Question

why do trees do not grow in the savanna​

Answer 1

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Researchers have now uncovered the reason. Water is often scarce in Africa's savannas, so it would seem logical to conclude that more rainfall would allow the few trees in the expansive grassland ecosystems to thrive. ... Grasses are more efficient at absorbing water, so in a big rainfall event, grasses win."

Answer 2

Answer:

Savannas typically get very little rain – about 4 inches (100 mm) of rain – in the dry season, and they will often not get any rainfall at all for many months. This is a long time for plants to go without water, which is why you don't see many trees. However, the wet season gets lots of rain.

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