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      Terrestrial biosphere changes over the last 120 kyr

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          Abstract

          Abstract. 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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          Most cited references94

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          Isopycnal Mixing in Ocean Circulation Models

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            Age dating and the orbital theory of the ice ages: Development of a high-resolution 0 to 300,000-year chronostratigraphy

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              The simulation of SST, sea ice extents and ocean heat transports in a version of the Hadley Centre coupled model without flux adjustments

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                Author and article information

                Contributors
                Journal
                Climate of the Past
                Clim. Past
                Copernicus GmbH
                1814-9332
                2016
                January 18 2016
                : 12
                : 1
                : 51-73
                Article
                10.5194/cp-12-51-2016
                020ba3cc-3637-4e06-aeb8-2c68589cc331
                © 2016

                https://creativecommons.org/licenses/by/3.0/

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