气候变化领域集成服务门户(CCPortal): Persistence of soil organic carbon caused by functional complexity

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DOI	10.1038/s41561-020-0612-3
	Persistence of soil organic carbon caused by functional complexity
	Lehmann J.; Hansel C.M.; Kaiser C.; Kleber M.; Maher K.; Manzoni S.; Nunan N.; Reichstein M.; Schimel J.P.; Torn M.S.; Wieder W.R.; Kögel-Knabner I.
发表日期	2020
ISSN	17520894
起始页码	529
结束页码	534
卷号	13 期号:8
英文摘要	Soil organic carbon management has the potential to aid climate change mitigation through drawdown of atmospheric carbon dioxide. To be effective, such management must account for processes influencing carbon storage and re-emission at different space and time scales. Achieving this requires a conceptual advance in our understanding to link carbon dynamics from the scales at which processes occur to the scales at which decisions are made. Here, we propose that soil carbon persistence can be understood through the lens of decomposers as a result of functional complexity derived from the interplay between spatial and temporal variation of molecular diversity and composition. For example, co-location alone can determine whether a molecule is decomposed, with rapid changes in moisture leading to transport of organic matter and constraining the fitness of the microbial community, while greater molecular diversity may increase the metabolic demand of, and thus potentially limit, decomposition. This conceptual shift accounts for emergent behaviour of the microbial community and would enable soil carbon changes to be predicted without invoking recalcitrant carbon forms that have not been observed experimentally. Functional complexity as a driver of soil carbon persistence suggests soil management should be based on constant care rather than one-time action to lock away carbon in soils. © 2020, Springer Nature Limited.
英文关键词	atmospheric gas; carbon dioxide; carbon storage; climate change; complexity; conceptual framework; drawdown; functional role; microbial community; persistence; soil carbon; soil management; soil organic matter; temporal variation
语种	英语
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206801
作者单位	Soil and Crop Science, School of Integrative Plant Science, Cornell University, Ithaca, NY, United States; Cornell Atkinson Center for Sustainability, Cornell University, Ithaca, NY, United States; Institute for Advanced Study, Technical University of Munich, Garching, Germany; Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA, United States; Department of Microbiology and Ecosystem Science, University of Vienna, Vienna, Austria; Department of Crop and Soil Science, Oregon State University, Corvallis, OR, United States; Department of Earth System Science, Stanford University, Stanford, CA, United States; Department of Physical Geography, Stockholm University, Stockholm, Sweden; Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden; Institute of Ecology and Environmental Sciences, CNRS-Sorbonne Université-IRD-UPEC-P7-INRA, Paris, France; Department Biogeochemical Integration, Max Planck Institute for Biogeochemistry, Jena, Germany; De...
推荐引用方式 GB/T 7714	Lehmann J.,Hansel C.M.,Kaiser C.,et al. Persistence of soil organic carbon caused by functional complexity[J],2020,13(8).
APA	Lehmann J..,Hansel C.M..,Kaiser C..,Kleber M..,Maher K..,...&Kögel-Knabner I..(2020).Persistence of soil organic carbon caused by functional complexity.Nature Geoscience,13(8).
MLA	Lehmann J.,et al."Persistence of soil organic carbon caused by functional complexity".Nature Geoscience 13.8(2020).