CONTENTS 



Page 



Introduction 67 1 



Definition and explanation of terms 67 1 



Crop tree 671 



Effect of felling age 671 



Seed trees 672 



Forest types 672 



Species classification 672 



Established seedlings - 672 



Clear cuttings 672 



Procedures for Eastern United States 672 



Sample calculation of productivity 672 



Existing stocking ._._.__.__ 674 



Existing stocking modified by composition 674 



Prospective stocking 675 



Effect of felling age 675 



Final productivity rating ^_. 676 



Procedures for Western United States 676 



Existing stocking 676 



Prospective stocking 676 



Effect of composition 676 



Effect of felling age 677 



Sample calculation 677 



General standards of classification applicable to all 



regions 677 



Standards for the New England and Middle Atlantic 



Regions 679 



Forest type groups 679 



Species classification 679 



Existing stocking 679 



Prospective stocking 679 



Spruce-fir type group 679 



White pine type 679 



Maple-beech-birch and oak-hickory type 



groups 680 



Loblolly-shortleaf pine type group 680 



Oak-pine type group 680 



Effect of felling age 680 



Standards for the Lake States Region 680 



Forest type groups 680 



Species classification .680 



Existing stocking 680 



Prospective stocking 680 



Aspen-paper birch type group 680 



Spruce-fir type group 680 



White-red-jack pine type group 682 



Maple-beech-birch type group 682 



Oak-hickory type group 682 



Effect of felling age 683 



Standards for the Central Region 685 



Forest type groups 685 



Species classification 685 



Existing stocking 685 



Prospective stocking 685 



Hardwood type groups 685 



670 



Page 

 Standards for the Central Region — Continued 

 Prospective stocking — Continued 



Loblolly-shortleaf pine type group 686 



Effect of felling age 686 



Standards for the Plains Region 687 



Forest type groups ._ 687 



Species classification 687 



Existing stocking 687 



Prospective stocking 687 



Effect of felling age 688 



Standards for the South Atlantic, Southeast, and 



West Gulf Regions 688 



Forest type groups 688 



Species classification 688 



Existing stocking 688 



Prospective stocking 689 



Loblolly-shortleaf pine and longleaf-slash pine 



type groups 689 



Oak-hickory, oak-gum-cypress, and oak-pine 



type groups 690 



Effect of felHng age 690 



Standards for the Pacific Northwest, California, and 



Coastal Alaska Regions 691 



Forest type groups 691 



Species classification 691 



Existing stocking 691 



Prospective stocking 691 



Douglas-fir and other type groups west of the 



Cascade Summit in the Pacific Northwest. _ 692 



Douglas-fir type group in California 694 



Other type groups in the Pacific Northwest and 



California Regions 695 



Hemlock-Sitka Spruce type group in Coastal 



Alaska 695 



Effect of felling age 695 



West Coast supplementary study 696 



Standards for the Northern Rocky Mountain 



Region ._ 696 



Forest type groups 696 



Species classification 696 



Existing stocking 696 



Prospective stocking 698 



Effect of felling age 698 



Standards for the Southern Rocky Mountain 



Region 699 



Forest type groups 699 



Species classification 699 



Existing stocking 699 



Prospective stocking 699 



Effect of felling age 700 



Bibliography 702 



Existing stocking 702 



Prospective stocking 703 



Effect of felling age 703 



