Terrestrial biosphere changes over the last 120 kyr

• Published in: Climate of the Past
• Main Authors: Hoogakker, B., Smith, R., Singarayer, J., Marchant, R., Prentice, I., Allen, J., Anderson, R., Bhagwat, S., Behling, H., Borisova, O., Bush, M., Correa-Metrio, A., de Vernal, A., Finch, J., Fréchette, B., Lozano-Garcia, S., Gosling, W., Granoszewski, W., Grimm, E., Grüger, E., Hanselman, J., Harrison, S., Hill, T., Huntley, B., Jiménez-Moreno, G., Kershaw, P., Ledru, M.-P., Magri, D., Mckenzie, M., Müller, U., Nakagawa, T., Novenko, E., Penny, D., Sadori, L., Scott, L., Stevenson, J., Valdes, P., Vandergoes, M., Velichko, A., Whitlock, C., Tzedakis, C.
• Other Authors: Department of Earth Sciences Oxford, University of Oxford, University of Reading (UOR), Bristol Research Initiative for the Dynamic Global Environment (BRIDGE), School of Geographical Sciences Bristol, University of Bristol Bristol -University of Bristol Bristol, University of York York, UK, Grantham Institute for Climate Change and the Environment, Imperial College London, Department of Life Sciences, Department of Biological Sciences North Ryde, Macquarie University, Durham University, Northern Arizona University Flagstaff, The Open University Milton Keynes (OU), Georg-August-University = Georg-August-Universität Göttingen, Institute of Geography of RAS, Russian Academy of Sciences Moscow (RAS), Florida Institute of Technology Melbourne, Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM), Centre de recherche sur la dynamique du système Terre (GEOTOP), École Polytechnique de Montréal (EPM)-McGill University = Université McGill Montréal, Canada -Université de Montréal (UdeM)-Université du Québec en Abitibi-Témiscamingue (UQAT)-Université du Québec à Rimouski (UQAR)-Concordia University Montreal -Université du Québec à Montréal = University of Québec in Montréal (UQAM), University of KwaZulu-Natal Durban, Afrique du Sud (UKZN), Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam Amsterdam (UvA), Polish Geological Institute, National Research Institute, Illinois State Museum, Centre for Past Climate Change (CPCC), School of Archaeology, Geography and Environmental Sciences (SAGES), Universidad de Granada = University of Granada (UGR), Monash University Melbourne, Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS), Università degli Studi di Roma "La Sapienza" = Sapienza University Rome (UNIROMA), Monash University Clayton, Biodiversity and Climate Research Centre (BiK-F) (LOEWE), Institute of Geosciences Frankfurt am Main, Goethe-Universität Frankfurt am Main, Ritsumeikan University, EarthByte Group, School of Geosciences, The University of Sydney, University of the Free State South Africa, Australian National University (ANU), Climate Change Institute Orono (CCI), University of Maine, Department of Earth Sciences MSU Bozeman, Montana State University (MSU), Department of Geography
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2016
• Subjects: [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology; [SDV.EE.BIO]Life Sciences [q-bio]/Ecology; environment/Bioclimatology; Tundra
• Online Access: https://hal.umontpellier.fr/hal-03048687; https://hal.umontpellier.fr/hal-03048687/document; https://hal.umontpellier.fr/hal-03048687/file/cp-12-51-2016.pdf; https://doi.org/10.5194/cp-12-51-2016

International audience A new global synthesis and biomization of long (> 40 kyr) pollen-data records is presented and used with simulations from the HadCM3 and FAMOUS climate models and the BIOME4 vegetation model to analyse the dynamics of the global terrestrial biosphere and carbon storage over the last glacial–interglacial cycle. Simulated biome distributions using BIOME4 driven by HadCM3 and FAMOUS at the global scale over time generally agree well with those inferred from pollen data. Global average areas of grassland and dry shrubland, desert, and tundra biomes show large-scale increases during the Last Glacial Maximum, between ca. 64 and 74 ka BP and cool substages of Marine Isotope Stage 5, at the expense of the tropical forest, warm-temperate forest, and temperate forest biomes. These changes are reflected in BIOME4 simulations of global net primary productivity, showing good agreement between the two models. Such changes are likely to affect terrestrial carbon storage, which in turn influences the stable carbon isotopic composition of seawater as terrestrial carbon is depleted in 13C.