Global stocks and capacity of mineral-associated soil organic carbon
Lawrence Livermore National Laboratory · Lawrence Livermore National Security · +18 more institutions
Abstract
Soil is the largest terrestrial reservoir of organic carbon and is central for climate change mitigation and carbon-climate feedbacks. Chemical and physical associations of soil carbon with minerals play a critical role in carbon storage, but the amount and global capacity for storage in this form remain unquantified. Here, we produce spatially-resolved global estimates of mineral-associated organic carbon stocks and carbon-storage capacity by analyzing 1144 globally-distributed soil profiles. We show that current stocks total 899 Pg C to a depth of 1 m in non-permafrost mineral soils. Although this constitutes 66% and 70% of soil carbon in surface and deeper layers, respectively, it is only 42% and 21% of the…
Citation impact
- FWCI
- 88.28
- Percentile
- 100%
- References
- 125
Authors
12- KGKaterina GeorgiouCorresponding
Lawrence Livermore National Laboratory, Lawrence Livermore National Security, Stanford University
- RBRobert B. Jackson
Palo Alto Institute, Stanford University
- OVOlga Vindušková
University of Antwerp, Charles University
- RARose Abramoff
Oak Ridge National Laboratory, Laboratoire des Sciences du Climat et de l'Environnement
- AAAnders Ahlström
Lund University
Topics & keywords
- Carbon sequestration
- Soil carbon
- Environmental science
- Soil water
- Carbon fibers
- Total organic carbon
- Permafrost
- Climate change
Funding
- UDU.S. Department of EnergyAwards: -AC02-05CH11231, AC05-00OR22725, 05CH11231, AC02-05CH11231, DE-AC02, Contract DE-AC52-07NA27344, DE-AC02-05CH11231, DE-AC05, AC52-07NA27344, 00OR22725, DE-AC02-
- UDU.S. Department of AgricultureAward: DE-AC02-05CH11231
- BBattelleAwards: DE-AC05, DE-AC52-07NA27344, DE-AC05-00OR22725
- UUT-BattelleAwards: DE-AC52-07NA27344, DE-AC05-, AC05-00OR22725
- ECEuropean CommissionAwards: 834169, DE-AC05-00OR22725, 793485, DE-AC02-05CH11231
- NINational Institute of Food and Agriculture
- OOOffice of ScienceAwards: DE-AC05-00OR22725, AC02-05CH11231, -AC02-05CH11231, DE-AC02, DE-AC52-07NA27344, AC05-00OR22725
- BABiological and Environmental ResearchAwards: 05CH11231, DE-AC05-00OR22725, DE-AC52-07NA27344, 00OR22725, DE-AC02-05CH11231, AC02-05CH11231
- LDLaboratory Directed Research and DevelopmentAwards: DE-AC52-07NA27344, DE-AC05-00OR22725, DE-AC02-05CH11231
- LLLawrence Livermore National LaboratoryAwards: Project No. 21-ERD-045, Contract DE-AC52-07NA27344, 21-ERD-045, DE-AC52-07NA27344, DE-AC05-00OR22725, DE-AC02-05CH11231, AC52-07NA27344
- OROak Ridge National LaboratoryAwards: DE-AC52-07NA27344, AC05-00OR22725, DE-AC02-05CH11231