Application of normal-yield tables, etc -The Douglas IIr region and its forests_________ t Continued Growth characteristics of the foresL__________ 6 Trend of understocked stands toward Growth characteristics of the tree_____________ 7 33 normality___ .__ •_____ •____________ _ Factors Inlluencing Yield of Douglas IIr_______ 8 Methods of conducting yield surveys ____ _ 33 Site quality ________________________ , _____ 8 Field work___ .
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McArdle et al. (1949) studied this question.