Long-term variability and rainfall control of savanna fire regimes in equatorial East Africa.

  title={Long-term variability and rainfall control of savanna fire regimes in equatorial East Africa.},
  author={David M Nelson and Dirk Verschuren and Michael A Urban and Feng Sheng Hu},
  journal={Global change biology},
  volume={18 10},
Fires burning the vast grasslands and savannas of Africa significantly influence the global carbon cycle. Projecting the impacts of future climate change on fire-mediated biogeochemical processes in these dry tropical ecosystems requires understanding of how various climate factors influence regional fire regimes. To examine climate-vegetation-fire linkages in dry savanna, we conducted macroscopic and microscopic charcoal analysis on the sediments of the past 25 000 years from Lake Challa, a… CONTINUE READING
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