Specifications include, but are not limited to: A.Simple Spacing ThinningWhen thinning on a spacing basis, Contractor will select and leave uncut the largest live conifer trees of good form and vigor that will maintain the average spacing designated in the Unit Description Table. Tomaintain average spacing, Contractor may not need to cut as many trees immediately adjacent to gaps. However, clumps or patches should not be left unthinned to make up gaps in the stand. If the Compliance Forester determines that narrower spacing is appropriate for portions of a Unit, 6' x 6' spacing will be used. Spacing is the average distance between trees that will result in the correct number of tree left per acre.The number of trees left per acre will be measured by DNR to determine compliance with the Per Acre Zone of Acceptance as described in Clause C-02.B.Diameter Limit ThinningWhen thinning on a diameter limit basis, Contractor shall cut trees smaller than the diameter limit, specified in the Unit Description, andwill leave uncut the largest live conifer trees of good form and vigor that will maintain the spacing designated in the Unit Description. Contractor will only cut trees larger thanthe diameter limit when individual trees are clearly diseased, damaged, or deformed. As a general rule, small trees growing into the canopy of the larger trees will be cut. Spacing will be determined by the average number of trees left uncut per acre, including trees both above and below the diameter limit. Contractor shall not damage the stand by cutting trees that will create undesirable gaps in the stand. The number of trees left per acre will be measured by DNR to determine compliance with the Per Acre Zone of Acceptance as described in Clause C-02, except when desirabletrees exceeding the diameter limit comprise a majority of the total tree count. In that case,the Per Acre Zone of Acceptance will beincreased by the number of trees above the diameter limit exceeding a simple majority. C.Clump SpacingThinningWhenthinning on a clump spacing thinning basis, Contractor shall leave clumps of trees throughout the stand, with treeless gaps between each clump (see figures on next page). The objective of clump spacing thinning is to promote a natural “clumpy” spatial patternacross the landscape, as opposed to a uniform grid pattern of individual leave trees.The number of leave trees per clump, and the spacing of leave trees within a clump, will be specified in Clause B-06. The spacing may be varied according to specifications in Clause B-06 in order to leave the most desirable trees. Average spacing between clumps will be specified in Clause B-06. Spacing shall be measured from the center of each clump. The spacing between clumps shall not be materially changed across the unit. Clumps shall be selected to leave uncut the largest live conifer trees of good form and vigor, while maintaining the clump spacing guidelines outlined above. Clump spacingwill be measured by DNR to determine compliance as described in Clause C-02.