Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics...
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![Page 1: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/1.jpg)
Carbon and forest management
Robert Matthews
Forest Research
Biometrics, Surveys and Statistics Division
Alice Holt Research Station, Farnham
![Page 2: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/2.jpg)
Carbon and forest management
18 April 2008
• Human activity is interfering with the global carbon balance
• This is leading to climate change• The major causes are:• Burning fossil fuels• Deforestation.
The problem
![Page 3: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/3.jpg)
Carbon and forest management
18 April 2008
Burning fossil fuels
6.3 GtC y -1
Land-use change
(including deforestation)
1.6 GtC y -1
‘Enhanced’ vegetation
growth
3.0 GtC y -1
Ocean absorption
1.7 GtC y -1
Net accumulation:
3.2 GtC y 3.2 GtC y -1-1
Global carbon balance c. 1990-2000
![Page 4: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/4.jpg)
Carbon and forest management
18 April 2008
Additionality
It worksSaturationPermanence
Offsetting CO2 emissions by planting trees
![Page 5: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/5.jpg)
Carbon and forest management
18 April 2008
Atmospheric CO2
Woodybioma
ss
Non-woodybiomass
Woodylitter
Non-woodylitter
Soil organicmatter
WoodproductsProduct
decay
Stemthinning
andharvesting
Transfer ofresidues to soil
Soil decomposition
Natural mortalityThinningsHarvest debris
Photosynthesis (NPP)(from volume growth curve & expansion factors)
Woody litter decay Non-woody litter decay
Model-based evaluation - C-flow
![Page 6: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/6.jpg)
Carbon and forest management
18 April 2008
0
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0 10 20 30 40 50 60 70 80 90 100
Year
Carb
on o
ffset
(tC/
ha)
Standing
Model-based evaluation - CARBINE
![Page 7: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/7.jpg)
Carbon and forest management
18 April 2008
0
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0 25 50 75 100 125 150 175 200 225 250
Year
Car
bon
Sto
cks
(tC/h
a)
Trees
Products
Litter
Soil
Model-based evaluation - C-flow
![Page 8: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/8.jpg)
Carbon and forest management
18 April 2008
Forest soils
Wood products in landfill
Tree roots
Non-forest trees
Forest tree stems and branches
Wood products in use
UK forest carbon stocks
Roughly 100 MtC
![Page 9: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/9.jpg)
Carbon and forest management
18 April 2008
Forests, harvested wood and carbon
![Page 10: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/10.jpg)
Carbon and forest management
18 April 2008
Model-based evaluation - CARBINE
![Page 11: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/11.jpg)
Carbon and forest management
18 April 2008
0
100
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500
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0 10 20 30 40 50 60 70 80 90 100
Year
Carb
on o
ffset
(tC/
ha)
Material
Fuel
Standing
Model-based evaluation - CARBINE
![Page 12: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/12.jpg)
Carbon and forest management
18 April 2008
0
20
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0 10 20 30 40 50 60 70 80 90 100
Year
Carb
on o
ffset
(tC/
ha)
Standing
0
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300
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0 10 20 30 40 50 60 70 80 90 100
Year
Carb
on o
ffset
(tC/
ha)
Fuel
Standing
0
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1200
1400
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0 10 20 30 40 50 60 70 80 90 100
Year
Carb
on o
ffset
(tC/
ha)
Material
Fuel
Standing
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0 10 20 30 40 50 60 70 80 90 100
Year
Carb
on o
ffset
(tC/
ha)
Material
Fuel
Standing
Model-based evaluation - CARBINE(graphs on different scales to show details)
‘Carbon reserve’
‘Continuous cover’
Thin and fell
‘Energy forestry’
![Page 13: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/13.jpg)
Carbon and forest management
18 April 2008
0
200
400
600
800
1000
1200
1400
1600
1800
0 10 20 30 40 50 60 70 80 90 100
Year
Carb
on o
ffset
(tC/
ha)
Material
Fuel
Standing
0
200
400
600
800
1000
1200
1400
1600
1800
0 10 20 30 40 50 60 70 80 90 100
Year
Carb
on o
ffset
(tC/
ha)
Material
Fuel
Standing
0
200
400
600
800
1000
1200
1400
1600
1800
0 10 20 30 40 50 60 70 80 90 100
Year
Carb
on o
ffset
(tC/
ha)
Fuel
Standing
0
200
400
600
800
1000
1200
1400
1600
1800
0 10 20 30 40 50 60 70 80 90 100
Year
Carb
on o
ffset
(tC/
ha)
Standing
Model-based evaluation - CARBINE(graphs on same scales to permit comparison)
‘Carbon reserve’
‘Continuous cover’
Thin and fell
‘Energy forestry’
![Page 14: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/14.jpg)
Carbon and forest management
18 April 2008
Forest carbon management options
![Page 15: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/15.jpg)
Carbon and forest management
18 April 2008
>100%20%
Forest carbon sequestration +Forest sector management
UK0.15 GtC y-1)
2% 5%
20% with imports?
World(3.2 GtC y-1)
45%6%
World(25 GtC y-1)
Forest carbon management potential
![Page 16: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/16.jpg)
Carbon and forest management
18 April 2008
• Globally, forests play an important part in the carbon balance.
• Forests are also a renewable resource.• Options for mitigating climate change are:• Afforestation• Reforestation• Adjustments to forest management• Avoided deforestation• Targeted timber utilistation.
Conclusions (global)
![Page 17: Carbon and forest management Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham.](https://reader030.fdocuments.in/reader030/viewer/2022032600/56649dc85503460f94abe962/html5/thumbnails/17.jpg)
Carbon and forest management
18 April 2008
• UK forests can make a small but useful contribution.
• Carbon sequestration can be ‘hostage to fortune’.
• Emissions saved through (home grown or imported) wood are ‘banked’.
• Focus on use of wood at least as much as forest management.
• Role for imported wood?
Conclusions (UK)