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TABIF 16. TREE DENSITY DATA -ASPEN WOODLAND VEGETATION TYPE, PEABODY SENECA II-W MINE EXPANSION AREA, 1990 <br />PLANT SPECIES Stems per 250 sq. m AVG. • / <br />Sample Number 1 2 3 4 5 8 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 8 1 7 1 6 1 9 20 21 22 23 24 25 26 27 28 29 30 250 sq. m <br />Populus tremuloides' 204045 63816 32920322619383014123216 5441730 933472821271235 24.8 <br />Populus tremuloides -DEAD 9 2 5 2 1 1 4 2 20 1 1 8 1 5 5 1 7 0 6 5 1 5 0 1 3 4 0 0 12 6 1 5 20 22 9 6.0 <br />Populus tremuloides - SEEDLJNGS 7 4 1 5 6 6 1 8 1 0 2 5 6 9 5 0 0 9 3 6 7 0 9 1 4 6 6 0 1 1 0 6 4.9 <br />TOTAL STEMS PER 250 sq.m 36 46 51 11 46 25 18 37 32 54 32 43 60 40 31 12 49 24 26 51 30 43 10 37 67 40 36 58 34 50 <br />' Ages varied from 70 years to 115 years, 10 cm ro 32 em diameter at breast height. <br />37.6 <br />Std. Dev. <br />(~-1) <br />14.5 <br />• Pa~f1 • <br />