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DOI	10.1007/s10533-021-00759-x
	How much carbon can be added to soil by sorption?
	Abramoff R.Z.; Georgiou K.; Guenet B.; Torn M.S.; Huang Y.; Zhang H.; Feng W.; Jagadamma S.; Kaiser K.; Kothawala D.; Mayes M.A.; Ciais P.
发表日期	2021
ISSN	1682563
起始页码	127
结束页码	142
卷号	152 期号:2021-02-03
英文摘要	Quantifying the upper limit of stable soil carbon storage is essential for guiding policies to increase soil carbon storage. One pool of carbon considered particularly stable across climate zones and soil types is formed when dissolved organic carbon sorbs to minerals. We quantified, for the first time, the potential of mineral soils to sorb additional dissolved organic carbon (DOC) for six soil orders. We compiled 402 laboratory sorption experiments to estimate the additional DOC sorption potential, that is the potential of excess DOC sorption in addition to the existing background level already sorbed in each soil sample. We estimated this potential using gridded climate and soil geochemical variables within a machine learning model. We find that mid- and low-latitude soils and subsoils have a greater capacity to store DOC by sorption compared to high-latitude soils and topsoils. The global additional DOC sorption potential for six soil orders is estimated to be 107 ± 13 Pg C to 1 m depth. If this potential was realized, it would represent a 7% increase in the existing total carbon stock. © 2021, The Author(s).
英文关键词	Additional sorption potential; Mineral association; Saturation; Soil organic carbon; Sorption
语种	英语
来源期刊	Biogeochemistry
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/184630
作者单位	Laboratoire des Sciences du Climat et de l’Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, 91191, France; Department of Earth System Science, Stanford University, Yang & Yamazaki Building, 473 Via Ortega, Stanford, CA 94305-4216, United States; Laboratoire de Géologie, UMR 8538, Ecole Normale Supérieure, PSL Research University, CNRS, Paris, France; Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, United States; CSIRO Ocean and Atmosphere, Aspendale, 3195, Australia; Department Geoscience, Environment & Society, Université Libre de Bruxelles, Bruxelles, 1050, Belgium; Institute of Agriculture Resources and Regional Planning, Chinese Academy of Agricultural Sciences, 12 Zhongguancun South Street, Beijing, 10081, China; Department of Biosystems Engineering and Soil Science, University of Tennessee, 2506 E.J. Chapman Drive, Knoxville, TN 37996, United States; Soil Science and Soil Protection, Martin Luther University Halle-Wittenberg, von-Seckendorff-...
推荐引用方式 GB/T 7714	Abramoff R.Z.,Georgiou K.,Guenet B.,et al. How much carbon can be added to soil by sorption?[J],2021,152(2021-02-03).
APA	Abramoff R.Z..,Georgiou K..,Guenet B..,Torn M.S..,Huang Y..,...&Ciais P..(2021).How much carbon can be added to soil by sorption?.Biogeochemistry,152(2021-02-03).
MLA	Abramoff R.Z.,et al."How much carbon can be added to soil by sorption?".Biogeochemistry 152.2021-02-03(2021).