APPENDIX CRITERIA FOR RATING PRODUCTIVITY 



691 



STANDARDS FOR THE PACIFIC 

 NORTHWEST, CALIFORNIA, AND 

 COASTAL ALASKA REGIONS 



Forest Type Groups 



These three regions are treated as a group in 

 this summary because of similarities in the stand- 

 ards used. The timber type groups recognized 

 for each region were as foUow^s: 



Californ ia 

 Douglas-fir 

 Ponderosa pine 

 Western white pine 

 Fir-spruce 

 Redwood 



Pacific NoTthmenl 



Douglas-fir 

 Ponderosa pine 

 Western white pine 

 Fir-spruce 



Hemlock-Sitka spruce 

 Lodgepole pine 

 Hardwoods 

 Western larch 



Alaska 



Hemlock-Sitka spruce 



Species Classification 



The classification of species for the various 

 forest type groups is shown in table 103. 



Existing Stocking 



Table 104 summarizes the standards used to 

 determine existing stocking at observation points 

 in the Pacific Northwest Region. Points were 

 considered stocked if crop trees of the indicated 

 age or size were found within the distances shown 

 in the table. 



Integration of the stocked-quadrat method with 

 the point-sampling system for determination of 

 stocking of reproduction in the West warrants 

 special discussion. The following tabulation re- 

 lates the entries in tables 104 and 105 for seedlings 



Table 103. — Classification of species according to forest type yroup,^ Pacific Northwest, California, and Coastal Alaska Regions 





Douglas-fir 



Ponderosa pine 



Hemlock-Sitka 

 spruce 



Western white 

 pine 



Fir-spruce 



West- 

 ern 

 larch, 

 Wash- 

 ington 



and 

 Oregon 



Red- 

 wood, 

 Cali- 

 fornia 





Species 



Washington 

 and Oregon 



Cali- 

 fornia 



California 



Washington 

 and Oregon 



Wash- 

 ington 



and 

 Oregon 



Alaska 



Wash- 

 ington 

 and 

 Oregon 



Cali- 

 fornia 



Washington 

 and Oregon 



Cali- 

 fornia 



Hard- 

 woods 





East 

 side 



West 

 side 



East 

 side 



West 

 side 



East 

 side 



West 

 side 



East 

 side 



West 

 side 





Alder, red _ _ 





A 













A 





















Ash, Oregon 

































Birch, white . 



















2D 

















3 A 



California-laurel 

































3 A 



Cottonwood, black 





A 

 D 













D 



















Douglas-fir 



D 



D 



A 



D 



D 



D 



D 



D 



D 



D 

 A 



D 

 A 



D 



D 



D 





Fir, alpine 





Fir, grand . 





* A 













A 

















Fir, lowland white.. ... 





























A 





Fir, noble 





D 

 < A 





















D 











Fir, Pacific silver 















D 









D 

 D 



"v" 



D 











Fir, Shasta red . 





















D 

 D 

 D 



D 

 D 









Fir, white . 



A 







A 



A 



A 



A 



A 







A 



A 



A 







Hemlock, mountain 





A 

 D 







Hemlock, western. . . . 





i D 



A 



A 

 A 











D 











A 





Incense-cedar 



A 

 D 



A 



A 



A 

 A 



A 





A 





A 







Larch, western 













D 







Maple, bigleaf,. 



A 











A 

















































3A 



Pine, Jeffrey 









D 



D 













D 







D 



"' b " 



'D 











A 



D 



8D 



A 







A 

 D 







A 





A 



A 



A 

 D 







Pine, ponderosa 



D 

 «D 

 A 

 D 



D 



'D 



D 



'D 



D 

 'D 



D 



eD 





D 



9D 



D 



D 



'D 



















Pine, western white 







D 



D 



D 































D 



























D 









5D 











D 



A 

 A 

















Spruce, black 











































A 











D 



A 





D 







Spruce, Sitka 















D 



D 



2D 







D 





Spruce, white 































Tanoak 





A 





























A 



















A 









A 











































' Lodgepole pine type group: All species classified as desirable. 



2 For some localities these species are desirable. E.xample: Pure stands of 

 ash within overflow areas: pure stands of oak in Willamette Valley; pure 

 patches of California laurel. 



2 On the Kenai Peninsula of the Coastal area. 



' These species were classified as desirable when found on areas ecologically 

 suited to them. 



' These species were classified as acceptable when found on sites which 

 were severe because of lack of moisture caused by shallow soil or exposure. 



« Sugar pines and western white pines outside of blister rust control areas 

 were not counted as crop trees unless they were 12 inches d. b. h. or larger 

 and free of blister rust stem cankers. 



' Outside of blister rust control zones, sugar pines under 6 inches d. b. h. 

 on low rust-hazard areas, 12 inches d. b. h. on medium rust-hazard areas, 

 and 20 inches d. b. h. on high rust-hazard areas were considered noncount 

 trees. Sugar pines bearing rust cankers were not counted as crop trees. 



