Soil Carbon Feedback
"The soil carbon feedback concerns the releases of carbon from soils in response to global warming. This response under climate change is a positive climate feedback. There is approximately two to three times more carbon in global soils than the Earth's atmosphere,[1][2] which makes understanding this feedback crucial to understand future climate change. An increased rate of soil respiration is the main cause of this feedback, where measurements imply that 4 °C of warming increases annual soil respiration by up to 37%.[3]"[1]
Uncertainties
Many climate models to not account for feedback loops relating to carbon released from soil triggered by increased temperatures.[2] A limitation in our understanding of carbon cycling comes from the insufficient incorporation of soil animals, including insects and worms, and their interactions with microbial communities into global decomposition models.[3][4]
Tipping Points
Peatlands
Sources
- ↑ https://en.wikipedia.org/wiki/Soil_carbon_feedback
- ↑ S. Wieczorek, P. Ashwin, C. M. Luke, P. M. Cox (2011). "Excitability in ramped systems: the compost-bomb instability". Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. The Royal Society. 467 (2129): 1243–1269. Bibcode:2011RSPSA.467.1243W. doi:10.1098/rspa.2010.0485
- ↑ Crowther, Thomas W.; Thomas, Stephen M.; Maynard, Daniel S.; Baldrian, Petr; Covey, Kristofer; Frey, Serita D.; Diepen, Linda T. A. van; Bradford, Mark A. (2015-05-14). "Biotic interactions mediate soil microbial feedbacks to climate change". Proceedings of the National Academy of Sciences. 112 (22): 7033–7038. Bibcode:2015PNAS..112.7033C. doi:10.1073/pnas.1502956112. ISSN 0027-8424. PMC 4460469. PMID 26038557
- ↑ Lewis, Renee (2015-05-19). "The diet of worms: Soil dwellers emerge as climate change heroes in study". america.aljazeera.com. Retrieved 2021-11-30