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Toward more realist...
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Luo, YiqiUniversity of Oklahoma,Tsinghua University
(författare)
Toward more realistic projections of soil carbon dynamics by Earth system models
- Artikel/kapitelEngelska2016
Förlag, utgivningsår, omfång ...
Nummerbeteckningar
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LIBRIS-ID:oai:lup.lub.lu.se:b617d016-bd87-4afe-b431-c5787219e8b4
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https://lup.lub.lu.se/record/b617d016-bd87-4afe-b431-c5787219e8b4URI
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https://doi.org/10.1002/2015GB005239DOI
Kompletterande språkuppgifter
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Språk:engelska
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Sammanfattning på:engelska
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Klassifikation
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
Anmärkningar
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Soil carbon (C) is a critical component of Earth system models (ESMs), and its diverse representations are a major source of the large spread across models in the terrestrial C sink from the third to fifth assessment reports of the Intergovernmental Panel on Climate Change (IPCC). Improving soil C projections is of a high priority for Earth system modeling in the future IPCC and other assessments. To achieve this goal, we suggest that (1) model structures should reflect real-world processes, (2) parameters should be calibrated to match model outputs with observations, and (3) external forcing variables should accurately prescribe the environmental conditions that soils experience. First, most soil C cycle models simulate C input from litter production and C release through decomposition. The latter process has traditionally been represented by first-order decay functions, regulated primarily by temperature, moisture, litter quality, and soil texture. While this formulation well captures macroscopic soil organic C (SOC) dynamics, better understanding is needed of their underlying mechanisms as related to microbial processes, depth-dependent environmental controls, and other processes that strongly affect soil C dynamics. Second, incomplete use of observations in model parameterization is a major cause of bias in soil C projections from ESMs. Optimal parameter calibration with both pool- and flux-based data sets through data assimilation is among the highest priorities for near-term research to reduce biases among ESMs. Third, external variables are represented inconsistently among ESMs, leading to differences in modeled soil C dynamics. We recommend the implementation of traceability analyses to identify how external variables and model parameterizations influence SOC dynamics in different ESMs. Overall, projections of the terrestrial C sink can be substantially improved when reliable data sets are available to select the most representative model structure, constrain parameters, and prescribe forcing fields.
Ämnesord och genrebeteckningar
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CMIP5
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Earth system models
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realistic projections
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recommendations
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soil carbon dynamics
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Ahlström, AndersLund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science,Stanford University(Swepub:lu)nate-ana
(författare)
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Allison, Steven D.University of California, Irvine
(författare)
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Batjes, Niels H.ISRIC - World Soil Information
(författare)
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Brovkin, VictorMax Planck Institute for Meteorology
(författare)
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Carvalhais, NunoMax Planck Institute for Biogeochemistry,NOVA University Lisbon
(författare)
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Chappell, AdrianCSIRO Land & Water Flagship
(författare)
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Ciais, PhilippeVersailles Saint-Quentin-en-Yvelines University
(författare)
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Davidson, Eric A.University of Maryland
(författare)
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Finzi, AdienBoston University
(författare)
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Georgiou, KaterinaUniversity of California, Berkeley,Lawrence Berkeley National Laboratory
(författare)
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Guenet, BertrandVersailles Saint-Quentin-en-Yvelines University
(författare)
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Hararuk, OleksandraPacific Forestry Centre
(författare)
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Harden, Jennifer W.United States Geological Survey Western Region
(författare)
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He, YujieUniversity of California, Irvine
(författare)
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Hopkins, FrancescaUniversity of California, Irvine
(författare)
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Jiang, LifenUniversity of Oklahoma
(författare)
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Koven, CharlieLawrence Berkeley National Laboratory
(författare)
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Jackson, Robert B.Stanford University
(författare)
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Jones, Chris D.Met Office
(författare)
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Lara, Mark J.University of Alaska Fairbanks
(författare)
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Liang, JunyiUniversity of Oklahoma
(författare)
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McGuire, A. DavidNorthern Rocky Mountain Science Center,University of Alaska Fairbanks
(författare)
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Parton, WilliamColorado State University
(författare)
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Peng, ChanghuiUniversity Of Quebec In Montreal
(författare)
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Randerson, James T.University of California, Irvine
(författare)
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Salazar, AlejandroPurdue University
(författare)
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Sierra, Carlos A.Max Planck Institute for Biogeochemistry
(författare)
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Smith, Matthew J.Microsoft Research Ltd, UK
(författare)
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Tian, HanqinAuburn University
(författare)
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Todd-Brown, Katherine E.O.Pacific Northwest National Laboratory
(författare)
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Torn, MargaretLawrence Berkeley National Laboratory
(författare)
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Van Groenigen, Kees JanNorthern Arizona University
(författare)
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Wang, Ying PingCSIRO Oceans and Atmosphere, Canberra
(författare)
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West, Tristram O.Joint Global Change Research Institute
(författare)
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Wei, YaxingOak Ridge National Laboratory
(författare)
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Wieder, William R.National Center for Atmospheric Research
(författare)
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Xia, JianyangEast China Normal University
(författare)
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Xu, XiaIowa State University
(författare)
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Xu, XiaofengUniversity of Texas at El Paso
(författare)
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Zhou, TaoBeijing Normal University
(författare)
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University of OklahomaTsinghua University
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Global Biogeochemical Cycles30:1, s. 40-560886-6236
Internetlänk
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
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Luo, Yiqi
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Ahlström, Anders
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Allison, Steven ...
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Batjes, Niels H.
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Brovkin, Victor
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Carvalhais, Nuno
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visa fler...
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Chappell, Adrian
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Ciais, Philippe
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Davidson, Eric A ...
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Finzi, Adien
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Georgiou, Kateri ...
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Guenet, Bertrand
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Hararuk, Oleksan ...
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Harden, Jennifer ...
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He, Yujie
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Hopkins, Frances ...
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Jiang, Lifen
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Koven, Charlie
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Jackson, Robert ...
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Jones, Chris D.
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Lara, Mark J.
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Liang, Junyi
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McGuire, A. Davi ...
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Parton, William
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Peng, Changhui
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Randerson, James ...
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Salazar, Alejand ...
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Sierra, Carlos A ...
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Smith, Matthew J ...
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Tian, Hanqin
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Todd-Brown, Kath ...
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Torn, Margaret
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Van Groenigen, K ...
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Wang, Ying Ping
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West, Tristram O ...
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Wei, Yaxing
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Wieder, William ...
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Xia, Jianyang
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Xu, Xia
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Xu, Xiaofeng
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Zhou, Tao
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visa färre...
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