20 40 O 8O IOO ISO 140 160 ISO 2OO 22O 



/JGF DFD/SH 



Fio. 40. Diagram showing diameter growth of oppressed trees at various heights from ground in Michigan. 



240 



TABLE VI. Acre yields of White Pint and measurements of sample trees. 



A.-MICHIGAN : 



(1) SITE a: 



Presque Isle County. 

 [700 to 800 feet above sea 1,'vel.] 



Sample area : 1 acre. 



Soil Yellow or gray sand, moderately loose, deep ; subsoil with small stoues, surface cover of Age of pine : 100 to 150 years. 



brakes, huckleberry, etc., Density of crown cover: 0.6. 



Foreit conditions: Ked'Pine (61 per cent), mixed wiih White Tine (36 percent), and occasional 



Maple, Poplar, Cedar 13 per cent), on level. Number of trees: 181. 



Olcutitication White Tine. Bed Pine. 



Dominant percent.. 40 



Oppressed do.... 27 



Suppressed do.... 43 28 



ACRE YIELD. 



Total yitld : Pine, 32,650 feet B. M., of which Whit* Pine 44 per cent. 

 Average annual accretion: Whit* Pine, 57 cubic feet. 



272 feet B. M. 



