Reforestation Problems on National Forests
Testimony by Kenneth Kane
Consulting Forester, Keith Horn Forestry, Inc.
representing the Society of American Foresters
Before the
House Resources Committee, Subcommittee on Forests and Forest Health
April 27, 2005
My name is Kenneth C. Kane. I am president of Keith Horn Forestry, Inc.,
Consulting Foresters, in Kane, PA. I have been practicing forestry full
time on the Allegheny Plateau since 1983. I am also a native of Kane,
Pennsylvania, a small community located at the eastern edge of the Allegheny
National Forest. It was growing up in the Allegheny Plateau Region that
motivated me to attend Penn State University and obtain my Bachelor of
Science degree from Penn State's School of Forest Resources.
I am here today representing the Society of American Foresters (SAF),
an organization of over 15,000 professional foresters in all segments
of the profession, from consultant foresters like myself, to academics,
scientific researchers, and federal, state, and local agency personnel.
SAF members believe it is our responsibility as professionals to ensure
the continued health and long-term sustainability of both public and privately
owned forest resources for current and future generations. Over the last
several decades, SAF has become increasingly concerned with the lack of
action in federal forests that is needed to maintain and improve these
forests and their associated resources. Foresters need to be able to apply
the proven practices of silviculture, which at times can include timely
human-induced reforestation, to ensure, over the long-run, that our forests
are healthy and the objectives set for these forests can be met. I will
include, for the record, SAF's position statement in this issue, titled
Use of Silviculture to Achieve and Maintain Forest Health on Public Lands.
It is difficult to meet the public's demands for these lands when foresters
are prevented or restricted from practicing our profession. As the General
Accountability Office Report outlines, reforestation has become a major
problem on National Forest System lands. The backlog of reforestation
can inhibit proper stewardship of our forests and can reduce the health
and long-term viability of these forests.
Many well intentioned people ask if we should simply allow forests to
regenerate on their own. In fact, most forests can regenerate successfully
without human influence. However, when society expects (and legally requires)
responsible stewardship of our forests and diverse values from these forests--
clean water and air, wildlife habitat, recreational opportunities, forest
products, and scenic beauty, it is sometimes necessary to intervene. Human-induced
or artificial reforestation is often needed to accelerate the growing
process and move more quickly towards meeting the demands society places
on forests. Human induced reforestation is also beneficial where there
is an abundance of invasive species, wildlife such as deer, a real problem
in northwest Pennsylvania, or other conditions, that would prohibit natural
regeneration of the desired forest. Additionally if there is a lack of
seed trees in the area, it may take years for natural regeneration to
take hold, putting the soil at risk of erosion and putting the area at
risk of invasive species.
Delayed or inadequate reforestation after catastrophic events, such as
wildfires, hurricanes, blow downs, and ice storms, is of particular concern.
In some cases it is extremely difficult to naturally reforest these areas
to the desired species and composition in a timely manner and intervention
is needed through forest management and reforestation practices. At times
foresters need to remove a proportion of dead and dying trees in a disturbance
area to provide access, remove safety hazards, or reduce the risk of insect
infestations or fire danger the dead and dying trees can create. This
kind of activity encourages forest regeneration.
I'd like to share a case example of the reforestation problem from the
eastern US, in the Allegheny Plateau. The example demonstrates the need
for timely reforestation in the Allegheny region, particularly after catastrophic
events, to achieve the objectives set out for these areas and restore
the desired species composition and forest structure. These problems are
certainly not exclusive to the eastern US-similar issues are prevalent
after wildfires in the west and south, blow-downs in the boundary waters,
hurricanes on the east coast and after many other disturbances.
Extensive timber harvesting in the Allegheny region in the early 1900's
coupled with a greatly reduced deer herd provided ideal conditions for
the establishment of a new forest of shade intolerant hardwoods such as
Black Cherry, White Ash, and Tulip Poplar, along with Red Oak and Maple.
At the turn of the last century, these lands were of little value to timber
companies and were sold to the federal government, forming the Allegheny
National Forest. The first timber sale was conducted on the little Arnot
watershed in 1927. I have attached to this testimony a pictorial sequence
of the development of the forest as it moved from an early successional
seedling to sapling stand, to a poletimber stand, to a light sawtimber
stand to eventually in seventy years, a mature Allegheny hardwood sawtimber
stand.
Unfortunately these beautiful forests do not stop changing once they
are mature. Mature Allegheny Hardwood forests are very susceptible to
wind throw as we experienced in 1985 with the series of tornadoes that
crossed the region and again in 2003 with a combination of tornadoes and
intense thunderstorms. The 2003 storm resulted in approximately 10,000
acres of downed trees.
These natural disturbances should create a scenario to regenerate the
forest without human intervention-- Natural seedlings and a seedbank from
the blow down trees, abundant light created from the disturbance, the
same moist rich soil, and natural protection from the blow down. However,
other influences on the landscape have greatly inhibited the capacity
of the forest to naturally regenerate on its own.
First and foremost, the whitetail deer population has exploded. The herd
that was estimated at only 400 animals in Pennsylvania in the early 20th
century is now estimated at 1.6 million. The deer through over-browsing,
have changed the species composition of the forest floor from diverse
wild flowers, shrubs, and seedling trees to hayscented fern, beech brush,
and striped maple, preventing the natural regeneration of desired species.
The beech brush, fern, and striped maple eliminate other species desired
for diversity and favorable stand structure.
Insects and diseases are also a factor precluding natural regeneration
of this forest type. Although American Beech is a late successional forest
species, an exotic disease known as the beech scale nectria-complex prevents
the tree from occupying the upper canopy of the forest and providing valuable
mast (food) for animals. The Hemlock wooly adelgid insect threatens the
native Hemlock in a similar manner. These and other invasive species often
preclude regeneration of desirable native species.
In order to overcome these hurdles and restore the forest to desirable
species composition and structure, foresters must be able to employ modern
science and professionally accepted techniques. In some areas, foresters
need to be able to salvage a portion of the down timber to gain access
to the forest or create conditions where shade intolerant species can
grow. In some cases, herbicides may need to be used to control undesirable
vegetation, invasive species, and promote species diversity. Deer exclosure
fences can also be constructed to protect diverse early successional forests
from deer and additional steps can be taken to work with wildlife agencies
to bring deer populations into balance with the habitat. Fertilizers can
also be used to enable regeneration to grow past the level of deer browse.
Action needs to be taken now to ensure the establishment and growth of
regeneration in disturbance areas in northwest Pennsylvania and in many
areas throughout the country. Forest policy, funding, and other factors
that preclude timely reforestation are evident in comparing the response
to the 1985 tornado and the 2003 blow down. After the 1985 event--covering
a much larger area than the 2003 event-- the Allegheny National Forest
completed over 80% of the salvage by 1987 and the area is now fully regenerated.
Here in 2005, nearly two years after the 2003 storm, less than 20% of
the affected area has been salvaged and even less has been reforested.
In contrast on private land and state land, the salvage is nearly complete
at over 80% salvaged. Once this material is removed, the area can be quickly
reforested to ensure the presence of desirable species. On the federal
lands, where this material is being removed at a much slower rate or not
at all, reforestation is slow and will most likely not produce desired
results.
The Allegheny Hardwood Forest type is a unique forest ecosystem. We need
to utilize the science available to us to regenerate the forest in a timely
manner and ensure the continuation of this unique ecosystem, before the
opportunity passes.
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| Picture #1 1926 after high-grade cut |
Picture #2
First timber sale on ANF 1928 regeneration |
Picture #3
1938 |
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Picture #4
1948 |
Picture #5
1958 |
Picture # 6
1968 |
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Picture #7
1978 |
Picture #8
1988 |
Picture #9
1998 |
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