Vegetation Management Alternatives

Section IV. What are the social Issues associated with using silviculturally effective alternatives?

Dr. Stephen Wyatt

Université de Moncton, campus d'Edmundston

This section will summarize of the social issues associated with the use of vegetation management alternatives.

Published literature will be reviewed and summarized.

What are the cost implications? What are the social Issues?

Vegetation Management AlternativesSection V. What are the cost implications of silviculturally

effective alternatives?

F. Wayne Bell, Jenn Dacosta, Andree Morneault, Bill Towill, John Winters, and Al Stinson, Ontario Ministry of Natural ResourcesChander Shahi, Krishna Homagain, Nancy Luckai, and Jason Dampier, Lakehead UniversityMagaret Penner, Forest Analysis Ltd.

What are the cost implications?Background

Very few studies have examined the cost effectiveness of vegetation management alternatives in North American boreal forests.

What are the cost implications?Approach

Stand level analysis

Stage I: Collect field data and develop longer-term growth models

Stage II: Benefit-cost analysis (BCA)

Six studies, 14 site/treatment combinations with 100 experimental units

Located across the Planning Area of Ontario

Include white spruce, black spruce, and jack pine

Established between 1990 and 1994

What are the cost implications?Stage I – Growth and Yield

Six studies, 14 site/treatment combinations with 100 experimental units

Include white spruce, black spruce, and jack pine

Established between 1990 and 1994

What are the cost implications?Stage I – Growth and Yield

What are the cost implications?Stage I – Growth and Yield

ID Pre-disturbance vegetation type

Design # of 20m2 transects,

m2/ exp.unit

Treatments n

Sw1 Block 1 = V-7*;Block 2 = V-5*;Block 3 = V-28*

RCBD;3 blocks

6, 120 1 rep/blockBRU, CON, REL, SIL, VIS

15

Sb1 V-17* CRD 4, 80 3 reps ofBRU, CON, CRV, VIS

12

Sb2 V-4* RCBD;3 blocks

3, 60 1 rep/blockCON, CRV, RHV, SGV

12

Sb3 V-14* RCBD;3 blocks

3, 60 1 rep/blockBRU, CON, CRV, EZV, RHV, TLR

18

Pj1 V-173 RCBD;4 blocks

6, 120 1 rep/blockBRU, CON, CRV, VIS

16

Pj2 Block 1 = V-18†

Block 2 = V-17†

Block 3 = V-17†

RCBD;3 blocks

4, 80 1 rep/blockBBR, BRR,BRU, CON, CRV,

MBV, VIS

21

*Taylor et al. 2000. FEC for NEO †Sims et al. 1989.FEC for NOW

Red lettering indicates a site with aerial application of either Vision or Release

What are the cost implications?Stage I – Growth and Yield

Untreated controlUntreated control

BrushsawBrushsaw

Basal barkBasal bark

Mist blowerMist blower

Aerial sprayAerial spray

Annual removal glyphosate 5 yrsAnnual removal glyphosate 5 yrs

What are the cost implications?Domtar (E.B. Eddy) study

What are the cost implications?Domtar (E.B. Eddy) study

What are the cost implications?Domtar (E.B. Eddy) study

What are the cost implications?Stand-level Modeling

Inputs were compiled by study and treatmentInputs were compiled by study and treatment

For plantations the inputs were taken from the data collection For plantations the inputs were taken from the data collection and include planted stock species, density and Dbhq and and include planted stock species, density and Dbhq and ingress species composition, density and Dbhq. ingress species composition, density and Dbhq.

Projections using yield curves are based on empirical Projections using yield curves are based on empirical relationships fit to data collected from permanent sample plots relationships fit to data collected from permanent sample plots in Ontario and Quebec (Penner et al., 2008). in Ontario and Quebec (Penner et al., 2008).

Gross merchantable volumes were calculated using the Gross merchantable volumes were calculated using the minimum standards in the Ontario Ministry of Natural minimum standards in the Ontario Ministry of Natural Resources scaling manual (OMNR, 1995).Resources scaling manual (OMNR, 1995).

Benefit-Cost Ratio (BCR)Benefit-Cost Ratio (BCR) - present value of the benefits - present value of the benefits expected throughout the life of a management option or expected throughout the life of a management option or project, divided by the present value of the costsproject, divided by the present value of the costs

That is:That is:

n

t

tt

n

t

tt

rC

rBBCR

0

0

)1(

)1(

What are the cost implications?Stage II – Economic Analysis

Vision

$126.10 ha-1

10.77 m3ha-1

$12.16 m-3

Release

$183.75 ha-1

16.58 m3ha-1

$12.18 m-3

Brushsaw

$367.46 ha-1

9.58 m3ha-1

$38.38 m-3

Silvana

$514.37 ha-1

12.16 m3ha-1

$42.65 m-3

Cost effectiveness ($ m-3)

What are the cost implications?Stage II – Economic Analysis