Terrestrial biosphere changes over the last 120 kyrстатья
Статья опубликована в высокорейтинговом журнале
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 9 марта 2017 г.
Аннотация: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 largescale
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.