Driftless Area - Resilience

Treatment: allow some change in current conditions, but encourage eventual return to reference conditions

Management Goals

  • Multi-cohort stand with greater structural complexity, larger trees, and maintained or increased quality
  • Favor native mast-producers that are drought, fire, frost, disease, and wind tolerant
  • Increase genetic diversity of tree community
  • Maintain spare and native midstory, allowing for advance regeneration of oak and hickory species
  • Provide hard and soft mast for wildlife
  • Reduce prevalence of invasive species
Dense green forest.
In the Resilience treatment the team will focus on increasing heterogeneity and structural complexity in the Driftless Area ASCC site. Photo Credit: Courtney Peterson, Colorado State University.

Strategies & approaches

lookinng up at the canopy of a forested area.
Driftless Area ASCC Site. Photo Credit: Courtney Peterson, Colorado State University.
  • Invasive shrub treatment
  • Midstory removal
  • Site preparation including prescribed fire if conditions allow
  • Underplant intermediate, shade-tolerant, fire-adapted native species
  • Continuous cover irregular shelterwood: first and subsequent establishment cuttings will create three 0.75-acre opening and three 0.75-acre patches 40-50% cover
  • Free thinning matrix to ~70% stocking
  • Retain some dominants as seed trees, plant additional seedlings (chinkapin oak, white oak, northern red oak, black walnut, bur oak, shagbark hickory, black oak, black cherry)

Site Leads & Partners

Miranda Curzon (Iowa State University) is the site lead for the Driftless Area. Key partners include Bruce Blair and Jeff Goerndt (Iowa Department of Natural Resources), Brad Hutnik and Greg Edge (Wisconsin Division of Forestry), and Mike Reinikainen and Paul Dubuque (Minnesota Department of Natural Resources).

Miranda Curzon
Driftless Area ASCC Site Lead

Assistant Professor
Natural Resource Ecology and Management
Iowa State University
234 Science 2 2310 Pammel Dr Ames, IA 50011-1031
Phone: 515 294 1587
mcurzon@iastate.edu