﻿Species 
  Site 
  Index 
  

  

  Comparative 
  Species 
  Productivity 
  

  

  Assumed 
  Initial 
  Number 
  Trees 
  Per 
  Acre 
  

  

  Unmanaqed 
  Stands 
  

  

  Managed 
  Stands 
  

  

  Species 
  Yield 
  Data 
  

  

  Management 
  Treatment 
  Assumptions 
  

   Tree 
  Growth 
  Information 
  

   Mortality 
  Assumptions 
  

  

  Stand 
  Projections 
  

  

  Comparative 
  Yield 
  

  

  Timber 
  Growing 
  Costs 
  

  

  t 
  

  

  Product 
  Values 
  Generated 
  

  

  Comparative 
  Rate 
  of 
  Return 
  

  

  Figure 
  3. 
  — 
  A 
  method 
  of 
  evaluating 
  species 
  alternatives 
  for 
  

   stand 
  establishment. 
  

  

  10 
  

  

  