Vision for a Renewable Scotland: Are We All Better Together? | Iain Staffell
Willie mc ghee biomass
1. Carbon Accounting for Scottish Biomass Contact Willie McGhee, Director BioClimate Research & Development 18b Liberton Brae Edinburgh UK EH16 6AE Tel: +44 (0)131 672 3782
2. Experience with carbon accounting Director :– BioClimate Research and Development Ltd. (Plan Vivo Foundation) (2001-present) Project development, carbon standards, Director :- Borders Forest Trust (Environmental NGO) (1996-present) Carbon sales in the voluntary market from afforestation Supply Manager :- Green ergy Bioenergy, supply of woody biomass for energy production (2006 – January 2009) Bioenergy supply Founder & Managing Director :- Edinburgh Centre for Carbon Management (1996-2006) Forestry and land use change carbon consultancy, research and project development Trustee :- Scottish Forestry Trust:- Forestry research Trustee :– Scottish Power Green Energy Trust, Small scale renewable energy grant awards
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6. Woody biomass and climate change 1. Uptake in new growth forest planting, regeneration 2. Enhance sink of existing forests fertilisation 3. Reduce emissions from existing forests continuous cover 4. Reduce deforestation longer rotations 5. Increase storage in products new timber products 6. Materials and FF substitution substitution bioenergy Intact Forest Products 1 2 3 4 5 6
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10. Modelling carbon in trees and forests Atmospheric carbon Woody biomass Non-woody biomass Wood products Dead wood and litter Soil organic matter
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14. DEWAR, R.C. AND CANNELL, M.G.R. (1992) Carbon sequestration in the trees, products and soils of forest plantations: an analysis using UK examples. Tree Physiology 11, 49-71 Modelling carbon in trees and forests
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17. Modelling carbon in trees and forests A summary of the carbon exchange (in tonnes of carbon per hectare per year) associated with the main components of oak woodland (general yield class 6 m3 ha-1 yr-1) at the Straits Enclosure flux station in Hampshire. For comparison with the value for increment given here (4.0 tC ha-1 yr-1), a value of 3.8 tC ha-1 yr-1 was obtained for net ecosystem exchange in 2000 using eddy correlation. Note that the quantity of carbon added to the soil carbon stock on an annual basis is unknown and, if significant, would reduce the quantity of carbon lost through litter decay. Adapted from BROADMEADOW, M AND MATTHEWS, R.W. (2003) Forests, Carbon and Climate Change: the UK Contribution Research Information Note, Forestry Commission, Edinburgh Respiration 5.9 Net increase in soil carbon ? New litter input from Foliage 2.0 Seeds 0.6 Wood 1.1 Understorey 0.4 Total 4.1 Net primary productivity (new biomass) 14.0 – 5.9 = 8.1 Net removal of CO2 from atmosphere 14.0 - 5.9 – 4.1 = 4.0 Decay of litter 4.1 - ? = ? Gross primary productivity (photosynthesis) 14.0 Increment (net biomass accumulation) to Stem wood 2.7 Roots 0.5 Branches 0.5 Shrubs 0.3 Total 4.0
18. Uncertainties in data Robert Matthews Forest Research Biometrics, Surveys and Statistics Division Alice Holt Research Station, Farnham
25. Thank you Contact Willie McGhee, Director BioClimate Research & Development 18b Liberton Brae Edinburgh UK EH16 6AE Tel: +44 (0)131 672 3782
Editor's Notes
C-FLOW input data - a) areas of new planting, b) stem growth and harvesting Parameter values – 1. stemwood, foliage, branch & root masses, 2. decomposition rates of litter, soil carbon & wood products
