Proposes to continue long-term objectives of learning about effects to overstory trees from overstory density treatments, learning how overstory treatments affect understory trees, and learning how treatments affect understory species diversity. Includes density management treatments reducing the areas with 60 trees per acre to about 17 trees per acre, reducint the areas with 100 trees per acre to about 40 per acre, and measuring thinning and yarding impacts, dead wood decay rates, and artificial and natural recruitment rates of dead wood.