Question

what do you mean by savannah vegetation

Answer 1

heya

Savanna vegetation is adapted specifically to the location and characteristics of the region. The climatic variation means that the vegetation has a short life cycle, in which the primary aim is to conserve water to survive. However, the majority of the plants are xerophytic. This is characterised by small, spindly leaves, with waxy layers to reduce evapotranspiration. Trees have gnarled trunks to reduce water loss, e.g. the baobob, which has a 10m diameter trunk to store the maximum amount of water possible. They also have extensive root systems to absorb as much water as possible. Vegetation cover starts high above the ground to reduce animal destruction. For example, the acacia has leaves which start 5-7m above the ground. Plants do not waste energy on fruits, but rely on annual fires to spread their seed. The diurnal variations of climate, e.g. temperature ranges, humidity, wind velocity, all require flexible approaches to minimise the effects of evapotranspiration to preserve water.