Girdling Trees to Create Snags
(Activity: CWD Creation)
Project #001 - Girdling Trees to Create Wildlife Snags
This Stewardship Project requires services for removing bark and cambium from trees (girdling) at various locations on the Clackamas River Ranger District of the Mt. Hood National Forest in Clackamas County, Oregon. This girdling is meant to kill the tree and create a wildlife snag in the short term and Down Woody Debris (DWD) within ten years.
Trees to be girdled are in partially harvested young plantations or in un-harvested riparian reserves. This project work will be done within the boundaries of the units of the Quarry Thin timber sale or in the un-treated riparian reserves directly adjacent to the units. The boundaries of these units will be designated with blue timber harvest signs, orange tree tags and white paint.
Target Tree Details
|
Payment Units |
Acres | Trees To be girdled in tagged unit (including skips), except within 25ft of a yellow marked tree) | Trees to be girdled in no-cut riparian areas outside of tagged unit | Average spacing in thinned portion of stand (except within 25 ft. of yellow marked tree) | Average spacing within no-cut Riparian Areas | Target DBH* Range and Species (DF=Douglas-fir) |
| 100 |
10 |
30 |
N/A |
121 |
N/A |
DF Only |
|
10-15” |
||||||
| 102 |
12 |
12 |
N/A |
209 |
N/A |
DF Only |
|
15-20” |
||||||
| 104 |
57 |
57 |
N/A |
209 |
N/A |
DF Only |
|
15-20” |
||||||
| 108 |
27 |
27 |
N/A |
209 |
N/A |
DF Only |
|
20-25” |
||||||
| 112 |
8 |
8 |
N/A |
209 |
N/A |
DF Only |
|
15-20” |
||||||
| 114 |
8 |
8 |
N/A |
209 |
N/A |
DF Only |
|
20-25” |
||||||
| 116 |
27 |
27 |
N/A |
209 |
N/A |
DF Only |
|
15-20” |
||||||
| 118 |
27 |
27 |
N/A |
209 |
N/A |
DF Only |
|
20-25” |
||||||
| 120 |
26 |
26 |
N/A |
209 |
N/A |
DF Only |
|
20-25” |
||||||
| 121 |
12 |
36 |
N/A |
121 |
N/A |
DF Only |
|
10-15” |
||||||
| 122 |
22 |
22 |
22 |
209 |
89 |
DF Only |
|
20-25” |
||||||
| 124 |
14 |
14 |
14 |
209 |
125 |
DF Only |
|
20-25” |
||||||
Totals |
250 | 294 | 36 | N/A | N/A | N/A |
*Due to safety issues or natural variation in stand sizes, there may be instances where girdling would need to occur above or below this range. Trees chosen for girdling should be representative of the largest DBH’s of the stand, excluding residual old-growth.