Carbon Sources (annual)
- 80.4 GtC by soil respiration and fermentation (Raich et al., 2002)
- 38 GtC and rising by 0.5 GtC per annum by cumulative photosynthesis deficit(Casey, 2008)
- by post-clearance deflation (See Eswaran, 1993)
- 7.8 GtC (IPCC, 2007 - Needs peer reviewed reference)
- 2.3 GtC by process of deforestation (IPCC, 2007; Melillo et al., 1996; Haughton & Hackler, 2002)
- 0.03 GtC? by Volcanoes
- by Tectonic rifts
- by Animal Respiration
- by Plant Respiration
Read more about this topic: Carbon Budget
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