Rapid Assessment of Relative Density in Mixed-Species Stands of the Northeastern United States

Table 1

Critical distances and required “push’’ for sampling with a stand density factor (SDF) of 50, using a basal area factor (BAF) 4 m²/ha prism. When the “push’’ is shown as negative, the prism must be pulled back across the point.

DBH, cm	BAF=4 Critical Distance, m	SDF=50 Critical Distance, m	Required Push, m
5	1.25	2.20	0.95
10	2.50	3.83	1.33
15	3.75	5.30	1.55
20	5.00	6.67	1.67
25	6.25	7.98	1.73
30	7.50	9.23	1.73
35	8.75	10.44	1.69
40	10.00	11.62	1.62
45	11.25	12.77	1.52
50	12.50	13.89	1.39
55	13.75	14.99	1.24
60	15.00	16.07	1.07
65	16.25	17.14	0.89
70	17.50	18.18	0.68
75	18.75	19.21	0.46
80	20.00	20.23	0.23
85	21.25	21.24	−0.01
90	22.50	22.23	−0.27
95	23.75	23.21	−0.54
100	25.00	24.19	−0.81