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Hotspots of gross emissions from the land use sector: Patterns, uncertainties, and leading emission sources for the period 2000-2005 in the tropics

Maria Roman-Cuesta, R.; Rufino, M.; Herold, M.; Butterbach-Bahl, K. 1; Rosenstock, T. S.; Herrero, M.; Ogle, S.; Li, C.; Poulter, B.; Verchot, L.; Martius, C.; Stuiver, J.; De Bruin, S.
1 Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU), Karlsruher Institut für Technologie (KIT)

Abstract:

According to the latest report of the Intergovernmental Panel on Climate Change (IPCC), emissions must be cut by 41–72%below 2010 levels by 2050 for a likely chance of containing the global mean temperature increase to 2C°. The AFOLU sector (Agriculture, Forestry and Other Land Use) contributes roughly a quarter (~10–12 PgCO$_{2}$e yr$^{-1}$) of the net anthropogenic GHG emissions mainly from deforestation, fire, wood harvesting, and agricultural emissions including croplands, paddy rice, and livestock. In spite of the importance of this sector, it is unclear where the regions with hotspots of AFOLU emissions are and how uncertain these emissions are. Here we present a novel, spatially comparable dataset containing annual mean estimates of gross AFOLU emissions (CO$_{2}$, CH$_{4}$, N$_{2}$O), associated uncertainties, and leading emission sources, in a spatially disaggregated manner (0.5°) for the tropics for the period 2000–2005. Our data highlight the following: (i) the existence of AFOLU emissions hotspots on all continents, with particular importance of evergreen rainforest deforestation in Central and South America, fire in dry forests in Africa, and both peatland emissions and agriculture in Asia; (ii) a predominant contribution of forests and CO$_{2}$ to the total AFOLU emissions (69 %) and to their uncertainties (98 %); (iii) higher gross fluxes from forests, which coincide with higher uncertainties, making agricultural hotspots appealing for effective mitigation action; and (iv) a lower contribution of non-CO$_{2}$ agricultural emissions to the total gross emissions (ca. ... mehr


Volltext §
DOI: 10.5445/IR/1000058667
Originalveröffentlichung
DOI: 10.5194/bg-13-4253-2016
Scopus
Zitationen: 27
Web of Science
Zitationen: 25
Dimensions
Zitationen: 40
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: 1726-4170, 1726-4189
urn:nbn:de:swb:90-586679
KITopen-ID: 1000058667
HGF-Programm 12.02.01 (POF III, LK 01) Effects of land use and climate change
Erschienen in Biogeosciences
Verlag Copernicus Publications
Band 13
Heft 14
Seiten 4253-4269
Nachgewiesen in Scopus
Web of Science
Dimensions
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