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Physorg: The Princeton researchers reported this month in the journal Science that savanna wildfires, combined with climate conditions, maintain the distinct border between savannas and forests in many tropical and subtropical areas. Savanna fires keep tree cover low and prevent forests from encroaching on the grassland. When tree cover is high, as in a forest, fires cannot spread as easily, halting the savanna's advance into the forest.
But the Princeton team's findings suggest that savanna wildfires......
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Savannas, forests in a battle of the biomes, researchers find
Posted by Washington Post: Juliet Eilperin on October 31st, 2011
Posted in Water Conservation