forest mitigation delivering carbon benefits | mike perks
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Forest Mitigationdelivering carbon benefits
Dr Mike PerksCentre for Forestry & Climate Change
With contributions from:Bruce Nicoll, Robert Matthews,
James Morison, Tim Randle, Juan Suarez, Elena Vanguelova, Sirwan Yamulki & Miriam White
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Forest carbon mitigation
Forestry delivers multiple benefits to society
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Forest carbon mitigation
Sustainable Forest Management
Economic, Social & Environmental Goals
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Forest carbon mitigation
Forests sequester carbon (CO2) & provide other ecosystem services
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Forest carbon mitigation
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Forest carbon mitigation
Measuring forest carbon fluxes: eddy-covariance
Assessment of short rotation forestry in Fife
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Forest carbon mitigation
Trees and forest soils lock up
carbon
NEE
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Forest carbon mitigation
17–21 year old Sitka spruce evergreen.Annual total
removal of CO224 tonnes per
hectare per year.
72–80 year old oak & mixed deciduous.Annual total
removal of CO215 tonnes per
hectare per year.
Griffin and Alice Holt Forests
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Forest carbon mitigation
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0 10 20 30 40 50 60 70 80 90 100 110 120 130 140S t a nd a ge ( y e a r s)
Booklet 48 style
… with 7 year cycle
Extended MT thinning(selection)
‘ATC’ (shelterwood) Restock ...
Linking models together M1-CSORT
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Forest carbon mitigation
Research approach: review existing information
Soil carbon stock in different soil groups
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Podzols BrownEarths
Groundwater gleys
Surfacewater gleys
Rendzinasand rankers
Peaty gleys Deep peats
Soil groups
Tota
l C s
tock
(t C
O2 h
a-1)
Carbon sector modelling
Ecophysiologicalmonitoring
Systems analyses
CARBINE
National monitoring
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Forest carbon mitigation
Research outputs: process illustrationsEstablishment ‘Old-growth’
Thinning Clearfell
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Forest carbon mitigation
Matthews & Broadmeadow
10,000 ha for 15 years
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Forest carbon mitigation
Matthews & Broadmeadow
Biomass –replacing fossil fuels
Different objectives and strategies: all +ve
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Forest carbon mitigation
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Forest carbon mitigation
Combating Climate Change “Read Report”(2009)
“Forests remove CO2 from the atmosphere…
Forestry could make a significant contribution to meeting the UK’s challenging emissions reductions targets…
Woodland creation highly cost-effective and achievable abatement…
Woodland creation programme would help to reverse the decline in CO2 uptake by UK forests.
Existing UK forests, including soils, are a large store of C…
Sustainable Forest Management can maintain the C store of a forest…”
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Forest carbon mitigation
“All our research points to the fact that forestry can make a significant and cost-effective contribution to meeting the UK’s challenging emissions reduction targets.”Prof Sir David Read (FRS)Combating Climate Change: A role for UK forests
100 million trees“Scotland will plant 100 million trees by 2015 as part of a drive to cut emissions.” Scottish Government March 2010
“… this tree planting initiative will make an important contribution to reducing global emissions…through either directly absorbing CO2 or by providing more sustainable materials for construction and renewable energy.” Stewart Stevenson, Minister for Transport, Infrastructure and Climate Change
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Forest carbon mitigation
When do we make the changes?
What species & management regimes do we choose for
the future?
Where should we plant the expanding forest?
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Forest carbon mitigation
“Forest nature reserve”
“Close-to-nature forestry”
“Combined objective”
“Intensive even aged”
“Wood Biomass”
‘Forest Management Alternatives’ Concept
www.Tropenwald.org
www.reiserat.de
ecological or social services
reve
nue
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Forest carbon mitigation
C Stocks in UK trees - soil
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In most woodlands, more C in soil than in trees, particularly the organic soils
(BioSoil Survey, 2007, Vanguelova et al.)
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Rendzin
as an
d Ran
kers
Brown e
arths
Podzo
ls and
Ironp
ans
Surfac
e wate
r gleys
Ground w
ater g
leys
Peaty
gleys
/podzo
ls
Deep pe
atsSo
il C
sto
ck (t
CO
2 ha-1
)
organicmineral
(to 80 cm)
Tree stock
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Forest carbon mitigation
BioSoil plots in UK
Peaty Gleysoil
Coniferous Broadleaf
(BioSoil Survey, 2007, Vanguelova et al.)
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Forest carbon mitigation
Definitive Statement on UK research & evidence for forestry
• available 2011 as FR Monograph
• includes full GHG budgets
(as available)
• Highlights future research questions
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Forest carbon mitigation
•Forests are a reliable way to lock up and store carbon •Woodland creation is a cost-effective abatement (or mitigation) measure•There are many co-benefits of woodland creation•High up-front costs•Delivers abatement in the long term - not the first two-three budget periods
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Forest carbon mitigation
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Forest carbon mitigation
Create robust
standards
Forest carbon measurement protocols and
tools
Approved verification
bodies to provide assurance
Establish pilot woodland carbon
projects
Create a project registry
WCC processes
13 projects in the WCC register 610 hectares 315,000 tCO2e over their lifetime (up to 100 years).
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Forest carbon mitigation
Additionality: The carbon sequestration would not haveoccurred without the input of carbon finance:
• Legal test: the planting is not required by law and is not compensatory planting
• Financial test:Carbon finance makes the project viableWoodland grants must not cover more than 85% of project planting, establishment and management costs
Permanence: The carbon sequestration is permanent• Risks assessed and minimised• ‘Buffer’ of unclaimed carbon must be added to a shared
‘pool’• WCC soils: account for losses (year 1) dependent on soil
carbon content
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Forest carbon mitigation
• WCC soils approach
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Forest carbon mitigation
• WCC soils approach
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Forest carbon mitigation
Construct a framework that may support a
future market for woodland carbon
credits in the
Reassure the market and
investors about voluntary
woodland carbon projects
Offer clarityand
transparency to customers
Provide rigorouscarbon
measurement protocols
Encourage a consistentapproach to
woodland carbon projects
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Forest carbon mitigation
Drought Water-logging
Pest and Disease
Weakened Ecosystem
Fire Wind
Climate Suitability of Species(Decrease Biodiversity)
Increase Temperature+ +
Ecosystem Vulnerabilities
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Forest carbon mitigation
Aberfoyle time sequence…
Age 48 year 201712 years after the storm the stand reaches the same levels of carbon than in
2006BUT
stand structure is substantially different…
Storm in January 2006
Remote Sensing: windthrow impacts
UNDERSTANDING RISK: WIND
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Forest carbon mitigation
A clear need for more woodlands
Enhanced planting of 23,000 ha per year over next 40 years could by 2050 abate 10% of GHG emissions
• Technically feasible – if challenging
• All options cost-effective
• Rapid growing conifers and energy crops best
• But native mixed woodlands still only £41 per tonne CO2