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Table 1 Emission Factors for six scenarios (t CO2 eq. ha−1 year−1) and study area fluxes (t CO2 eq.) with estimated costs of re-wetting vs business as usual

From: Detecting peatland drains with Object Based Image Analysis and Geoeye-1 imagery

  Intact Blanket bogAc Intact Blanket bogBd DBAUa, e MDBAUb, f Re-wetAg Re-wetBh
CO2 −0.48 −2.12 1.40 1.14 0.04 −1.04
CH4 0.04 1.73 2.00 2.00 1.73 0.09
DOC 0.14 0.14 1.00 1.00 0.14 0.14
Emission factor −0.30 −0.25 4.40 4.14 1.91 −0.81
Study area (t CO2 eq.) −357 −301 5294 4984 2298 −975
EU ETS rate: €5.48i       
Drain blockingj €0 €0 €0 €0 €486,100 €486,100
Annual emission costs −€1,958k −€1648 €29,010 €27,312 €12,593 −€5340
Initial cost (€) year 1 −€1958 −€1648 €29,010 €27,312 €498,693 €480,759
Total costs (year 30)l −€58,744 −€49,448 €870,288 €819,356 €863,884 €325,888
  1. aDrained/business as usual
  2. bMapped drains/ business as usual
  3. cCO2, CH4 and DOC derived from Koehler et al. [65]
  4. dCO2 derived from Bonn et al. [69] and CH4 IPCC Tier 1 [70] and DOC from Koehler et al. [65]
  5. eCO2 and CH4 derived from Reed et al. [66] and DOC from Evans et al. [26]
  6. fCO2 derived in this study using figures from Wilson et al. [67, 68], CH4 Reed et al. [66] and DOC Evans et al. [26]
  7. gCO2 and CH4 from Bonn et al. [69] and IPCC Tier 1. [70] and DOC from Koehler [65]
  8. hCO2 and CH4 from Wilson et al. [71] and DOC from Koehler et al. [65]
  9. i€5.48 per tonne CO2 (21/11/2016—https://carbon-pulse.com/category/eu-ets/)
  10. jIncludes the cost of OBIA (€4852) and cost of blocking drains (€481,247) at €400/ha*1203 ha
  11. kThe minus value indicates the amount that is saved by not draining peatlands
  12. lThe total costs equals the initial year 1 cost plus the annual emission cost multiplied by 29
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