• Objective:
  1) To compare the effects of growth and yield of various crop tree treatments with standard area-wide thinning.
  2) To define the optimum number of crop trees per acre to maximize the value yield of non-crop trees.
  3) To determine whether or not regulation of stand density is important and if so, how to achieve it under the crop-tree approach to gain maximum growth and yield.

• Objective:
  To study the effects of thinning and stand density upon: 1) total wood production per unit area, 2) growth of residual trees and stands and 3) quality of trees in the residual stand.

• Objective:
  To determine the effect of individual tree selection cutting on stand growth and yield, species composition, and economics of even-age mixed oak forests of southeastern Ohio.

• Objective:
  To study the effect of thinning and stand density upon: 1) total wood production per unit area, 2) growth of residual trees and stands, 3) quality of trees in the residual stands, and 4) the range of basal areas over which total production is substantially the same.

• Objective:
  1) To study upland oak in its southernmost range.
  2) To demonstrate the proper techniques in thinning southern Appalachian hardwoods.
  3) To demonstrate real world tests of existing growth and yield predictors.

• Objective:
  To demonstrate various harvest cutting methods used in the upland oak forest type.

• Objective:
  1) To determine the effect of the size of the group selection harvesting techniques on: 1) growth and yield, 2) quality, and 3) regeneration in mixed oak-hickory stands.
  2) To relate the effect of the size of the group selection opening to: 1) species composition, quality, growth and yield within openings, 2) the effect on trees bordering the opening and 3) stand growth as a whole.

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