Title: POSTFIRE LOGGING
1POSTFIRE LOGGING
Tuesday, April 3, 2007 Dan Stark James McIver
and Lynn Starr. 2001. A literature review on the
environmental effects of postfire logging. West.
J. Appl. For, 16 (4).
2What is Postfire Logging?
- Salvage logging primary objective of dead tree
harvest is economic - Postfire logging includes other objectives like
fuel reduction and erosion control makes no
assumptions about management objectives - (McIver and Starr, WJAF, 2001)
3SALVAGE LOGGING POLICY
- 1995 Emergency Timber Sale Program (Salvage
Rider) Mark Rey, approved by Clinton -
- - Temporarily exempted salvage timber sales on
federal forest lands from environmental and
wildlife laws, administrative appeals, and
judicial review (Wilderness Society Fact Sheet).
-
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4SALVAGE LOGGING POLICY
- 1995 Emergency Timber Sale Program (Salvage
Rider) Mark Rey, approved by Clinton -
- - Directed the Forest Service to cut old-growth
timber in the Pacific Northwest that the agency
had proposed for sale but had subsequently
withdrawn due to environmental concerns,
endangered species listings, and court rulings. -
- - Expired 1996
- Sound familiar?
5POLICY (cont.)
- Healthy Forests Restoration Act 2003, Bush
- - Many similarities, to be continued...
6FRAMING THE DEBATE
- Proponents mostly land managers, arguments based
on economic, ecological, and administrative
principles - Opponents harvest operations cause damage either
directly or indirectly
7(No Transcript)
8Environmental Effects
- Both positive and negative
- 2 types
- - activity effects
- due directly to logging activity
- - structural effects
- result of removal of merchantable material
9Activity Effects
- Must consider significant effects severe fire has
on soils and vegetation like...? - Depends on site characteristics like topography,
soils, revegetation patterns, and precipitation
patterns
10Activity Effects (cont.)
- Increase in sediment and water yields as a result
of increasing catchment area and slope - Roads can contribute to increased sediment
production - Increased sediment yields and soil disturbance
depends on logging system used (ground-based log
removal vs. aerial) - Logging residue can reduce soil loss (esp. after
needle fall) - Can reduce insect build-up and resulting
potential attack on adjacent green trees by
removing vulnerable trees
11Activity Effects (cont.)
- Outright killing of seedlings
- Most immediate effect on vegetation is removal of
large woody structure both dead and alive - Disturbed soil from logging can create beneficial
site for regeneration of certain species (native
and nonnative)
12Structural Effects
- Alter structure, alter habitat (insects and
wildlife) - - structural removal of snags, or down wood
- - functional removal of food source (like
beetles) - Generally, postfire logging can enhance habitat
for a particular species or diminish it for
another. Hey, how about a mosaic? - Reduction in intermediate-term fuel loadings? No
studies to support.
13DEBATE CONTINUES
- Donato controversy
- - data from Biscuit Fire 2002
- - Showed natural conifer regeneration much
higher in burned vs. burned and logged sites
(logging reduced regen. by 71) - - Both fine and coarse woody debris loads were
higher in logged areas vs. burned only - - Conclusion postfire logging can be
counterproductive to goals of forest
regeneration and fuel reduction. WOW!
14...and continues
- Aftermath
- - Oregon state professors tried to halt the
publication of article - - BLM cut-off final year of funding (restored
after a week due to pressures in Congress) - - character and ability questioned
- Bush administration and the Biscuit Fire loggers
should move in quickly, cut marketable trees...,
and replant a healthy forest (washingtonpost.com)
15FURTHER READING
- James McIver and Lynn Starr. 2001. A literature
review on the environmental effects of postfire
logging. West. J. Appl. For., 16 (4). - D.C. Donato et al. 2006. Post-wildfire logging
hinders regeneration and increases fore risk.
Science. V311. - D. B. Lindenmayer et al. 2004. Salvage harvesting
policies after natural disturbance. Science.
V303. - John Sessions et al. 2004. Hastening the return
of complex forests following fire. J. of For.
April/May. - In Fires Wake, Logging Debate Inflames Debate.
www.washingtonpost.com. Monday, Feb. 27, 2006.
16Why mitigate post fire effects?
Waterman Canyon, Oct 25, 2003 Old Fire 92,000
acres Two months later
Waterman Canyon has had a slide, in one form or
another, within a year of every fire since
1932 Other hill-slope scenarios very similar
throughout the western US
17- Most of southern California (and huge portions of
Bay Area flatlands) are built on alluvium from
surrounding hills - Large derived during post-fire storm events
Harrison Canyon Catchment Basin (1983) Spring
Creek Debris Flow (1999). Both San Bernardino
County, both are from USGS SCAMP director Doug
Morton.
18Source
- Robichaud, Beyers Neary, 2000. Evaluating the
Effectiveness of Postfire Rehabilitation
Techniques. RMRS-GTR-63 - Download from class webpage
19B.A.E.R.Burned Area Emergency Rehabilitation
- Formal Authority 1974
- Originally for
- 1) Threat Reduction
- 2) Soil Water Loss
- 3) Water Control
- 4) Water Quality
- Reassessed 1998
- Addition assessment for needs concerning
- Evaluation of run-off control
- Minimization of downstream post-fire effects
- Assess impacts on ecosystems ability to recovery
- Compare Hillslope v. Channel mitigation effects
- Assess economic, social and environmental costs
benefits (including no treatment) - Treatment Transfer How can one successful
treatment be employed elswhere - Identification of information gaps
20Process
- BAER initiates during Type 1 project fire events
- Requested by Type 1 Overhead
- Own authority
- On request by area-of-concern managers
- (usually Forest level)
- Team is in-place well before containment
control begins immediately on soil water
rehabilitation, usually during suppression
activities
21Staff
- Team Leader (just like a Type 1 Incident
Commander) - Disciplines
- Hydrology
- Soils
- Timber Management
- Wildlife
- Engineering
- Range Management
- Archaeology
- Fire Management
- Geology
22BAER
- A. Primary Objectives
- Health Human Safety
- Watershed Stabilization
- Both fire-effected area downstream
- Should address both alluvial colluvial mass
movement - B. Secondary Big question
- Is there any treatment that could be performed
that will significantly increase ecosystem
recovery?
23BAER
- Limited to rehab work and significant
improvement over natural recovery - For instance
- Cannot build new facilities with BAER (but you
can repair old ones) - Cannot alter long-term silvicultural goals (but
can provide for some seeding, if significant
improvement is indicated) - Cant set up tasked, event-specific research
24BAER
- GTR-63 provides
- Fire effects review
- How to acquire analyze data
- How to describe results of assessment
monitoring - Discusses BAER assessments treatment
effectiveness - Makes conclusions regarding BAER process
- Makes recommendations about BAER process
25HILLSLOPE TREATMENTS
First line of defense
- Broadcast seeding, including grasses
- Exotics cheap, fast growth
- Natives Expensive (20x to 50x), slow growth
- Most BAER treatments are shying away from
inexpensive seeding, but Private, County State
agencies (except CDF) not. - Mulching
- Contour trenching
- Contour felling
- Fencing contour check-dams
- Lopping scattering of slash
- Hay, straw wattles, Jute meshing, etc
26Channel Treatments
- Within any order stream
- Check dams
- Logs
- Hay Bales
- Rock Dams, Rock Cages, Weirs
- Tend to fill w/ debris
27Road Treatments
- Target increase the water and sediment
capabilities of roads road structures - Culverts
- Out-sloping
- Overflows
- Crossings
- Bridges
28QUESTIONS
- Briefly discuss the Fire Impacts that GTR-63 is
concerned with. - What are the three primary types of erosion
control treatment categories? - Why isnt broadcast seeding such a good idea
anymore, and what vegetation community is most
affected by this treatment? - Are no treatment costs more or less than
specific treatment alternatives? Why or why not?