Boaz Forest Health and Small-Diameter Utilization Project

Jackson County, OR
Bureau of Land Management, Medford District, and Jefferson Sustainable Development Initiative
Submitted by George McKinley, Jefferson Sustainable Development Initiative
    
  
Project ID: 1028

1. Name - Boaz Forest Health and Small-Diameter Utilization Project

Context | Objectives | Treatment Specifics | Utilization | Targets | Pre Treatment data | Post Treatment data | Links 

 
 The goal of the Boaz project was to enhance forest health and provide regional employment through a collaborative project to remove and process small-diameter material. The project was located in Jackson County, Oregon, on the high-divide ridges in the Boaz and Neds Gulch drainages of the Applegate River Watershed, and the Yale Creek drainage of the Little Applegate River Watershed. The forests were dry, steep, Douglas-fir dominated stands with shallow soil and westerly to southerly aspect. Douglas-fir, ponderosa pine, sugar pine, incense cedar, madrone, and white and black oak were the major tree species in the stand. The understory consisted of whiteleaf manzanita, deerbrush ceanothus, creambrush oceanspray, and serviceberry.

  

The project started in 2002 and focused initially on building community support. A broad range of groups from the Klamath-Siskiyou Wildlands Center to the Southern Oregon Timber Industry Associates supported the project, demonstrating the shared interest as well as outreach efforts by the contractor and the BLM. Over 300 people visited the site as part of the project's efforts to garner public support for forest health treatments, explain and guide the project, and utilize project findings to help shape agency stewardship and contracting planning. The project was delayed for nearly a year because of administrative issues and regulatory concerns about the Siskiyou salamander, but these were laid to rest and the project was completed in January of 2007.

The project aimed to restore overstocked, fire suppressed, small-diameter Douglas-fir stands and release individual suppressed ponderosa pine. Fire-return interval estimates suggest that the stands had missed five fire cycles. The majority of the harvest areas were homogeneous conifer stands that had over 160 square feet of basal area per acre. There were a fair number of young, healthy stands (50 to 100 years of age) that were scattered among the more decadent 120- to 170-year-old stands. Thinning was designed to keep these younger stands vigorous and growing in height and diameter by reducing the number of trees per acre from over 500 to 135, and by raising stand average DBH from 8.6 inches to 11.4 inches. The harvest decreased canopy closure from 80–100% to 50–60%, reduced crown fire risk, and encouraged the development of old-growth structure. There were no severely infected Douglas-fir dwarf mistletoe stands; just minor sprinklings of infected trees, most of which were cut. The harvest removed trees down to 4 inches diameter with hand felling, ground-based skidding, yarding, skid to landing, landing sort (loader and skidder), on-site chipping (roll-off system), on-site milling (portable chipping head), and self-loader transport. The contractor removed timber, hog fuel, poles, posts, firewood, and blanks for flooring and panelling. Thirty-eight tons of logs per acre at an average price of $79 per ton were removed, in addition to 14 tons per acre of woody biomass at an average price of $29 per ton.



In addition to ecological objectives, the project was designed to test the technical and economic feasibility of small-diameter harvests in the area, monitor forest health and fire hazard reduction, determine market opportunities for small-diameter material, expand the capacity of the rural work force, and improve community/agency relations. Funding for the Jackson County Title II Project came courtesy of the Secure Rural Schools and Community Self-Determination Act at the direction of the Medford District Resource Advisory Committee.




Links
 

 2Land Ownership
Bureau of Land Management

 
 3Location
Jackson County, Oregon
 
4Forest Type
Douglas-fir; Mixed conifer

 
 Context
 5Is this project a part of a landscape plan?
Yes

 
 6In a Wildland Urban Interface (WUI)?
Yes

 
 7Acreage treated
47 ac
 
 8Type of contract
Timber sale
 
 9Funding source
Secure Rural Schools and Community Self-Determination Act; Jackson County Title II Project; Medford District Resource Advisory Committee
 
 10Collaborators and partners
Jefferson Sustainable Development Initiative
 
 11Project start date
Mar. 2002
 
12Project completion date
Jan. 2007
 
 Treatment Goals
 13Restoration, watershed or habitat improvement

 
 14Reduce fuel load

 
 15

 
 16

 
17Forest Stand Improvement

 
 Treatment Specifics
 18Primary treatment objective
Reduce number of trees, keep healthiest trees, remove biomass down to 4 inches dbh
 
 19How does biomass removal fit with other objectives?
Testing market and systems viability for biomass removal was integral to project design. Removal of biomass was considered consistent with overall forest health and stand improvement goals.
 
 20Treatment description
Restoring vigor, resilience and stability through fuels reduction, restoration thinning and density management.
 
 21Description of contractors
Primary contractor individual in partnership with NGO, other contractors NGO staff or local workforce.
 
 22Travel distance for contractors
Several out-of-town but in-region
 
 23Type of equipment used
Hand felling, ground-based skidding, yarding, skid to landing, landing sort (loader and skidder), on-site chipping (roll-off system), on-site milling (portable chipping head), self-loader transport.
 
 24Treatment of residual slash if any
Most removed, clean-up landing piles burned by BLM.
 
 25Treatment cost per acre
$350/acre with utilization
 
26Trucking costs
$18/ton
 
 Utilization
 27Products from project
Sawtimber, hog fuel, poles, posts, firewood, and blanks for flooring, paneling and shop.
 
 28Price for products 
Average log price $89/ton; average ton-wood price $29/ton
 
 29Date of Sale
2004-2006
 
 30Did biomass markets exist previous to project?
Yes
 
 31Type of utilization
Hog fuel, firewood, post and pole
 
 32How well did the woody biomass match the utilization options?
Matched at given range of options
 
33Distance to utilization
40 miles
 
 Treatment guidelines, targets, limitations
 34Diameter limit
16 inches, except in thinning around mature pine and in yarding corridors when necessary
 
 35Basal area reduction
Thin to 120
 
 36Crown coverage
To 50-60%
 
 37Fuel loading
14 tons per acre removed
 
 38Retention guidelines
15-30 foot spacing, healthy trees
 
 39Treatment of snags and downed logs
Leave except for hazards
 
 40Soil impacts
Minimized by yarding and use of existing skid trails
 
41Other ecological impacts monitored

 
 Pre Treatment
 42Fuel load

 
 43Stem density (stems/ac)
556
 
 44Basal area (ft2/ac)

 
 45Canopy closure (%)
80-100%
 
 46Height to live crown base

 
 47Snags and downed woody material

 
 48Size class distribution
52% < 8” dbh; 36% 8-12” dbh; 8% 12-16” dbh
 
 49Tree species composition
95% Douglas-fir; 4% ponderosa pine; 1% incense cedar
 
 50Presence/absence of invasive species
Bull thistle and yellow star thistle present
 
51Soil and other ecological data
Erosion risk without best management practices
 
 Post Treatment
 52Fuel load
14 tons per acre removed
 
 53Stem density (stems/ac)

 
 54Basal area (ft2/ac)

 
 55Canopy closure (%)

 
 56Height to live crown base

 
 57Snags and downed woody material

 
 58Size class distribution

 
 59Tree species composition

 
 60Presence/absence of invasive species

 
 61Soil and other ecological data

 

 
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