1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting...
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Transcript of 1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting...
![Page 1: 1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting 18./19.05.2006.](https://reader035.fdocuments.in/reader035/viewer/2022062619/551531a85503465e608b5a31/html5/thumbnails/1.jpg)
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Stocks of biomass / CStocks of biomass / Csoil organic mattersoil organic matter
Expert meeting on land use and Ecosystem accounting 18./19.05.2006
![Page 2: 1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting 18./19.05.2006.](https://reader035.fdocuments.in/reader035/viewer/2022062619/551531a85503465e608b5a31/html5/thumbnails/2.jpg)
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outlineoutline
• Why organic matter• The accounting perspective• What we have and what we need• The soil perspective
![Page 3: 1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting 18./19.05.2006.](https://reader035.fdocuments.in/reader035/viewer/2022062619/551531a85503465e608b5a31/html5/thumbnails/3.jpg)
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Why organic matterWhy organic matter
![Page 4: 1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting 18./19.05.2006.](https://reader035.fdocuments.in/reader035/viewer/2022062619/551531a85503465e608b5a31/html5/thumbnails/4.jpg)
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Why organic matterWhy organic matter
• Climate change debate• Soil as a sink or source• Biomass as an indication for carbon
sequestration• For environment relevant to reduce
greenhouse gases• For economic sector relevant for
emission trading
![Page 5: 1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting 18./19.05.2006.](https://reader035.fdocuments.in/reader035/viewer/2022062619/551531a85503465e608b5a31/html5/thumbnails/5.jpg)
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The accounting perspectiveThe accounting perspective
• Stocks• Stock change• Flows• Ecosystem functions• Ecosystem goods and services• Assessment of human activities which
influence the provided goods and services
• Political process
![Page 6: 1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting 18./19.05.2006.](https://reader035.fdocuments.in/reader035/viewer/2022062619/551531a85503465e608b5a31/html5/thumbnails/6.jpg)
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What we have and what we needWhat we have and what we need
• Soil map in scale 1:1mio• Representative profiles for the main
soil types of Europe• Properties (without time dimension)• Accounting for GHG reporting
• Stocks and stock changes• And …….
![Page 7: 1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting 18./19.05.2006.](https://reader035.fdocuments.in/reader035/viewer/2022062619/551531a85503465e608b5a31/html5/thumbnails/7.jpg)
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The soil perspective / specificsThe soil perspective / specifics
• Soil influence many processes• As the ‘basic’ medium often defined as
contributor to other processes• Processes slower than in other media (e.g.
flow velocity) => long time memory• Soil science has a history from agriculture• Soil surveys in the past are not targeted
to actual questions (e.g. sampling)
![Page 8: 1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting 18./19.05.2006.](https://reader035.fdocuments.in/reader035/viewer/2022062619/551531a85503465e608b5a31/html5/thumbnails/8.jpg)
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Soil ?Soil ? Legend unit
ST A 70%
ST B 20 %
ST C 10%
Horizon description
Organic matter content from 8-12%
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Soil ?Soil ?
![Page 10: 1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting 18./19.05.2006.](https://reader035.fdocuments.in/reader035/viewer/2022062619/551531a85503465e608b5a31/html5/thumbnails/10.jpg)
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Soil ?Soil ?
Soil sampling protocol to certify the change of organic carbon stock in mineral soils, JRC 2005
![Page 11: 1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting 18./19.05.2006.](https://reader035.fdocuments.in/reader035/viewer/2022062619/551531a85503465e608b5a31/html5/thumbnails/11.jpg)
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Soil, what we haveSoil, what we have
Carbon losses from all soils across England and Wales1978-2003Pat H. Bellamy, Peter Loveland et all. (nature, 2005)
![Page 12: 1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting 18./19.05.2006.](https://reader035.fdocuments.in/reader035/viewer/2022062619/551531a85503465e608b5a31/html5/thumbnails/12.jpg)
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Soil, what we haveSoil, what we have
Carbon losses from all soils across England and Wales1978-2003Pat H. Bellamy, Peter Loveland et all. (nature, 2005)
![Page 13: 1 Stocks of biomass / C soil organic matter Expert meeting on land use and Ecosystem accounting 18./19.05.2006.](https://reader035.fdocuments.in/reader035/viewer/2022062619/551531a85503465e608b5a31/html5/thumbnails/13.jpg)
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Soil, what we haveSoil, what we have
Europe’s terrestrial biosphere absorbs 7 -1 12 % of European anthropogenic CO2 emissionsJanssens, Ivan et al. 2003: science 2003
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Soil, what we haveSoil, what we have
Land use, land-use change, and forestryGreenhouse Gas Inventory, Germany - 2005
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Soil, what we needSoil, what we need
• Maps: soil type, soil properties, soil functions
• Observation of concrete profiles• Problems of re-sampling after time• Representativness of samples
• Potentials (e.g. erodability) vs. stocks (organic matter)
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Perspective / open pointsPerspective / open points
• Clear definition of subsystems (medium and processes)
• Link between ecosystem as individuals and European picture
• Criteria for back linking of case studies to European picture
• Additional to using what we have we need intensive dialogue what we need in advance of research project
• Do we account the same for ecosystems and land use?
• New model or another round with better input