ABSTRACT 



To help delineate regeneration problems before developing a research 

 program, I conducted a field reconnaissance in 1968 and 1969, of Rocky 

 Mountain Douglas-fir ( Pseudotsuga menziesii var. glauca (Beissn. ) Franco) 

 cutting areas in Forest Service Regions 1 and 4. From file records and 

 field measurements, I obtained information about topograph}', soils, seed- 

 bed, shade, competing vegetation, opening size, habitat type, and historj^ 

 of treatment. Success of Douglas-fir regeneration is presented as percent 

 milacre stocking. Results indicate that the effects of various regeneration 

 methods and the success expected depend largely upon habitat type. Thus, 

 attempts to generalize about seedbed, shade, and other species require- 

 ments can be misleading. Results were used to develop a research pro- 

 gram for regeneration of Douglas-fir. Problem solutions seemed to center 

 around the need for more careful administration of planting operations and 

 plantation protection and for development of silviculture prescriptions to 

 match species requirements and site potential. 



