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Cropland activity. Work Plan - months 25-42 :. Collect meta-data for management – spatial (Abdn) Collate uncertainty data (Abdn)

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work plan months 25 42
Work Plan - months 25-42:
  • Collect meta-data for management – spatial (Abdn)
  • Collate uncertainty data (Abdn)
  • Compare error sources in flux data (table on instrumentation [& height] to develop into a paper on how to measure fluxes on cropland – shared experiences - Werner Eugster to co-ordinate – link to uncertainty? Stand-alone? Linked to night-time flux?)
  • Night-time flux – comparison with chamber measurements (Werner Eugster)
  • Synthesis paper to compare crop sites (add new sites) – synthesis paper (under way)
  • Define where sites fall on the SOC “depletion from natural” curve and compare fluxes (Werner Kutsch)
  • Carbon fluxes when crop is not there – all disturbances / transition periods (Enzo to coordinate)
  • Combined workshop (with forest and grassland / wetland activities) on how to use the flux data for modeling – (with John Tenhunen – Watti to pass on contacts to John)
  • Consolidated GHG balance for Europe (modelled N2O, CO2, CH4) – compare with IPCC - Abdn
slide3

IPCC AR4 Agricultural GHG Mitigation

Regional estimates of the biophysical mitigation potential for all practices and GHGs together

First Order Draft – do not cite or quote

slide4

IPCC AR4 Agricultural GHG Mitigation

Effect of price of CO2-eq. (US$ t CO2-eq. -1) on the total global mitigation potential

First Order Draft – do not cite or quote

cropland sites do we need them
Cropland sites – do we need them?
  • Site years in croplands (less than other biomes – in demand,recently evolving and biggest terrestrial source, most uncertain source in Europe)
  • Representativeness – in terms of crop, climate, soil & management
  • Uniqueness – what does the site give that others do not
  • Data quality and delivery