Service Forester's Handbook

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
====== Seed Tree Spacing ======
^ Seed Trees    ^^ Spacing Between Trees ^^^
^ Acre ^ Hectare ^ Chains ^ Feet ^ Meters  ^
| 4    | 10      | 1.58   | 104  | 31      |
| 5    | 12      | 1.41   | 93   | 28      |
| 6    | 15      | 1.29   | 85   | 26      |
| 7    | 17      | 1.20   | 79   | 24      |
| 8    | 20      | 1.12   | 74   | 23      |
| 9    | 22      | 1.05   | 69   | 21      |
| 10   | 25      | 1.00   | 66   | 20      |
| 11   | 27      | 0.95   | 63   | 19      |
| 12   | 30      | 0.91   | 60   | 18      |
| 15   | 37      | 0.82   | 54   | 16      |
| 20   | 49      | 0.71   | 47   | 14      |
| 25   | 62      | 0.64   | 42   | 13      |

===== Minimum Recommended Number of Seed Trees =====
^ DBH ^ Shortleaf ^ Loblolly ^ Slash ^ Longleaf<sup>2</sup> ^ Virginia ^
| 9   |           |          |       |                      | 6        |
| 10  | 20        | 12       | 12    | 55                   | 5        |
| 12  | 14        | 9        | 9     | 38                   | 4        |
| 14  | 12        | 6        | 6     | 28                   | 4        |
| 16+ | 12        | 4        | 4     | 21                   | 4        |

<sup>1</sup> Needed for satisfactory regeneration\\
<sup>2</sup> Shelterwood - 30 square feet basal area

===== Specific Gravity by Species =====
^              ^                  ^                      ^ Specific Gravity  ^^
^ Pine Species ^ Mean Age (years) ^ Mean d.b.h. (inches) ^ Range       ^ Mean ^
^ Loblolly     | 47               | 14.8                 | .38 to .68  | .51  |
^ Longleaf     | 50               | 11.7                 | .40 to .75  | .57  |
^ Shortleaf    | 58               | 12.2                 | .37 to .72  | .52  |
^ Slash        | 30               | 11.0                 | .41 to .70  | .53  |
^ Sand         | 48               | 9.1                  | .41 to .65  | .48  |
^ Virginia     | 44               | 9.8                  | .40 to .60  | .50  |
^ White        | 48               | 15.6                 | .25 to .54  | .35  |

SEFES Paper #45
Service Forester's Handbook

User Tools

Site Tools

Page Tools
