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North Central Research Station
1992 Folwell Ave.
St. Paul, MN 55108

Research Station

200 W.T. Weaver Blvd,
Asheville, NC 28802

 United States Department of Agriculture Forest Service.USDA logo which links to the department's national site.Forest Service logo which links to the agency's national site.
How to use OAKUS

To use OAKUS, you will need the following information:

  • site index your forester or county soil survey can provide this information.  For OAKUS, acceptable values are 52 to 79 ft. This is the range of site indices in which the study was conducted.
  • Initial stem caliper of the seedlings you will be planting.  Acceptable values are 0.15 to 1.0 in.  This is the range of calipers in which the study was conducted.
  • Competition Control: two herbicide treatments, one treatment, or no treatment.
  • Percent stocking the residual stocking left when the shelterwood was created.
  • Shoots whether or not you will top clip the seedlings prior to planting. Top clipping gives the trees a slightly higher probability of success.
  • Target Trees Per Acre the number of successful trees you would like to have by year 11. A successful tree is one that survives and attains at least 80 percent of the height of dominant competitors.

Just enter this information into the designated boxes in OAKUS then click on the Submit button.  Your stand and management specific information will be processed and the program will generate a recommendation window for your use.

Start using OAKUS

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 Last Modified: April 28, 2006