Intermountain Forest Tree Nutrition Cooperative“2013 Annual Meeting”

University of IdahoTerry M. Shaw

Nutrition Effects on Future Forest Productivity Harvest by Site Quality Study

Study Design

No Slash Veg-Control

Whole-TreeLow Slash

Bole-OnlyHigh Slash

Study Treatments

Block 1Bole Only

Block 2Whole Tree

Block 3Bole Only

Block 4Whole Tree

High Slash Low Slash High Slash Low Slash

High Slash Low Slash High Slash Low Slash

High Slash Low Slash High Slash Low SlashHigh Slash

w/veg controlLow Slash

w/veg controlHigh Slash

w/veg controlLow Slash

w/veg control

No Slash No Slash No Slash No SlashNo Slash

w/veg controlNo Slash

w/veg controlNo Slash

w/veg controlNo Slash

w/veg control

Plot Layout

North

Access RoadUnit Boundary

Block 4Whole Tree

Block 3Bole Only

Block 1Bole Only

Block 2Whole Tree

P19

P24

P22

P17

P18

P16

P14

P12

P13 P11

P8

P9

P10P7

P6

P5 P3

P2 P1

P4

P21

P20

P15

P23

21 Plot Monitoring Trees

Study Sites

SiteRegion/Owner

Soil Parent Material

Site Quality

CanusNEO/

Forest Capital Ash/Loess/Basalt High

LovellNID/IDL Loess/Quartzite Low

RubyNID/

Potlatch Loess/Ash/Quartzite Low

SliceNEWA/WADNR Ash/Glacial/Quartzite Low

Phill

NID/Bennett Lumber Ash/Loess/Basalt High

LoonNEO/

USFS/Umatilla Ash/Basalt High

Site Characteristics

SiteSite

IndexBasal Area

SiteHeight QMD

Volume

Cu/ft/ac Bd/ft/acCanu

s 73 134 86 11.9 4,218 22,605Lovel

l 77 80 68 11.6 2,224 11,736

Ruby 69 123 80 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*Loo

n 70 130 93 11.5 4,195 19,263

*Does not include “Heritage “ leave trees.

FVS PROJECTED STAND BIOMASS

Canus Lovell Ruby *Slice Phill *Loon0

1020304050607080Branches < 3" Foliage Branches > 3" Unmerch Merch

TON

S/AC

RE

*Does not include “Heritage “ leave trees.

FVS-NUTCAL PROJECTED STAND

NITROGEN

*Does not include “Heritage “ leave trees.

Canus Lovell Ruby *Slice Phill *Loon0

20

40

60

80

100

120

140Unmerch Branches < 3" Branches > 3" Foliage Merch

LBS/

ACR

E

SITE SLASH RETENTION

WTH BOH

WTH BOH

WTH BOH

WTH BOH

WTH BOH

WTH BOH

CANUS LOVELL RUBY SLICE PHILL LOON

0100002000030000400005000060000

0-1/4" 1/4-1" 1-3" >3"

LBS/

ACR

E

SITE NITROGEN RETENTION

WTH BOH WTH BOH WTH BOH WTH BOH WTH BOH WTH BOHCANUS LOVELL RUBY SLICE PHILL LOON

0102030405060708090 0-1/4" 1/4-1" 1-3" >3"

LBS/

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

00.20.40.6

0.8

11.2

NO SLASH NO SLASH VEG

WTH (LOW SLASH)

WTH (LOW SLASH)

VEG

BOH (HIGH SLASH)

BOH (HIGH SLASH)

VEG

Mill

imet

ers

Slice Above One-YearCaliper Growth

a

bb

a aa

P < 0.10

0123456789

NO SLASH NO SLASH VEG

WTH (LOW SLASH)

WTH (LOW SLASH)

VEG

BOH (HIGH SLASH)

BOH (HIGH SLASH)

VEG

Cent

imet

ers

Slice Above One-YearHeight Growth

abb

bb

c

P < 0.10

02468

101214

NO SLASH NO SLASH VEG

WTH (LOW SLASH)

WTH (LOW SLASH)

VEG

BOH (HIGH SLASH)

BOH (HIGH SLASH)

VEG

Mill

imet

ers

Canus Three-YearCaliper Growth

a

cbcb

aa

P < 0.10

0

10

20

30

40

50

NO SLASH NO SLASH VEG

WTH (LOW SLASH)

WTH (LOW SLASH)

VEG

BOH (HIGH SLASH)

BOH (HIGH SLASH)

VEG

Cent

imet

ers

Canus Three-YearHeight Growth

a

ccb

aa

P < 0.10

01020304050607080

NO SLASH NO SLASH VEG

WTH (LOW SLASH)

WTH (LOW SLASH)

VEG

BOH (HIGH SLASH)

BOH (HIGH SLASH)

VEG

# Tr

ees

Canus Three-YearCumlative Mortality

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

0

2

4

6

8

10

NO (0) LOW (1) MODERATE (2) HIGH (3)

Calip

er (m

m)

Canus Three-YearCaliper and Height Growth

by Forest Disturbance

Disturbance

0

5

10

15

20

25

30

35

NO (0) LOW (1) MODERATE (2) HIGH (3)

Hei

ght (

cm)

Slice Above Soil Temperature and

Moisture

Canus Soil Temperatureby Treatment

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