Effect of Low Glacial Atmospheric CO2 on Tropical African Montane Vegetation

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Science  02 May 1997:
Vol. 276, Issue 5313, pp. 786-788
DOI: 10.1126/science.276.5313.786

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Estimates of glacial-interglacial climate change in tropical Africa have varied widely. Results from a process-based vegetation model show how montane vegetation in East Africa shifts with changes in both carbon dioxide concentration and climate. For the last glacial maximum, the change in atmospheric carbon dioxide concentration alone could explain the observed replacement of tropical montane forest by a scrub biome. This result implies that estimates of the last glacial maximum tropical cooling based on tree- line shifts must be revised.

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