Fish, Wildlife, and Park Land 



Land administered by the Montana Department of Fish, Wildlife, and 

 Parks. 



Grazability 



The degree to which the range will be utilized. The factors affecting 

 grazability are slope, miles to the nearest stream, trails and roads in 

 the area, water developments, brush, slash, rocks and mechanical barri- 

 ers. 



Gross growth 



Annual increase in net volume of trees in the absence of cutting and 

 mortality. It includes ingrowth and accretion. 



Growing-stock trees 



Live trees of commercial species qualifying as desirable or acceptable 

 trees. (Excludes rough, rotten, and dead trees.) 



Growing stock volume 



Net volume in cubic feet of live sawtimber trees and live poletimber 

 trees (all trees 5.0 inches d.b.h. and larger) from stump to a minimum 

 4.0 inch top (of central stem) outside bark. Net volume equals gross 

 volume less deduction for rot and missing bole sections. 



Habitat type 



An aggregation of all land areas potentially capable of producing similar 

 plant communities at climax. 



Hardwoods 



Dicotyledonous trees, usually board-leaved and deciduous. 



Increaser (increasing range plant) 



Plants which increase under heavy grazing pressure. These are usually 

 less palatable plants. 



Indian lands 



Tribal lands held in fee by the Federal Government, but administered for 

 Indian tribal groups and Indian trust allotments. 



Ingrowth 



The number or net volume of trees that grow large enough in diameter 

 during a specified year to qualify as saplings, pole timber, or sawtim- 

 ber. 



Inoperable stand 



Any stand on a site that is considered inoperable using current, conven- 

 tional Montana logging systems (balloon and helicopter systems are not 

 considered conventional in Montana) . A more detailed explanation is giv- 

 en under treatment code 3<i in Appendix 5. 



Invader (invading range plant) 



Plants that are not part of the climax cover but which invade under hea- 

 vy grazing pressure. Few invaders are preferred by livestock and many 

 are worthless. 



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