Service Forester's Handbook

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====== Specific Gravity by Species ======
===== Trees Per Acre by Diameter at Breast Height and Basal Area ======

^ Basal Area (Square Feet)                                      ^^^^^^^^^^^ 
^             ^ 20  ^ 30  ^ 40  ^ 50  ^ 60  ^ 70  ^ 80  ^ 90  ^ 100 ^ 110 ^
^ DB (Inches) ^ Trees Per Acre                                   ^^^^^^^^^^
^ 5           | 146 | 220 | 293 | 367 | 440 | 513 | 587 | 660 | 733 | 806 |
^ 6           | 102 | 153 | 204 | 255 | 306 | 357 | 408 | 458 | 509 | 560 |
^ 7           | 75  | 112 | 150 | 187 | 224 | 262 | 299 | 337 | 374 | 412 |
^ 8           | 57  | 86  | 115 | 143 | 172 | 201 | 229 | 258 | 286 | 315 |
^ 9           | 45  | 68  | 91  | 113 | 136 | 158 | 181 | 204 | 226 | 250 |
^ 10          | 37  | 55  | 73  | 92  | 110 | 128 | 147 | 165 | 183 | 202 |
^ 11          | 30  | 45  | 61  | 76  | 91  | 106 | 121 | 136 | 152 | 167 |
^ 12          | 25  | 38  | 51  | 64  | 76  | 89  | 102 | 115 | 127 | 140 |
^ 13          | 22  | 33  | 43  | 54  | 65  | 76  | 97  | 98  | 108 | 119 |
^ 14          | 19  | 28  | 37  | 47  | 56  | 65  | 75  | 84  | 94  | 103 |
^ 15          | 16  | 24  | 33  | 41  | 49  | 57  | 65  | 73  | 81  | 90  |
^ 16          | 14  | 21  | 29  | 36  | 43  | 50  | 57  | 64  | 72  | 79  |
^ 17          | 13  | 19  | 25  | 32  | 38  | 44  | 51  | 57  | 63  | 70  |
^ 18          | 11  | 17  | 23  | 28  | 34  | 40  | 45  | 51  | 57  | 62  |
^ 19          | 10  | 15  | 20  | 25  | 30  | 36  | 41  | 46  | 51  | 56  |
^ 20          | 9   | 14  | 18  | 23  | 28  | 32  | 37  | 41  | 46  | 50  |

Service Forester's Handbook

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