
|
RE:
Rethinking the ENTS role |
Robert
Leverett |
Apr
19, 2004 07:18 PDT |
Lee:
In the case of MTSF, in addition to the old
growth, we are fortunate
to have second growth stands from very young to very mature
available
for us to study and none of the areas have received the periodic
massacring that private lands so commonly have to endure.
Several of the
Mohawk stands of interest have gotten a kind of second wind and
are
growing rapidly both radially and vertically. I'm unsure of
whether this
is climate-induced or part of a natural pattern. The rapid
radial growth
of the northern red oaks in the Shunpike area of Clark Ridge
that Neil
Pederson verified is an example of this second wind. The oaks
are
growing radially now faster than they were at half their age.
They are
presently between 100 and 130 years old.
It is pretty obvious to me that there is lots
left for us to learn in
western Mass about the growth patterns of our trees over a span
of fully
150 years. The local notion that most species of trees are
pretty well
done by the time they reach diameters of 12 to 16 inches strikes
me as
at the least strange given what I routinely see.
Trees may not maintain acceptable economic
growth for 200 years, but
the idea that they're ready for plucking at between 40 and 60
years just
doesn't jive with what I see in the high growth areas of a good
three
dozen sites in central and western MA. I have to conclude that
many, if
not most, foresters work with highly degraded forestscapes and
just
haven't come to fully realize it. Well, that IS what all the
high
grading discussions point toward.
If we can make a contribution toward opening
eyes, I for one, believe
that the great land stewards of the past will smile down on us.
BTW, what are common misconceptions that you
encounter from wood
producers about forest growth? Would you bed willing to share
some of
the common misconceptions and comment on how widespread they
are?
Bob
|
RE:
Rethinking the ENTS role |
Robert
Leverett |
Apr
19, 2004 08:21 PDT |
ENTS:
One final e-mail on this subject. It might seem to the
infrequent
reader of the ENTS posts that the preoccupation of the handful
of
frequent posters is pursuit of big or tall trees for aesthetics
or
sport. That is truly an enjoyment for us, but far from our
primary
mission. Lee Frelich, Ed Frank, Colby Rucker and others stress
the
importance of the science we pursue and they are absolutely
correct in
their focus. Our objective is to understand the limits of
natural
regeneration in producing forests over time as a baseline
against which
ecologically sensitive management practices can be developed and
evaluated. Concurrently, there is the historical documentation
mission
for important big tree sites which involves public education.
The indices we have experimenting with are the
tip of the iceberg.
They serve to draw our attention to specific sites as unusual,
but the
height indices we've been reporting are far from sufficient. Lee
Frelich
is the actual architect of the full measurement protocols we'll
be
using. In terms of the ENTS work to be done, we're just now at
the front
door.
Those of us promoting site preservation and a
range of values will
keep up the public drum beat over the big/tall trees, but the real
scientific work will be going on behind the scenes.
Bob |
Re:
RE: Rethinking the ENTS role] |
Joe
Zorzin |
Apr
21, 2004 13:09 PDT |
-----
Original Message -----
From: Robert Leverett <dbhg-@comcast.net>;
Sent: Mon, 19 Apr 2004 13:30:38 +0000
To: ENTST-@topica.com
Subject: RE: Rethinking the ENTS role
<<A few more thoughts on the growth
monitoring experiments at MTSF. What
we're looking to do is to establish baseline data for natural
regeneration on a selection of sites that we believe support
unusually
high growth rates.--Bob>>
As I pointed out in my previous response to this thread, this
sort of research has been done- which is not to say that it
can't be improved upon- especially by factoring in ecosystem
values- which would show the tremendous benefits to society and
the planet by doing GREAT forestry, not the slaughter that goes
out there and which passes for forestry by our worthless
forestry establishments.
<<Yesterday, we measured a white ash on Totem
Brook
that was no more than 70 years old (65 would have been a minimum
age).
It was 119.3 feet tall by my calculations and had a breast high
diameter
of 23 inches. Its point of major branching was at 80.5 feet
above its
base. What would this tree have achieved at say 50 years of age?
What
might it achieve in 100 years? How well is it doing for the
location,
i.e. what do we think the maximum site potential is for ash?-Bob>>
The answers can be found by looking at existing "stocking
charts"- they do exist-such charts often show the potential
over a series of site indexes- a "family of curves".
<< The Saheda [Pine in the Elder's Grove] is 43.2 inches
in diameter at breast height. It is arrow
straight - one spectacular pine. People who visit Saheda fall in
love
with that great tree. What would most rank and file wood
products
industry people see in the tree? Boxes, flooring, lawn
furniture,
toothpicks, paper? I'd hope not, but fear that might be the
case.- Bob>>
Actually, having done "timber showings" several score
times- I know what many would say, "ayup, it probably has
red rot". Actually, many species start to lose value once
they reach a certain size due to predictable decline in quality.
Many very large pine have red rot- most very large hemlock have
"shake". Many large hard maple and cherry have
defects. Although loggers and mills like big trees, they
actually prefer the low end of the large size for this reason.
Oak however usually doesn't lose quality with large size. Much
of this problem with defect in large trees could be avoided if
actual silviculture was practiced, such that the very best were
left to large size- trees deemed by the "professional
forester" to be free of such defect.
Certainly it's understandable that people who earn a living in
the "wood products" business will view trees as RAW
MATERIAL, not as a long term investment of wealth. What's not
acceptable in an ethical world is that the forestry
establishment offers far more support to those with the short
term desires to meet the short term needs of industry-
defending, condoning, and approving of the worst high grading
and clearcutting, as exemplified by what happened on the street
where I live- the establishment made light of it- the new Chief
said I was being "emotional". Let's see, I'm emotional
for objecting to horrendous practices. If a medical doctor
complained about horrific bad medical practices, would he be
accused of being emotional?
<<Where
do most foresters fit into the picture? -Bob>
There's a full range- because nobody is pure angelic or purely
devilish, not even me. <G> I get tempted too- if I'm
marking a nice stand, and I see a "borderline tree"
which is one close to maturity- and if I'm broke, I may try to
convince myself to mark it and make the buck. I usually fight
off Satin at such times. <G>
Hey, let me give you an example. I'm now recruising a property
in Stockbridge, one of my biggest clients, who owns the entire
north side Monument Mountain. One of the first stands I walked
into I said to my helper, "wow, check out this maple stand,
hardly looks like any cutting has taken place here- most trees
are in the 16-24 size class." Most trees in the stand are
of very good quality. I had to think about it before I realized
that I did a timber sale in here only about 10 years ago. Now,
the stand is stocked with mostly veneer quality hard maple.
Further along, there is a section where I was going to mark- but
didn't as I had a bad case of sciatica- instead of marking it I
gave instructions to the logger on how to cut the stand- the
owner wanted that section done too- the logger is one of the
best- but he ended up cutting it much harder. At least he cut
most of the culls and low value species too- but now the basal
area is below the C level and the average tree size is
10-12"- AND HE'S ONE OF THE BEST LOGGERS. To him, it made
perfect sense.
Joe |
Re:
RE: Rethinking the ENTS role] |
Joe
Zorzin |
Apr
21, 2004 13:09 PDT |
-----
Original Message -----
From: Robert Leverett <dbhg-@comcast.net>;
Sent: Mon, 19 Apr 2004 15:21:54 +0000
To: ENTST-@topica.com
<< One final e-mail on this subject. It
might seem to the infrequent
reader of the ENTS posts that the preoccupation of the handful
of
frequent posters is pursuit of big or tall trees for aesthetics
or
sport. That is truly an enjoyment for us, but far from our
primary
mission. Lee Frelich, Ed Frank, Colby Rucker and others stress
the
importance of the science we pursue and they are absolutely
correct in
their focus. Our objective is to understand the limits of
natural
regeneration in producing forests over time as a baseline
against which
ecologically sensitive management practices can be developed and
evaluated. -Bob>>
That is important- a contribution for sure, but even more
important is the research done by carrying out different types
of silvicultural work, while also doing the hard economic study-
however, as I've said several times in this thread, much of this
has been done- the problem of bad forestry isn't a science/info
problem- it's an ethical problem. That's why the establishment
doesn't want to discuss ethics- it pretends that the problems
are educational in nature- which is nuts, nuts, nuts.
<<Concurrently, there is the historical
documentation mission
for important big tree sites which involves public education.
-Bob>>
The study of big trees is important because big trees are very
groovy- the reasons they are groovy have little to do with
mainstream forestry- they are groovy on ecological grounds-
regardless of the economics- they have more to do with
"ecosystem values"- but now the important thing to do
is to turn ecosystem values into a real economics- something
other than the economics of logs- that is, a giant tree, even if
it's losing it's log values, is contributing other tremendous
economic values to our society and planet- these values MUST BE
COUNTED- this is something wholly different than ordinary
forestry economics, which is too shallow to tackle that problem.
These other values must be recognized- then you can say to
public or private forest owners/managers- that the reason they
should cut a certain tree or stand is that those ecosystem
values are substantial- more substantial than the value of the
logs.
However, if those ecosystem values are recognized only in theory
and not in practice by all of society, then those values will be
lost- the society at large MUST recognize those values in
tangible ways. I believe Karl Davies once suggested that forest
owners should get tax breaks, not just on their real estate
taxes but also on their income taxes to account for such value
production. I'm sure many other ways can be thought up to reward
forest owners for those currently intangible ecosystem values-
that and only that will get results from many forest owners. As
it is now, just plain traditional forestry economics already
justifies great forestry- if we add ecosystem values, the
quality of forestry practices will go up a quantum level- and
those who carry out such great practices will have to be
rewarded too- so that the situation will be unlike now, where
doing great forestry often hurts those doing the best work-
leaving those great trees in the woods as a long term investment
hurts the forester too- unless you stick around long enough to
benefit from that investment- a stick-to-it-ness that takes a
great deal of stubbornness and determination.
<<The indices we have experimenting
with are the tip of the iceberg.
They serve to draw our attention to specific sites as unusual,
but the
height indices we've been reporting are far from sufficient. Lee
Frelich
is the actual architect of the full measurement protocols we'll
be
using. In terms of the ENTS work to be done, we're just now at
the front
door.
Those of us promoting site
preservation and a range of values will
keep up the public drum beat over the big/tall trees, but the real
scientific work will be going on behind the scenes. -Bob>>
|
Re:
RE: Rethinking the ENTS role] |
Joe
Zorzin |
Apr
21, 2004 13:10 PDT |
I've
been busy cranking out mgt. plans- but now I'll get a chance to
comment on this thread.
----- Original Message -----
From: dbhg-@comcast.net
Sent: Mon, 19 Apr 2004 11:25:19 +0000
To: ENTST-@topica.com
Subject: RE: Rethinking the ENTS role
<<Many of the posts Lee Frelich,
Colby Rucker, Will Blozan, and I have
made speak to just the questions you ask. If you review a sample
of the
posts we've made that list tree measurements, you'll realize
that many
of the trees are not large, just tall. They have high height to
diameter
ratios and though age data are not included, they are fairly
young. We
are looking to develop all kinds of site profiles to address the
question of both growth realized and growth potential over time.
The
question of how long certain species maintain satisfactory
economic
growth on certain sites has intrigued me for a number of years.-
Bob>>
There has been quite a bit of research like this done already-
Karl Davies was more on top of it than me- I have a large file
folder filled with copies of research reports he sent me. He
studied much of this research and concluded which was the best-
which I think is what he sent me.
<<One
reason the question stays uppermost in my mind is that I see
much
evidence that the foresters have not satisfactorily answered
this
question for the good growing sites in western Massachusetts and
many
are therefore inclined to cut trees as soon as they perceive
diameter
growth is slowing significantly.- Bob>>
Well, I've said it before and I'll say it again- many simply
have zero interest in growth- they are interested in what's
there now- it's NOT a question of science- it's a question of
ethics and professionalism. The are not in the business of
growing trees, they're in the business of selling logs. However,
of course, the establishment wants to frame the problems as
science problems- I think it's a huge mistake to fall into that
trap- then we end up discussing research reports for next
hundred years. That's a diversion- the research that already
proves how defective the current wave of timber harvesting is-
has been done. What would be far more productive would be if the
enviros tackle the true political side of the problem- which of
course is more difficult. Like I said, much harvesting is
utterly unconcerned with the potential growth- so if you
eventually come out with some dissertation showing that better
silviculture, and longer rotations is highly intelligent for
multiple reasons, those same bad characters will laugh when they
hear about it. Take my word for it. I've been in the trenches on
this for 30 years.
<<In the case of a good dozen foresters
with whom
I've walked the woods, I don't think this is the case,
I know
it is.-Bob>>
Listen, they really know better. When I studied silviculture and
forestry economics back in the age of Woodstock, I read research
that discussed great silviculture, that gave the financially
maturity for various species, based on site index, quality of
stems, going interest rates, etc. This is ancient history and
ancient knowledge and taught to most foresters- at least it used
to be until the education went into a decline in recent years-
such that, I believe, U.Mass. doesn't even offer a forestry
economics course- which means that they need to offer it again,
not that we desperately need new research.
It's all about what sort of filters you have over your eyes when
you look at a forest- if the filter is seeking to distinguish
"which trees can I mark/sell/cut right now and make a buck
on"- then that's what you'll do- if you put on the filter
that distinguishes trees which are truly financially mature and
can be spared from the forest in order to not reduce the
biodiversity and/or wildlife and/or aesthetic values- then
that's what you do. The choice is theirs- it's NOT about
science, it's about ETHICS.
If they actually do not know any better, than that's proof of
the poor quality of forestry schools, at least around here. But,
I suspect, quality nationwide is rather poor, as I see very poor
policies by the SAF. It's also proof of the failure of the
license law, which has licensed people who don't know these
BASICS.
<<We're getting ready to put in
about a dozen plots in MTSF to monitor
growth rates and absolute volume accumulation as functions of
species,
and a large array of site variables over time.-Bob>>
The most critical item to be determined, around which decisions
ought to be made, given that other concerns will be factored in,
is the rate of growth of value- such that the timber resource
can be seen as any other financial investment. This vision is
what Karl harped on for years and he dug up much of the best
existing research. Such a hard core financial investment point
of view, contrary to those who'd fear such a perspective would
lead to clearcutting and high-grading, actually shows the need
to do great silviculture, leaving the best trees to large size.
So, it's not just that a tree is healthy and growing but how
fast is value accumulating on existing value?
Way back in that Age of Woodstock, the textbooks told us that
good specimens of white pine and the "good hardwoods"
like cherry, hard maple, ash and others- ought to be allowed to
grow well into the 20" dbh class. It often turns out that
maturity from that point of view is still way earlier than
biologically maturity- so therefore it seems to be a bad
conclusion, but if everyone actually did this- the forests would
be far better- healthier, more diverse and worth far more.
On public forest land, since the "alternative rate of
return" of government is so much lower than the private
sector, that justifies the public forests being managed even
more conservatively- that is the forest that is actually managed
at all- and of course, much public forest should be left alone
in perpetuity for all those other values that only government is
big enough to acknowledge, all those ecosystem values.
... material deleted...
IT'S NOT ABOUT SCIENCE, IT'S ABOUT ETHICS.
<<We
were looking at the first location yesterday. My hope is to get
the
Forest Stewards Guild involved with us to help us design the
plots and
provide input on the data to gather.- Bob>>
Despite what I said above, some further research will be useful,
only I don't want a push for reform to wait until it's done- we
already have enough info to send in the marines. <G> I
have proof of their "weapons of mass destruction" -
all I have to do is look out the window to the state approved
massacre, one which is certified under Smartwood!
Joe
|
Re:
RE: Rethinking the ENTS role] |
Joe
Zorzin |
Apr
21, 2004 13:10 PDT |
-----
Original Message -----
From: Robert Leverett <dbhg-@comcast.net>;
Sent: Mon, 19 Apr 2004 14:18:12 +0000
To: ENTST-@topica.com
<<Lee: In the case of MTSF, in addition
to the old growth, we are fortunate
to have second growth stands from very young to very mature
available
for us to study and none of the areas have received the periodic
massacring that private lands so commonly have to endure.
Several of the
Mohawk stands of interest have gotten a kind of second wind and
are
growing rapidly both radially and vertically. I'm unsure of
whether this
is climate-induced or part of a natural pattern. The rapid
radial growth
of the northern red oaks in the Shunpike area of Clark Ridge
that Neil
Pederson verified is an example of this second wind. The oaks
are
growing radially now faster than they were at half their age.
They are
presently between 100 and 130 years old. -Bob>>
That's because the stand was very dense when young- but oaks
tend to knock out their neighbors and thus lower competition for
light and the soil- once they've done that, they're off and
running.
Of course, doing a thinning in any forest will accomplish much
the same- most stands are growing about a third as fast as
they'd grow if kept thinned down to the "B" level of
stocking- by periodic light harvests, such that the stand
develops into an uneven aged type- and is KEPT THAT WAY.
<<It is pretty obvious to me that
there is lots left for us to learn in
western Mass about the growth patterns of our trees over a span
of fully
150 years. The local notion that most species of trees are
pretty well
done by the time they reach diameters of 12 to 16 inches strikes
me as
at the least strange given what I routinely see.- Bob>>
Many species of trees are indeed mature in that size range-
including white birch and poplar. They do mature quickly then
start to die off and/or develop serious defect. Many individual specimens, by the billions, are financially mature far earlier
than they should- because they are poor quality specimens for any
number of reasons- past logging damage, disease, forks and other
reasons. The fact that so much logging is 12 or 14"
diameter limit harvesting is NOT due to the idea that the
perpetrator actually believes that this is good forestry- they
may say so, but if you push them, they back down- then they fall
back on the "the owner made me do it" theme. I doubt
any forester would actually claim that cutting premium quality
oak, hard maple, cherry, pine and others at 12-16" is
really the right thing to do- it's the PROFITABLE thing to do,
especially after you convince the owner that it's OK, by the
method which Karl Davies called "the 3-5% scam"- a
subject you all can read about on his web site which is still
up.
<<Trees may not maintain acceptable
economic growth for 200 years, but
the idea that they're ready for plucking at between 40 and 60
years just
doesn't jive with what I see in the high growth areas of a good
three
dozen sites in central and western MA.- Bob>>
Well, maybe, maybe not. There is a definite distinction to be
made between biological maturity and financial maturity and
pathological maturity. Financial maturity is simply the rate at
which the tree is producing value as a function of its existing
value- and that's usually far earlier than biological maturity.
If a 200 year old pine stand is producing 500 board feet per
acre per year and the stand has 35,000 bd. ft. then it's rate of
value growth is only 1.4% (assuming that each board foot of pine
has equal value). The idea being that you don't manage the
individual tree, you manage stands. If a stand has 10,000 bd.
feet and is growing at 500 board feet per year, then it's
growing at 5%- a not bad rate of growth by today's standards,
but if you thin the stand and keep the individual trees with the
highest growth, as they're all growing differently, then you can
raise that rate of return substantially. To do that, it may mean
taking out some small, some medium and some large trees- that's
what real silviculture is all about- it's NOT about diameter
limit cutting- which is just plain stupid.
Based on what I've said above, some trees should be harvested at
very young ages, some at very old ages- so it's not one or the
other- that's very important- if proper financial considerations
are made. Some consideration will produce uneven aged, multi
species forests, at least here in the northeast.
<<I have to conclude that many, if
not most, foresters work
with highly degraded forestscapes and
just
haven't come to
fully realize it. -Bob>>
There not so dumb- they know what's going on- they know that
they're not practicing real forestry when they purposefully high
grade. It's NOT a lack of knowledge, it's a lack of ethics. Many
know that the forests are degraded because they made it that
way! Hey, Mike Leonard came out of the closet on this- he admits
to once having been a high grading timber beast- then he heard
the voice of God tell him, "thou shall not high grade any
more, dude" and he reformed himself. But when he was a bad
boy, he knew it- so when he saw the light, or heard the word,
whatever, he can now doing great forestry.
<<Well, that IS what all the high
grading discussions
point toward.- Bob>>
No, because your conclusion is that they don't know any better-
they do know better and the entire forestry establishment knows
better- it's not about science and knowledge, it's about
CORRUPTION AND GREED, with full support of the establishment
which gets well rewarded for their cooperation, by steady
paychecks, medical insurance, and outrageous pensions.
<<If we can make a contribution
toward opening eyes, I for one, believe
that the great land stewards of the past will smile down on us.
BTW, what are common
misconceptions that you encounter from wood
producers about forest growth? Would you bed willing to share
some of
the common misconceptions and comment on how widespread they
are? -Bob>>
================================
<<Lee E. Frelich wrote:
That is exactly what I have
done in the upper Midwest, which is why so many foresters
are at my door with questions all the time. >>
Maybe many are- but what about the majority who are out there
high grading to beat the band? The bad boys aren't stupid, they
are unethical- so all the research in the world isn't going to
fix the problem, what will fix the problem is when the forestry
academics, forestry bureaucracies, forestry professional groups
and enviros all decide they won't tolerate any longer the bad
guys. Stop fooling yourselves into believing that further great
research is going to solve the problem - IT WON'T, TRUST ME.
|
Re:
Re: Rethinking the ENTS role] |
Joe
Zorzin |
Apr
21, 2004 13:26 PDT |
Other sure indicators are an abundance of sugar maple
reproduction, in all stages from seedling to saplings to small
"sawlog" size. Such stands are the classic for all
uneven aged mgt. since the best species on the site, sugar
maple, can succeed itself with little effort- so it's easy to
develop an all aged stand. Of course when fine specimens of
other species are found, they should be grown to large size too-
so it won't turn into a monoculture.
One other indicator I notice even if the stand has received a
state approved mutilation, is that very black, damp, rich top
soil. Such stands often have lots of springs and streams and
they are often difficult to "log" without erosion,
compared to dry oak sites. They usually need to be
"operated" under frozen ground conditions only.
Such sites are most common, in the Berkshires, on limestone
bedrock.
Z
------ Start of Forwarded Message ------
From: dbhg-@comcast.net
Sent: Tue, 20 Apr 2004 10:59:09 +0000
To: ENTST-@topica.com
Subject: Re: Rethinking the ENTS role
Russ:
The areas dominated by sugar maple
and white ash and a generous
sprinkling of basswood on Clark have most of the rich woods
indicator
species for the area. There is abundant squirrel corn, Dutchman's
breeches, blue cohosh, wild ginger, dwarf ginseng, foam flower,
bane
berry, and maidenhair fern. There is some American ginseng.
There are 12
or 13 species of ferns.
Bob
|
Re:
RE: Rethinking the ENTS role] |
dbhg-@comcast.net |
Apr
22, 2004 04:21 PDT |
Joe:
I've asked a good dozen foresters if they can
point me to the kind of research that we're planning to do at
MTSF and so far none has cited any research that is specific
enough. Nor have any of them shed any light on what they think
the stands that interest us are presently doing or are capable
of doing except maybe for some broad board feet projections.
We're interested in developing growth models that tell us what
individual trees were probably doing 50 years ago, are doing
now, and what we can expect from them over a span of perhaps 200
years if left to grow on their own. We're interested in rates of
accumulation of biological mass and growth curves for specific
tree dimensions.
We intend to do our research across a wide
geographical range of sites. We don't want to mix trees from
Central Pennsylvania with trees from Michigan with trees from
North Carolina with trees from western Massachusetts to arrive
at some impossibly broad averages. We want to investigate how
these places differ from one another so that we eventually can
profile about a dozen species - to our satisfaction.
The kind of growth models we plan to develop
and the kind of highly site specific information that interests
us may not prove that useful to silviculturists, however, don't
bet on it. The forestry world isn't beating a path to Lee
Frelich's door for nothing. He tells them about how natural
processes progress and what stands do on their own beyond
projections of board feet. He tells them things they don't know.
They couldn't pull the information out of existing sources and
many along the way have made egregious assumptions about what
Mother Nature was doing or is capable of doing.
Bob |
RE:
RE: Rethinking the ENTS role] |
Robert
Leverett |
Apr
22, 2004 10:12 PDT |
Joe:
A few additional comments on what we seek to
determine with the
research that we're proposing. What are the individual trees in
our
plots doing? What independent variables do we need to identify
and track
to explain the tree growth that we measure? We will develop
complex
multivariate regression models to explain the growth we measure
at each
study site. Lee Frelich will handle the heavy analysis.
Has this kind of modeling already been done?
Well, if it has, nobody
has been able to direct me to the sources. I'm quite open to
considering
any relevant research. I was given some volume models from SUNY
about 6
years ago (USDA FS research), but the charts didn't extend far
enough to
cover trees like the Thoreau, Ice Glen, and Tecumseh Pines. They
had
other limitations and I was forced abandon trying to apply them.
I did try to apply volume models to some of
the Smoky Mountain
hemlocks that Will climbed. Again, the same problem. The models
didn't
pertain to trees of those sizes. So, we took circumferential
measurements at intervals of a yard and developed our own volume
models.
Because of whole tree chipping that is so prevalent
now, there may be
models that have been developed that can be broadly applied.
However,
I'm weary of models that mix species across a wide range of
habitats and
geography. We learned the hard way from Karl Davie's research
that just
because a model carries a USDA stamp of approval on it doesn't
guarantee
much. Good research is jumbled with bad.
Bob
|
RE:
RE: Rethinking the ENTS role] |
Joseph
Zorzin |
Apr
23, 2004 05:27 PDT |
RE:
RE: Rethinking the ENTS role] |
Robert
Leverett |
Apr
23, 2004 08:41 PDT |
ENTS:
Well, I guess Joe told me. He's dropped off
the list again - went
into hiding. My response to him was going to be the following.
Guess he
won't see it. Too bad. It's presented below primarily for its
entertainment value.
=====================================
Joe:
Reference your comment”
“Burl-belly, you don't "get it". I've
tried to explain to you and others countless times, but you just
don't
get it”. Joe, Joe, pardon me, my friend, but I do get it. Have
for a
long, long time. Hell, I’d have to be a total moron, if I
didn’t, having
read your meticulous, colorful, highly repetitive internet
explanations
a few thousand times.
I have absolutely no
illusions about our research at Mohawk. Is it
somehow going to transform forestry ethics? Of course not. How
could it?
Why, on Earth, would we think our tiny little efforts carried
out in a
location completely obscure to 99.99% of the forestry world
could have
such an impact, especially when 99.97% have no interest in what
we’re
doing - at least by your accounting? We’re not proposing the
research
because we’re trying to reform forestry. We want to do the
research
because we want the answers to the questions we pose and we’re
not going
to get those answers by asking some wood producer with saw dust
in his
eyes, a Biltmore stick in his hand, and visions of board feet
dancing in
his head. Nor will the answers come from academics who
concentrate their
research in high tech, plantation forestry.
Now, should we be doing
something else with our time? Should we
abandon everything except trying to build coalitions with the
few
foresters with whom we share common ground? Possibly. Is that
the point
you make? If we aren’t totally focused on forest abuse,
primarily within
the private sector, then we’re wasting our time? Just playing?
In our minds,
should preservation be our only focus? Of course
not and it isn’t. It certainly isn’t mine and that’s why I
keep this
list open to forestry discussions as well as the primary work of
ENTS.
It is why I participated in NEFR and why I am promoting forest
practices
discussions within the HCC forum and at the scheduled conference
in New
Hampshire in September. But, heck Joe, I’m no more of a
miracle worker
than you are. I can only do what I can do and then the chips
(not wood)
must fall where they may. How successful have the internet rants
really
been? Really!
With respect to
your observation: “I sense that most would
rather do this research thing because it's infinitely easier
than
political fighting, especially since it's more polite- politics
is dirty
- and that's OK by them, because they have already abandoned the
vast
majority of forest to the timber beasts”, others will have to
speak for
themselves, but that certainly isn’t the case for me. On the
other-hand,
if those of us in the environmental community are serious about
reaching
out to different forestry groups to search for common ground
“ain’t
gonna happen” if we stay in perpetual attack mode. We’ll
have no more
success than you’ve had.
Having said that, it doesn’t follow that any of us in ENTS
should roll
over and play dead, nor have we. We in ENTS have helped draft
legislation (Susan Benoit), gone to numerous meetings (several
of us),
engaged in plenty of debates (several of us), delivered sermons
in the
forest (me), helped organize groups of like minded souls (me),
written
editorials and articles (several of us), signed petitions
(several of
us), lobbied congressional representatives (several of us), to
name a
few things. We’re NOT setting on our thumbs. Hey, we’ve even
ranted on
the internet, and that’s okay too.
Consider our MTSF projects as us doing pure research to answer
questions that are not answered elsewhere. If one day our work
finds
limited application in any of the applied sciences, then we will
be all
the more pleased, but that isn’t really why we’re doing the
research. I
think I’ve said enough.
Bob
|
|