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Article Dans Une Revue Climate of the Past Année : 2016

Terrestrial biosphere changes over the last 120 kyr

1 Department of Earth Sciences [Oxford]
2 UOR - University of Reading
3 BRIDGE - Bristol Research Initiative for the Dynamic Global Environment
4 University of York [York, UK]
5 Grantham Institute for Climate Change and the Environment
6 Department of Life Sciences
7 Department of Biological Sciences [North Ryde]
8 Durham University
9 Northern Arizona University [Flagstaff]
10 OU - The Open University [Milton Keynes]
11 Georg-August-University = Georg-August-Universität Göttingen
12 Institute of Geography of RAS
13 Florida Institute of Technology [Melbourne]
14 UNAM - Universidad Nacional Autónoma de México = National Autonomous University of Mexico
15 GEOTOP - Centre de recherche sur la dynamique du système Terre
16 UKZN - University of KwaZulu-Natal [Durban, Afrique du Sud]
17 IBED - Institute for Biodiversity and Ecosystem Dynamics
18 Polish Geological Institute
19 Illinois State Museum
20 CPCC - Centre for Past Climate Change
21 SAGES - School of Archaeology, Geography and Environmental Sciences
22 UGR - Universidad de Granada = University of Granada
23 Monash University [Melbourne]
24 UMR ISEM - Institut des Sciences de l'Evolution de Montpellier
25 UNIROMA - Università degli Studi di Roma "La Sapienza" = Sapienza University [Rome]
26 Monash University [Clayton]
27 LOEWE - Biodiversity and Climate Research Centre (BiK-F)
28 Institute of Geosciences [Frankfurt am Main]
29 Ritsumeikan University
30 EarthByte Group, School of Geosciences
31 UFS - University of the Free State [South Africa]
32 ANU - Australian National University
33 CCI - Climate Change Institute [Orono]
34 Department of Earth Sciences [MSU Bozeman]
35 Department of Geography
J. R. M. Allen
  • Fonction : Auteur
J. Hanselman
  • Fonction : Auteur
B. Huntley
  • Fonction : Auteur

Résumé

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.
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hal-03048687 , version 1 (09-12-2020)

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B. A. A. Hoogakker, R. S. Smith, J. S. Singarayer, R. Marchant, I. C. Prentice, et al.. Terrestrial biosphere changes over the last 120 kyr. Climate of the Past, 2016, 12 (1), pp.51-73. ⟨10.5194/cp-12-51-2016⟩. ⟨hal-03048687⟩
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