1. Intermountain Forest Tree Nutrition Cooperative
Nutrition Effects on Future Forest Productivity Harvest by Site Quality Study
Intermountain Forest Tree Nutrition Cooperative
“2013 Annual Meeting”
University of Idaho
Terry M. Shaw

2. Study Design Whole-Tree Bole-Only Low Slash High Slash No Slash
NEW RESEARCH INITIATIVE - Objectives
What site factors??? Light, moisture, temperature, Nutrients (PM)
No Slash
Veg-Control

3. High Slash w/veg control
Study Treatments
Block 1
Bole Only
Block 2
Whole Tree
Block 3
Block 4
High Slash
Low Slash
High Slash w/veg control
w/veg control
No Slash
NEW RESEARCH INITIATIVE - Objectives
What site factors??? Light, moisture, temperature, Nutrients (PM)

4. Plot Layout 21 Plot Monitoring Trees North Access Road Unit Boundary
Block 4
Whole Tree
Block 3
Bole Only
Block 1
Block 2
P19
P24
P22
P17
P18
P16
P14
P12
P13
P11 P8 P9
P10 P7 P6 P5 P3 P2 P1 P4
P21
P20
P15
P23  
21 Plot Monitoring Trees

5. Ash/Glacial/Quartzite
Study Sites
Site
Region/
Owner
Soil Parent Material
Site Quality
Canus
NEO/
Forest Capital
Ash/Loess/Basalt
High
Lovell
NID/
IDL
Loess/Quartzite
Low
Ruby
Potlatch
Loess/Ash/Quartzite
Slice
NEWA/
WADNR
Ash/Glacial/Quartzite
Phill
Bennett Lumber
Loon
USFS/Umatilla
Ash/Basalt
NEW RESEARCH INITIATIVE - Objectives
What site factors??? Light, moisture, temperature, Nutrients (PM)

6. Site Characteristics Site Site Index Basal Area Height QMD Volume
Cu/ft/ac
Bd/ft/ac
Canus 73
134 86
11.9
4,218
22,605
Lovell 77 80 68
11.6
2,224
11,736
Ruby 69
123
13.2
3,675
19,858
*Slice
57? 90 81
11.8
2,569
13,208
Phill 71 78 89
11.3
2,370
12,646
*Loon 70
130 93
11.5
4,195
19,263
*Does not include “Heritage “ leave trees.

7. FVS PROJECTED STAND BIOMASS
*Does not include “Heritage “ leave trees.

8. FVS-NUTCAL PROJECTED STAND NITROGEN
*Does not include “Heritage “ leave trees.

9. SITE SLASH RETENTION

10. SITE NITROGEN RETENTION

11. Retention (tons/acre)
Site Characteristics
Slash
Retention (tons/acre)
Volume
Site
WTH
BOH
Cu/ft/ac
Bd/ft/ac
Canus
11.3
17.3
4,218
22,605
Lovell
4.3
12.3
2,224
11,736
Ruby
7.1
19.6
3,675
19,858
Slice
8.5
14.7
2,569
13,208
Phill
6.1
9.6
2,370
12,646
Loon
10.5
25.3
4,195
19,263

12. Slice Above One-Year Caliper Growth

13. Slice Above One-Year Height Growth
P < 0.10

14. Canus Three-Year Caliper Growthb bc c a a a
P < 0.10

15. Canus Three-Year Height Growthb c c a a a
P < 0.10

16. Canus Three-Year Cumlative Mortality

17. Forest Soil Disturbance
0 = No compaction, depressions, displaced forest floor (FF)/soil displacement and erosion
1 = slight compaction, faint depressions, FF intact, slight soil structure (SS) change (crumbly to platy), slight erosion
2 = Compaction and depressions moderately deep, FF partially intact or missing, SS change continuous, erosion moderate
3 = Compaction and depressions deep, FF missing, SS change continuous-deep, erosion severe

18. Canus Three-Year Caliper and Height Growth by Forest Disturbance

19. Slice Above Soil Temperature and Moisture

20. Canus Soil Temperature by Treatment

21. Harvest by Site Quality Study SUMMARY
Plant Loon SP2013
Total Biomass (Carbon) and Nutrient Budget (above and below ground)
Surface Soil and Resin Capsule Nutrient Assessment
Long Term Growth Productivity Assessment
Soil-Site Disturbance Assessment