Table 47. — Management strategies by ecosystem, 1970 



(Thousand acres) 



[Totals may not add due to rounding] 



Ecogroup by ecosystem 



No 



livestock 



(A) 



Some 



livestock 



(B) 



Extensive 



management 



(C) 



Intensive 



management 



(D) 



Maximize 



livestock 



(E) 



Exploita- 

 tive 

 (X) 



Total 



Western Range : 



Sagebrush 



Desert shrub 



Southwestern shrubsteppe 

 Chaparral-mountain shrub 



Pinyon-juniper 



Mountain grasslands 



Mountain meadows 



Desert grasslands 



Annual grasslands 



Alpine^ 



Total 



Western Forest: 



Douglas-fir 



Ponderosa pine 



Western white pine — 



Fir-spruce 



Hemlock-Sitka spruce 



Larch 



Lodgepole pine 



Redwood 



Hardwoods 



Total 



Great Plains: 



Shinnery 



Texas savanna 



Plains grasslands 



Prairie 



Total 



Eastern Forest: 



White-red-jack pine 



Spruce-fir 



Longleaf-slash pine 



Loblolly-shortleaf pine 



Oak-pine 



Oak-hickory 



Oak-gum-cypress 



Elm-ash-cottonwood 



Maple-beech-birch 



Aspen-birch 



Wet grasslands 



Total 



Grand Total 



3,766 

 27,281 

 3,219 

 1,963 

 8,514 

 4,633 

 260 



4 

 8,160 



57,800 



24,941 



2,090 



2,656 



16,975 



7,076 



400 



7,922 



928 



415 



63,405 



22 



351 



9,551 



1.835 



11,759 



12,390 

 23,392 



6,311 

 24,814 

 10,716 

 73,544 

 24,235 

 10,032 

 27,856 

 16,780 



2,578 



233,648 



366,612 



22,304 



36,175 



20,210 



17,083 



5,871 



10,840 



1,024 



3,601 



9 



111 



55,717 

 16,657 

 11,795 

 11,431 

 21,900 

 46,201 



2,091 

 19,895 



4,691 

 46 



8,329 

 3,467 

 1,315 

 1,000 

 3,274 

 7,503 

 155 

 1,395 

 1,051 

 4 



2,037 



392 

 590 

 769 

 10,053 

 503 

 874 

 313 



2,064 



2,461 



1,668 



13 



2,346 



607 



11 



332 



632 



117,232 



9,814 



15,975 



1,396 



7,408 



190,428 



3,999 

 17,562 



27,497 



23 



262 



15,531 



10,138 



157 

 1,677 



3,853 

 9,200 



890 

 2,020 



4,571 



15,858 



840 



1,312 



401 



52,220 



215 



654 



20,601 



1,906 



40,332 



809 



6,040 



123,075 



12,502 



1,125 



396 



5,163 



10,114 



3,733 



1,312 



546 



2,151 



9,890 



18,396 



2,235 



15 



862 



27 



23,378 



142,428 



19,406 



30,983 



1,962 



13,855 



9,002 



8,044 



21 

 4,816 

 3,569 

 1,986 



82 



494 



2,647 



1,282 



21,208 



174 



5,848 



57 



128 



185 



7,703 

 1^526" 



426 

 1,944 



1 

 464 



904 



166 



203 



11,945 



13,351 



11,518 



14,578 



9,817 



2,815 



4,151 



3,668 



185 



43,345 



31,852 



9,869 



2,370 



72,399 



236,175 



405,039 



57,898 



50,196 



85,676 



94,219 



86,043 



38,601 



32,081 



42,677 



79,839 



4,045 



26,098 



6,700 



8,322 



418,625 



38,935 



37,568 

 4,053 



24,384 

 7,076 

 5,144 



19,143 

 928 



23,398 



160,629 



2,004 



15,221 



173,260 



38,374 



228,859 



12,556 

 23,595 

 20,889 

 55,095 

 34,464 

 125,081 

 34,074 

 25,038 

 35,633 

 22,564 

 4,494 



393,483 



1,201,596 



^ Includes barren areas above treeline. 



131 



