The stocked-quadrat method of determining stocking commonly uses the 

 4-milacre quadrat. Using this method, the Kasaan District of the South 

 Tongass National Foresti' found an average of 63 percent stocking of 

 established reproduction on 10 areas cut over from 1 to 4 years before. 

 None had less than 42 percent. New reproduction on the same areas-- 

 reproduction that was less than a season old--stocked 73 percent of the 

 plots, on the average. If the examiners are correct in their estimate 

 of "established", these areas are well-stocked, but as shown in the 

 table above the great variation during the first 5 or 6 years in numbers 

 of seedlings makes it questionable whether our definition of a stocked 

 plot is adequate. If one such survey is to be the criterion of whether 

 to seed the area or parts of it, then plots we call stocked had better 

 stay stocked. It might be better to wait until 5 years after logging 

 to determine areas that need seeding to bring up to full stocking, and 

 then to make sure that such areas are not being naturally seeded. If 

 poor seed beds are the cause of understocking, man-spread seed will be 

 no more effective, and unless mice infest that certain area and not 

 others--an unlikely thing--Endrin-treated seed will not be the cure. 



First or second year seeding might be reserved for areas that seem to 

 favor a quick invasion of such shrubs as salmonberry, currant, or 

 bracken fern. Areas on cutovers that have very poor seed beds could be 

 mapped for early treatment. The first year's seedlings at least indi- 

 cate the extent of seed dispersion, and on large cuttings this can 

 indicate the areas to be seeded if it is desired to hurry the establish- 

 ment of seedlings on these distant areas. 



A clearcutting was intentionally made more than a mile in diameter on 

 the Maybeso Experimental Forest to test the distance of seedfall. Log- 

 ging was completed on this particular area in the fall of 1956 and there 

 was a fair seed crop that fall. How large such cuttings can be depends 

 upon how far sufficient reproduction extends from the seed sources along 

 the edge. 



Seed traps were set out in a pattern designed to give data on dispersion, 

 but this was prevented by "unusual weather". Heavy snows and strong 

 winds came during the seed fall. Tops of traps were snow-covered and 

 seed blew off between visits to the traps. So it became necessary, for 

 the present, to rely on actual germination of seedlings to discover how 

 far seed was dispersed into the cutting. During the servicing of the 

 traps, seed was observed on the snow in the very center of the cutting. 



For the purposes of the reproduction survey, varying distances from the 

 seed source were represented by four zones extending from the periphery 

 toward the center of the cutting. These were: 



1/ From figures supplied by Kasaan District Ranger. 



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