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The impact of LULCC on the emission of BVOCs during the 21st century

Arneth, Almut; Hantson, Stijn; Szogs, Sebastian; Anthoni, Peter; Doelman, Jonathan; Humpenöder, Florian; Popp, Alex; Pugh, Tom; Stehfest, Elke


Land-use and land-cover change (LULCC) is one of the key drivers of anthropogenic climate change. In addition to greenhouse gases such as CO2 or CH4, LULCC affects also the emission of biogenic volatile organic compounds (BVOCs). We investigate the impact of changing LULCC on the emission of isoprene and monoterpenes during the 21st century using a range of different land-use projections, applying the dynamic vegetation modelling framework LPJ-GUESS. Climate change, and atmospheric CO2-concentration are based on the RCP2.6 scenario. The different LULCC-scenarios explore the impact of different land-based climate change mitigation strategies (such as afforestation and avoided deforestation, or bioenergy). We show that the increase of land area under crops or grassland would lead to a significant decrease of BVOC emissions, with a strong negative correlation between the fraction of managed global land area and the emission of isoprene and monoterpenes. The choice of crops is important, especially for the bioenergy scenarios in which increasing fractional cover leads to decreasing BVOC emissions in our simulations; use of woody bioenergy crops could reverse this decrease. ... mehr

Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Vortrag
Publikationsjahr 2017
Sprache Englisch
Identifikator KITopen-ID: 1000078645
HGF-Programm 12.02.02 (POF III, LK 01) Vegetation climate- and land use system
Veranstaltung 5th iLEAPS Science Conference, Oxford, GB, September 11-14, 2017
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