GRAZING AND FORAGE PRODUCTION ON NATIONAL FORESTS 



47 



Table 14. 



■Vegetative record of protected plot No. 5 in Bear Creek Canyon, 

 1916 and 1921 



Species recorded, 1916 : 



Sedge (Carex sp.). 



Yarrow {Achillea lanulosa). 

 Species recorded, 1921 : 



Androsace (Androsace puberulenta) . 



Bladderpod (Lesqucrella kingii). 



Dandelion (Leontodon taraxacum). 



Douglas knotweed {Polygonum doug- 

 lasii) . 



False cymopterus (Pscudocymopterus 

 tidestromii) . 



Common brome (Bromus inermis) 

 (planted). 



Knotweed (Polygonum aviculare). 



Lamb's-quarters (Chenopodium album). 



Species recorded, 1921 — Continued. 



Meadow barley (Hordeum nodosum) . 



Onion grass (Melica spcctabilis). 



Pachylophus (Pachylopltus cacspito- 

 sus). 



Peppergrass (Lcpidium ramosissimum) . 



Potentilla (Potentilla sp.) . 



Sedge (Carex sp.). 



Letterman needle grass (Stipa letter- 

 man i) . 



Timotby (Phlcum pratense) (planted). 



Tongue-leaf violet {Viola linguae folia) . 



Violet wheat grass {Agropyron viola- 

 ceum ) . 



Yarrow (Achillea lanulosa). 



SUMMARY OF CHANGES IN VEGETATION AND FORAGE VALUE OF COVER 





1916 



1921 



Per cent 

 increase 



or 



decrease 



(— ) from 



1916 to 



1921 





2 

 .017 



60 

 90 



.01 

 .015 



19 

 .140 



46. 328 

 72. 407 



.065 

 .102 



850 



Density . .. - ... - 



723.5 



Palatability percentage : 



Cattle - - 



-22. 79 



Sheep ... - --- - 



-19. 55 



Forage factor: 



Cattle 



550 





580 







Table 15. 



-Vegetative Record of Protected Plot No. 4 in Bear Creek Canyon, 

 1916 and 1921 



Species recorded, 1916 : 



Dandelion (Leontodon taraxacum). 

 Violet wheat grass (Agropyron vio- 



laceum ) . 

 Yarrow (Achillea lanulosa). 

 Species recorded, 1921 : 



Androsace (Androsace puberulenta) . 

 Aster (Aster frondeus) . 

 Dandelion (Leontodon taraxacum). 

 Douglas knotweed (Polygonum doug- 



lasii) . * 



Downy brome (Bromus tectorum) . 

 False cymopterus (Pscudocymopterus 



tidestromii). 



Species recorded, 1921 — Continued. 

 False yarrow (Chaenaetis sp.). 

 Knotweed (Polygonum aviculare). 

 Lamb's-quarters (Chenopodium album). 

 Mountain sorrel (Oxyria digyna) . 

 Pachylophus (Pachylophus cacspito- 



sus ) . 

 Peppergrass (Lepidium ramosissimum) . 

 Tansy mustard (Sophia incisa) . 

 Violet wheat grass (Agropyron viola- 



ceum). 

 Yarrow (Achillea lanulosa). 



SUMMARY OF CHANGES IN VEGETATION AND IN FORAGE VALUE OF COVER 





1916 



1921 



Per cent 



increase 



or 



decrease 



(— ) from 



1916 to 



1921 



Number of species.. ... ..- 



3 



.01 



60 

 90 



.006 

 .009 



15 

 .13 



26.54 

 49.42 



.035 

 .064 



400 



Density.. _. .... 



1,200 



Palatability percentage: 



Cattle 



—55.8 



Sheep . ... ... ...... ... 



-45.1 



Forage factor : 



Cattle 



483.3 



Sheep. 



611.1 







