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The terrestrial carbon budget of South and Southeast Asia

Cervarich, M.; Shu, S.; Jain, A. K.; Arneth, A. 1; Canadell, J.; Friedlingstein, P.; Houghton, R. A.; Kato, E.; Koven, C.; Patra, P.; Poulter, B.; Sitch, S.; Stocker, B.; Viovy, N.; Wiltshire, A.; Zeng, N.
1 Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU), Karlsruher Institut für Technologie (KIT)

Abstract:

Accomplishing the objective of the current climate policies will require establishing carbon budget and flux estimates in each region and county of the globe by comparing and reconciling multiple estimates including the observations and the results of top-down atmospheric carbon dioxide (CO$_{2}$) inversions and bottom-up dynamic global vegetation models. With this in view, this study synthesizes the carbon source/sink due to net ecosystem productivity (NEP), land cover land use change (E$_{LUC}$), fires and fossil burning (E$_{FIRE}$) for the South Asia (SA), Southeast Asia (SEA) and South and Southeast Asia (SSEA = SA + SEA) and each country in these regions using the multiple top-down and bottom-up modeling results. The terrestrial net biome productivity (NBP = NEP – E$_{LUC}$ – E$_{FIRE}$) calculated based on bottom-up models in combination with E$_{FIRE}$ based on GFED4s data show net carbon sinks of 217 ± 147, 10 ± 55, and 227 ± 279 TgC yr$^{-1}$ for SA, SEA, and SSEA. The top-down models estimated NBP net carbon sinks were 20 ± 170, 4 ± 90 and 24 ± 180 TgC yr$^{-1}$. In comparison, regional emissions from the combustion of fossil fuels were 495, 275, and 770 TgC yr$^{-1}$, which are many times higher than the NBP sink estimates, suggesting that the contribution of the fossil fuel emissions to the carbon budget of SSEA results in a significant net carbon source during the 2000s. ... mehr


Volltext §
DOI: 10.5445/IR/1000062858
Originalveröffentlichung
DOI: 10.1088/1748-9326/11/10/105006
Scopus
Zitationen: 31
Web of Science
Zitationen: 23
Dimensions
Zitationen: 34
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2016
Sprache Englisch
Identifikator ISSN: 1748-9318, 1748-9326
urn:nbn:de:swb:90-628588
KITopen-ID: 1000062858
HGF-Programm 12.02.02 (POF III, LK 01) Vegetation climate- and land use system
Erschienen in Environmental research letters
Verlag Institute of Physics Publishing Ltd (IOP Publishing Ltd)
Band 11
Heft 10
Seiten 105006
Nachgewiesen in Dimensions
Scopus
Web of Science
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