|
Background
What are the Effects
of Forest Management on Fish and the Aquatic Environment at a Watershed
Scale?
Stream ecosystems are
complex with multiple linkages among system components and processes at a
watershed scale. While contemporary forest practice rules are designed to
minimize negative impacts, forest harvest may affect elements or linkages at
multiple points in watershed networks and these effects may then cascade
through the system. Effects of forest harvest on these types of processes
are best addressed at a watershed scale. The general objectives of the
Trask Study are to investigate:
- The effects of forest harvest
on the physical, chemical and biological characteristics of small headwater
streams,
- The extent to which
alterations in stream conditions caused by harvest along headwater channels
influences the physical, chemical and biological characteristics of
downstream fish-bearing streams.
Watershed Research
Cooperative
The Trask River
Watershed Study is part of a research cooperative including two other
watershed studies in Oregon- Hinkle Creek (Cascades) and Alsea Revisited
(Mid-Coast) (see map). The three studies complement each other by conducting research
using similar designs and methods, in different watersheds. This
collaboration of three watershed studies under one research cooperative
(Watersheds Research Cooperative) provides greater ecological context to
address forest management effectiveness questions. Several watershed
processes are being researched. The research is conducted at two scales-
within the immediate area of harvest treatments and at downstream locations
throughout the watershed. These are integrated multi-disciplinary studies
that will provide important information for adaptive management processes on
state, private, and federal forests. Multi-Disciplinary
Science
This research is being
lead by a multi-disciplinary science team comprised of scientists from
multiple research organizations. Private, state, and federal landowners,
and natural resource managers are participating in the planning and
implementation. Collaborators
The Trask River
Watershed Study is part of the Watersheds Research Cooperative (WRC)
including two other watershed studies in Oregon- Hinkle Creek (Cascades) and
Alsea Revisited (Mid-Coast). Each watershed study has a Science Team, which
is composed of an interdisciplinary, multi-organizational group of
scientists with expertise in key areas. Each team is coordinated and
directed by a science lead or co-lead. Integration among studies within the
WRC is both formal and informal; frequent informal interactions and sharing
of results occur in many venues and as a result of overlap of individuals
among teams and during local, regional and national scientific meetings and
field tours. Formal interaction and coordination occurs among science leads
during annual reviews.
Collaboration
Landowners have altered harvest schedules
and management plans on their property within the study areas to conform to
experimental designs. In addition, these watershed studies are long term
projects and annual financial support has been committed by landowners and
others including: - Trask - Oregon Department of Forestry, Weyerhaeuser Company - Hinkle - Roseburg Forest Products, WRC - Alsea -National Council for Air and Stream Improvement, Plum Creek
Timber Company.
Each watershed study has coordinated its research with related efforts that
are occurring in the region. Watershed scientists outside of the WRC studies
are frequently consulted for input on study plans or to coordinate field
visits to comparable projects. The WRC studies also communicate regularly
with groups outside of the traditional scientific community. Frequent
interactions occur with community groups, forest industry representatives
and state and federal agencies. Support from communities (Douglas and
Tillamook Counties), NGOs (Watershed councils, Oregon Trout, Tillamook
Estuary Partnership), agencies (OFIC, ODEQ, ODFW) and participating land
owners (Weyerhaeuser Company, Roseburg Forest Products, Plum Creek Timber
Company, ODF, BLM) are an indication of the extent of this interaction.
Data Management
A major obligation for each study within
WRC is providing data and metadata to networked databases, so that others
can use data in years to come. The Trask and Hinkle science teams have data
space through the OSU Forestry Computing Network and the Alsea through NCASI
computer networks. Web sites of the WRC, NCASI and ODF are being used to
post study plans, processed data and metadata, participant activities and
summaries of findings.
|