28 



BULLETIN 426^ U. S. DEPASTMENT OF AGEICXJLTUEE. 



Table 19 indicated the comparative rate of volume, diameter, and 

 height growth of suga,r pine and two of its common associates, yellow 

 pine and incense cedar. Sugar pine evidently outgrows cedar in all 

 three respects from its fiftieth year. It passes yellow pine in height 

 about the one hundred and tenth year, in diameter about the one 

 hundred and thirtieth year, and in volume about the one hundred 

 and fiftieth year. 



Table 19. — Comparative rate of volume, diameter . andheight grovjth of sugar pine and two 



of its common associates. 



Age. 



Species. 



Sugar pine. 



Yellow pine.i 



Incense eeclar. 



Diameter 

 breast 

 high. 



Height. 



Volume. 



Diameter 

 breast 

 high. 



Height. 



Volume. 



Diameter 

 breast 

 high. 



Height. 



Vol- 

 ume. 



Years. 

 20 

 40 

 60 

 80 

 100 

 120 

 140 

 160 

 180 

 200 

 220 

 240 

 260 

 280 

 300 

 320 

 340 

 360 

 380 

 400 



Inches. 

 0.2 

 2.5 

 7. 5 

 13.0 

 IS.l 

 22.7 

 26.8 

 30.5 

 33.9 

 37.0 

 40.0 

 42.5 

 44.9 

 47.2 

 49.3 

 51.4 

 53.5 

 55.5 

 57.3 

 59.1 



Feet. 

 8 

 23 

 45 

 72 

 92 

 106 

 118 

 127 

 135 

 142 

 148 

 153 

 158 

 162 

 167 

 171 

 174 

 177 

 180 

 ■ 183 



Board 

 feet. 



Inches. 

 2.3 

 6.5 

 11.4 

 16.1 

 20.0 

 23.3 

 25.8 

 28.0 

 29.8 

 31.3 



Feet. 

 12 

 29 

 57 

 79 

 94 

 104 

 112 

 118 

 123 

 127 



Board 

 feet. 



Inches. 



Feet. 



Board 

 feet. 







3.2 



6.4 



9.8 

 13.6 

 17.8 

 21.3 

 23.6 

 25.8 

 27.8 

 29.8 . 

 31.7 

 33.6 

 35.4 

 36.9 

 38.2 

 39.2 

 40.1 

 40.9 

 41.6 



::::::::::::::::i 







23 

 49 

 65 

 75 

 82 

 86 

 90 

 93 

 96 

 98 

 101 

 103 

 105 

 115 

 118 

 119 

 120 

 121 



70 



140 



230 



310 



390 



490 



600 



720 



850 



970 



1,090 



1,200 



1,290 



1,380 



1,440 



1,510 



110 



240 



490 



850 



1,290 



1,760 



2,250 



2,830 



3,460 



4.120 



4,840 



- 5,570 



6,020 



7.050 



7,740 



8,380 



9,010 



210 



360 



610 



890 



1,170 



1,430 



1,640 



































i 



























1 From Forest Service Bui. No. 69, "Sugar Pine and Western YeUow Pine in California," by Albert W. 

 Cooper. 



The average merchantable stand per acre of sugar pine varies 

 widely throughout its range. In general it ranges from 2,000 to 

 16,000 board feet, v/hich represents from 12 to 60 per cent of the 

 total stand. However, v/ithin the sugar pine-yellow pine type con- 

 siderable areas show an average of 20,000 feet per acre, representing 

 40 per cent of the whole 



Table 20. — Maximum stands of sugar pine within the sugar pine-yellow pine type in 



three localities. 



Locality. 



Western yel- i a,,^,^,. ,,,■•.,„ 

 low pine. Sugar pme. 



White fir. 



Incense cedar. 



Douglas fir. 



Total. 



Tahoe National 

 Forest 



Stanislaus Na- 

 tional Forest. 



Bd.ft. 

 11,030 

 13, 750 

 14, 688 



P.ct. 

 22.7 

 27.4 

 23.9 



Bd.ft. 

 18,440 

 20,700 

 20, 538 



P.ct. 

 37.9 

 41.2 

 33.4 



Bd.ft. 



7,174 



11,370 



19, 269 



P.ct. 

 14.8 

 22.6 

 31.4 



Bd.ft. 

 1,880- 

 4,430 

 6,904 



P.ct. 

 3.^ 

 8.8 

 11.3 



Bd.ft. 

 10, 050 



P.ct. 



20.7 



Bd.ft. 



48,574 

 50,250 

 61,399 



P.ct. 

 100 

 100 



Yosemite Na- 

 tional Park. . 







100 











