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Modelled land use and land cover change emissions-a spatio-Temporal comparison of different approaches

Obermeier, W. A.; Nabel, J. E. M. S.; Loughran, T.; Hartung, K.; Bastos, A.; Havermann, F.; Anthoni, P. 1,2; Arneth, A. 1,2; Goll, D. S.; Lienert, S.; Lombardozzi, D.; Luyssaert, S.; McGuire, P. C.; Melton, J. R.; Poulter, B.; Sitch, S.; Sullivan, M. O.; Tian, H.; Walker, A. P.; ... mehr

Abstract:
Quantifying the net carbon flux from land use and land cover changes (f$_{LULCC}$) is critical for understanding the global carbon cycle and, hence, to support climate change mitigation. However, large-scale f$_{LULCC}$ is not directly measurable and has to be inferred from models instead, such as semi-empirical bookkeeping models and process-based dynamic global vegetation models (DGVMs). By definition, f$_{LULCC}$ estimates are not directly comparable between these two different model types. As an important example, DGVM-based f$_{LULCC}$ in the annual global carbon budgets is estimated under transient environmental forcing and includes the so-called loss of additional sink capacity (LASC). The LASC results from the impact of environmental changes on land carbon storage potential of managed land compared to potential vegetation and accumulates over time, which is not captured in bookkeeping models. The f$_{LULCC}$ from transient DGVM simulations, thus, strongly depends on the timing of land use and land cover changes mainly because LASC accumulation is cut off at the end of the simulated period. To estimate the LASC, the f$_{LULCC}$ from pre-industrial DGVM simulations, which is independent of changing environmental conditions, can be used. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000133842
Veröffentlicht am 14.06.2021
Originalveröffentlichung
DOI: 10.5194/esd-12-635-2021
Scopus
Zitationen: 13
Web of Science
Zitationen: 10
Dimensions
Zitationen: 15
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2190-4979, 2190-4987
KITopen-ID: 1000133842
HGF-Programm 12.11.21 (POF IV, LK 01) Human impact on land - climate dynamics
Erschienen in Earth System Dynamics
Verlag Copernicus Publications
Band 12
Heft 2
Seiten 635-670
Nachgewiesen in Scopus
Dimensions
Web of Science
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