dc.contributor.author | Li, W | |
dc.contributor.author | Ciais, P | |
dc.contributor.author | Peng, S | |
dc.contributor.author | Yue, C | |
dc.contributor.author | Wang, Y | |
dc.contributor.author | Thurner, M | |
dc.contributor.author | Saatchi, SS | |
dc.contributor.author | Arneth, A | |
dc.contributor.author | Avitabile, V | |
dc.contributor.author | Carvalhais, N | |
dc.contributor.author | Harper, AB | |
dc.contributor.author | Kato, E | |
dc.contributor.author | Koven, C | |
dc.contributor.author | Liu, YY | |
dc.contributor.author | Nabel, JEMS | |
dc.contributor.author | Pan, Y | |
dc.contributor.author | Pongratz, J | |
dc.contributor.author | Poulter, B | |
dc.contributor.author | Pugh, TAM | |
dc.contributor.author | Santoro, M | |
dc.contributor.author | Sitch, S | |
dc.contributor.author | Stocker, BD | |
dc.contributor.author | Viovy, N | |
dc.contributor.author | Wiltshire, A | |
dc.contributor.author | Yousefpour, R | |
dc.contributor.author | Zaehle, S | |
dc.date.accessioned | 2018-01-12T15:25:08Z | |
dc.date.issued | 2017-11-14 | |
dc.description.abstract | The use of dynamic global vegetation models (DGVMs) to estimate CO2 emissions from land-use and land-cover change (LULCC) offers a new window to account for spatial and temporal details of emissions and for ecosystem processes affected by LULCC. One drawback of LULCC emissions from DGVMs, however, is lack of observation constraint. Here, we propose a new method of using satellite- and inventory-based biomass observations to constrain historical cumulative LULCC emissions (ELUCc) from an ensemble of nine DGVMs based on emerging relationships between simulated vegetation biomass and ELUCc. This method is applicable on the global and regional scale. The original DGVM estimates of ELUCc range from 94 to 273PgC during 1901-2012. After constraining by current biomass observations, we derive a best estimate of 155±50PgC (1σ Gaussian error). The constrained LULCC emissions are higher than prior DGVM values in tropical regions but significantly lower in North America. Our emergent constraint approach independently verifies the median model estimate by biomass observations, giving support to the use of this estimate in carbon budget assessments. The uncertainty in the constrained ELUCc is still relatively large because of the uncertainty in the biomass observations, and thus reduced uncertainty in addition to increased accuracy in biomass observations in the future will help improve the constraint. This constraint method can also be applied to evaluate the impact of land-based mitigation activities. | en_GB |
dc.description.sponsorship | Wei Li, Chao Yue, Thomas A. M. Pugh and
Almut Arneth were supported by the project LUC4C funded by
the European Commission (grant no. 603542). Philippe Ciais
and Shushi Peng acknowledge support from the European Research
Council through Synergy grant ERC-2013-SyG-610028
“IMBALANCE-P”. Julia Pongratz, Julia E. M. S. Nabel and
Rasoul Yousefpour were supported by the German Research
Foundation’s Emmy Noether Program (PO 1751/1-1). Benjamin
D. Stocker was supported by the Swiss National Science
Foundation and FP7 funding through project EMBRACE (282672).
Anna B. Harper was supported by the UK Natural Environment
Research Council Joint Weather and Climate Research Programme.
Martin Thurner acknowledges funding from the Vetenskapsrådet
(grant no. 621-2014-4266 of the Swedish Research Council). | en_GB |
dc.identifier.citation | Vol. 14, pp. 5053 - 5067 | en_GB |
dc.identifier.doi | 10.5194/bg-14-5053-2017 | |
dc.identifier.uri | http://hdl.handle.net/10871/30938 | |
dc.language.iso | en | en_GB |
dc.publisher | European Geosciences Union (EGU) / Copernicus Publications | en_GB |
dc.relation.source | The biomass maps and model outputs can be freely accessed by
following the instructions in the original publications. All the
biomass-constrained LULCC emission data can be freely obtained
from Wei Li (email: wei.li@lsce.ipsl.fr). | en_GB |
dc.rights | © Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License: https://creativecommons.org/licenses/by/3.0/ | en_GB |
dc.title | Land-use and land-cover change carbon emissions between 1901 and 2012 constrained by biomass observations | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2018-01-12T15:25:08Z | |
dc.identifier.issn | 1726-4170 | |
dc.description | This is the final version of the article. Available from EGU via the DOI in this record. | en_GB |
dc.identifier.journal | Biogeosciences | en_GB |