Attach_1_SILVICULTURAL_SUMMARY_PRES.pdf

Attachment 1

Solicitation AG-82AT-S-13-0009

Tree Thinning Services IDIQ

SILVICULTURAL SUMMARY PRESCRIPTION

EXAMPLE

Treatment Units:

Line Item 1: 1,2,3,4,5,6,7,8,9,10,11

Line Item 2: 14,15,16,17

Line Item 3: 27

Silvicultural Goal and Desired Condition

Improve forest health though stocking control by retaining the best quality crop trees and cutting of inferior trees. Reduction of mistletoe. Modification of wildfire behavior through reduction of ladder fuels, canopy structure and fuel reduction.

Inspection

Inspection Method 1 (E.2.3.1) shall be used to calculate quality and payment

End Result- specifics

1. Tree Thinning

Leave tree selection: These trees are within the range of diameters that are taller than the minimum tree height to cut and smaller than the maximum dbh to cut:

The average spacing for leave trees is 12 x 12. The spacing between leave trees may range between 9 feet and 15 feet to facilitate the selection of the best trees based on the prescription and characteristics of desirable trees.

Acceptable stocking density:

Trees per Acre: 300 minimum; 400 maximum

Species Preference: Listed in order of preferred retention

1. Engelmann Spruce

2. Limber Pine

3. Lodgepole Pine

4. Douglas fir

5. Sub-alpine fir

Maximum DBH available to cut: 6.0” These trees will be considered as part of the spacing and final stocking.

Minimum height available to cut: 2’ Trees below this height will be considered neither part of the spacing nor part of the final stocking.

Attachment 1

Solicitation AG-82AT-S-13-0009

Tree Thinning Services IDIQ

Trees with DBH ≥ the Maximum DBH to cut: These trees will be considered as part of the spacing and final stocking.

Trees that are to be ignored (not to be cut): Aspen. These trees will be considered neither part of the spacing nor part of the final stocking.

Trees that are not acceptable for leave trees (shall be cut): See section C.2-Unsatisfactory tree.

Maximum stump height: 6”

Insect, Disease and Animal Damage: Leave Trees must be free of dwarf mistletoe and free from insect and/or other disease damage.

2. Girdling NOT APPLICABLE

3. Pruning NOT APPLICABLE

4. Release NOT APPLICABLE

5. Slash Treatment: Lop and scatter all existing and created slash except for an area 50 feet immediately inside the boundary. In that area all existing and created slash shall be piled according to C.4.6.5

6. Special Treatment Areas: NOT APPLICABLE

7. Salvage: NOT APPLICABLE

8. Other desired contract results or requirements:

9. Boundary Description: The exterior boundaries of the treatment units are marked with three painted vertical stripes, one facing into the treatment unit and two side stripes facing adjacent boundary trees. Boundaries will be marked on all sides with ORANGE paint and occasional yellow plastic signs with the unit number. Signs with the TU number are posted periodically along the painted boundary.