U.S. Forest Service Research Paper RM.
Rocky Mountain Forest and Range Experimemt Station, Forest Service, U.S. Department of Agriculture, 1974
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acre ASPECT average balance basal area beetle BLOCK CALL canopy changes Collins Colo Colorado computed continue cover density Creek cutting DATE developed diameter effects equation evapotranspiration factors feet Figure FILE ﬁr forest cover function growth height hydrologic inches included increased indicate infestation initial INTEGER interval Land larger Leaf less lodgepole pine logging melt natural openings outbreak partial cutting peak percent period PHASE planning unit plots practices produced Program Range Exp reduced regeneration REGION removed require response units RETURN River road Rocky Mountain runoff season seed seedlings selection Serv simulation slope snow snowmelt snowpack soil species specified spruce spruce-fir stand stock level studies subalpine Subroutine thinning timber harvesting tion treatment trees USDA values vary volume water yield watershed watershed management zone