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Importance of vegetation dynamics for future terrestrial carbon cycling

Ahlström, A.; Xia, J.; Arneth, A.; Luo, Y.; Smith, B.

Abstract:
Terrestrial ecosystems currently sequester about one third of anthropogenic CO$_{2}$ emissions each year, an important ecosystem service that dampens climate change. The future fate of this net uptake of CO$_{2}$ by land based ecosystems is highly uncertain. Most ecosystem models used to predict the future terrestrial carbon cycle share a common architecture, whereby carbon that enters the system as net primary production (NPP) is distributed to plant compartments, transferred to litter and soil through vegetation turnover and then re-emitted to the atmosphere in conjunction with soil decomposition. However, while all models represent the processes of NPP and soil decomposition, they vary greatly in their representations of vegetation turnover and the associated processes governing mortality, disturbance and biome shifts. Here we used a detailed second generation dynamic global vegetation model with advanced representation of vegetation growth and mortality, and the associated turnover. Weapply an emulator that describes the carbon flows and pools exactly as in simulations with the full model. The emulator simulates ecosystem dynamics in response to 13 different climate or Earth system model simulations from the Coupled Model Intercomparison Project Phase 5 ensemble under RCP8.5 radiative forcing. ... mehr

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Volltext §
DOI: 10.5445/IR/110101546
Originalveröffentlichung
DOI: 10.1088/1748-9326/10/5/054019
Scopus
Zitationen: 43
Web of Science
Zitationen: 41
Dimensions
Zitationen: 47
Cover der Publikation
Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2015
Sprache Englisch
Identifikator ISSN: 1748-9318, 1748-9326
urn:nbn:de:swb:90-AAA1101015460
KITopen-ID: 110101546
HGF-Programm 12.02.02 (POF III, LK 01) Vegetation climate- and land use system
Erschienen in Environmental research letters
Verlag IOP Publishing
Band 10
Heft 5
Seiten Art.Nr.: 054019
Nachgewiesen in Dimensions
Scopus
Web of Science
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