Table 4.4—Simulated effects of selected futures on projected hardwood roundwood supplies, net annual growth, and inventories of growing 
stock on private ownerships by section or region; hardwood stumpage prices indexes, hardwood lumber and roundwood pulpwood consumption 
by section or region; and hardwood lumber price indexes in the United States, selected years 1984-2030—Continued 
’ The future as described by the basic assumptions and other specified and implied assumptions in chapter 3 modified by reducing timber harvests on the national 
forests to 8.1 billion board feet in 1990 and maintaining this level through 2030. 
* The future as described by the basic assumptions and other specified and implied assumptions in chapter 3 modified by assuming that all the marginal cropland 
and pasture in the South that would yield higher rates of return in pine plantations would naturally revert to timberland by 2000 (70 percent natural pine, 
30 percent hardwoods in the Southeast; 40 percent natural pine, 60 percent hardwoods in the South Central). 
’ The future as described by the basic assumptions and other specified and implied assumptions in chapter 3 modified by assuming that all the marginal cropland 
and pasture in the South would be planted in pine. 
'© The future as described by the basic assumptions and other specified and implied assumptions in chapter 3 modified by assuming that all the economic opportunities, 
except those involving intermediate stand treatment and those not involving area change and management types, for increasing timber supplies on timberland in private 
ownerships that yield 4 percent or more net of inflation or deflation would be utilized. 
'! The future as described by the basic assumptions and other specified and implied assumptions in chapter 3 modified by assuming that all the economic opportunities, 
except those involving intermediate stand treatment and those not involving area change and management types, for increasing timber supplies on timberland in private 
ownerships that yield 4 percent or more net of inflation or deflation would be utilized, and all the marginal cropland and pasture would be planted in pine. 
'? The future as described by the basic assumptions and other specified and implied assumptions in chapter 3 modified by assuming that all the economic opportunities to 
increase timber supplies on forest industry timberlands in the Douglas-fir region would be utilized. 
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