What would you like to do?

How have humans influenced the savanna biome?

already exists.

Would you like to merge this question into it?

already exists as an alternate of this question.

Would you like to make it the primary and merge this question into it?

exists and is an alternate of .

Human induced land use change has a greater effect on savanna structure and NPP than any other environmental changes. Savannas generally have low human population density as their capacity to support intensive agriculture and livestock grazing are poor; however, population pressure and land-use changes are likely to be greater here than in other biomes over the coming decades. The agro-pastoral communities in savannas are highly dependent on the natural vegetation, which is vulnerable to degradation. Strong social and economic forces will continue to force the conversion of forests to savannas and grasslands to pasture or agriculture fields, although tourism is supporting conservation of large areas of savannas in Africa.
Cattle rearing has been occurring for more than 6000 years in India and Africa and was sustainable before more recent increases in population, changing social practices, colonialisation, war, extensive commercial ranching, etc. Shifting cultivation has also been practised for thousands of years, generally in areas with rainfall greater than 700mm, but this is being affected by reduced fallow periods, larger commercial operations and increased use of fertiliser and irrigation which increases short-term productivity but can lead to long term depletion of resources and environmental degradation. South American savannas are rapidly being transformed for soybean cultivation and cattle raising. Australian savannas are likely to remain as grazing lands as alternative economic land uses are limited (Young & Solbrig, 1993; Solbrig, 1996; Joe Scanlan, pers. comm.).
Humans influence savannas by managing fire, wildlife and domestic livestock, and wood and grass removals. Intensive livestock grazing, exclusion of indigenous browsers and fire prevention leads to rapid bush encroachment. In areas of high population and charcoal production, intensive wood harvesting leads to decreased woody biomass, which, combined with high grazing, leads to erosion. The same happens when fire frequency is increased and the animal load is too high (Young & Solbrig, 1993).
14 people found this useful
Thanks for the feedback!

What is the savanna biome?

A Savanna biome is a rolling grass land scattered with shrubs and isolated trees, which can be found between a tropical rainforest biome and a desert biome. Not enough rain fa

Description of how human activity has influenced savanna?

The Human activies on the savanna has reduced the size of the natural land. The villiges and towns have cleared part of the savanna for houses and streets and gardens, which t