Location: Douglas County, Oregon
Scope: In 2004, a private landowner hired IRM to restore oak woodlands. Treatments included:
· Brush mowing
· Native Planting
IRM utilized its Lightfoot machine to masticate invasive hawthorne around existing Oregon White oak trees in an a savanna forest type. Restoration crews sprayed resprouts to achieve complete control of this noxious weed.
Herbicide use was thereby reduced compared to spraying of mature plants. IRM is also implemented treatments to control annual invasive grasses. Native bunchgrasses were planted to re-establish vegetation on this site.
Location: Corvallis, OR
Scope: In October 2003, the City of Corvallis, Parks and Recreation hired Integrated Resource Management in partnership with the Nature Conservancy to restore the oak woodlands at Bald Hill Park. Treatments included:
· Thinned 8 acres of oak to open woodland tree density
· Created 4 acres of wildlife wood piles
· Seeded 6 acres with native grass and annual forbs
· Restored 4 acres of savanna density habitat to conditions
favfavorable for associated bird species
· Tilled and seeded 6 burn piles to ameliorate soil degradation
frofrom burning brush and cut trees past treatments
Restoration focused on expanding these treatments with the objective of recreating savanna conditions to support home range habitats of open oak dependent species including acorn woodpecker, white-breasted woodpecker, and neo-tropical species including lazuli bunting, black-headed grosbeak, and Bullock’s oriole.
Herbicides were used to eradicate non-native species. These areas were then re-seeded with native grasses and forbs. Brush mowing decreases the fire danger to the surrounding community, thereby creating a fire resilient ecosystem. Prescribed burning will occur every 5 to 10 years to maintain a fire resilient ecosystem.
Location: Sutherlin, Oregon
Scope: IRM was hired to create a 25 acre fuel break within the Wildland Urban Interface (WUI). The LightfootTM was mounted with the Fecon Bullhog® to mow and masticate a field of English hawthorne which has invaded an old pasture.
The hawthorne measured up to 6″ in DBH and over 15′ tall. Follow-up treatment included planting to re-establish vegetation on this site.
Location: Klickitat River, Washington
Scope: IRM restored an oak savanna and woodlands in the Klickitat River Canyon, an area that contains the largest concentration of these habitats in Washington State. Activities included thinning stands to remove conifers and overstocked oak, use of goats and brush mowing to reduce shrub cover, and native seeding to re-establish bunchgrass communities.
Silvicultural prescriptions were based on reducing extreme fire behavior and associated fire effects, increasing mast production and tree vigor, and habitat needs of the western grey squirrel. A combination of low-impact skid steer (LightfootTM) with a sheer, and hand crews were used during thinning operations.