Table 5.8 — Production of range grazing in ttie 48 contiguous States ecosystem group, by ecosystem, 



and management level, 1976 



(Thousand animal unit months) 



Ecosystem group 

 and ecosystem 



Total 



Some 

 livestock 



Management level 



Extensive 

 management 



Intensive 

 management 



Livestock 

 maximized 



Exploitative 

 grazing 



Grasslands 















Mountain grasslands 



16,597 



894 



6,324 



3,230 



4,971 



1,177 



Mountain meadows 



822 



406 



383 



25 



8 







Plains grasslands 



54,325 



3,110 



24,852 



9,854 



7,331 



9,178 



Prairie 



45,350 



925 



15,104 



7,523 



15,558 



6,241 



Desert grasslands 



2,998 



90 



446 



91 



113 



2,258 



Annual grasslands 



10,649 



139 



5,402 



5,030 







78 



Wet grasslands 



5,425 



225 



734 



1,168 



1,645 



1,652 



Alpine 



216 



193 



23 















Total, Grasslands 



136,382 



5,982 



53,268 



26,921 



29,626 



20,584 



Shrublands 















Sagebrush 



24,641 



2,446 



8,571 



2,610 



2,950 



8,064 



Desert shrub 



2,809 



369 



1,645 











795 



Southwestern shrubsteppe 



3,775 



18 



184 



2,793 







781 



Shinnery 



1,848 



117 



536 



643 



511 



42 



Texas savanna 



16,493 



434 



1,337 



6,830 



1,094 



6,799 



Chaparral- mountain 















shrub 



1,612 



337 



73 



430 



743 



29 



Pinyon-juniper 



2,393 



994 



439 



647 



137 



176 



Desert 



























Total, Shrublands 



53,571 



4,715 



12,785 



13,953 



5,435 



16,686 



Western Forests 















Douglas-fir 



1,000 



827 



113 



53 







6 



Ponderosa pine 



1,617 



431 



508 



102 



291 



285 



Western white pine 



50 



8 



5 



• 



37 







Fir-spruce 



418 



190 



224 



2 







2 



Hemlock-Sitka spruce 



173 



21 



18 



* 



134 







Larch 



178 



39 



26 



3 



109 



1 



Lodgepole pine 



527 



352 



175 











* 



Redwood 



28 



16 



12 















Hardwood 



1,222 



178 



431 



487 



116 



10 



Total, Western Forests 



5,213 



2,062 



1,512 



647 



687 



304 



Eastern Forests 















White-red-jack pine 



32 



8 



22 



1 







1 



Spruce-fir 



15 



1 



2 



1 



12 







Longleaf-slash pine 



3,152 



2,010 



1,064 











78 



Loblolly-shortleaf pine 



203 



171 



16 



15 







1 



Oak-pine 



1,567 



1,039 



466 



16 







46 



Oak-hickory 



7,946 



1,547 



2,526 



2,197 



408 



1,269 



Oak-gum-cypress 



1,989 



3 



21 







1,964 



1 



Elm-oak-cotton wood 



748 



107 



480 



1 







160 



Maple-beech-birch 



961 



80 



69 



800 







13 



Aspen-birch 



206 



22 



5 



175 



* 



3 



Total, Eastern Forests 



16,820 



4,987 



4,671 



3,205 



2,384 



1,571 



Total, Contiguous States 



211,986 



17,746 



72,236 



44,726 



38,132 



39,145 



'Less than 1,000 AUM's, 



172 



