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Variation of rainfall
Areas that receive high rainfall are forested while those receiving low rainfall have grassland vegetation.
Variation of altitude/relief
Vegetation varies with height above sea level (e.g. montane in high altitude) as altitude influence climate and soil.
Aspect
Areas on leeward slopes of Mountains have different vegetation from thick growth of vegetation in the windward side because they receive different amounts of sunshine and rainfall.
Soil
Sandy soil/swamp soil/saline soil influence growth of different types of vegetation. Vegetation on slopes is determined by soil catena.
Drainage
Vegetation is as luxuriant along water courses/along coastal flats because surface water supply is reliable/waterlogged areas support swamp vegetation.
Human activities
Settlement/mining/ farming interferes with the original vegetation leading to growth of secondary / derived vegetation/desertification.
Wild animals
Destroy vegetation leading to secondary type/desertification. They aid in seed dispersal.
Kavungya answered the question on June 7, 2019 at 12:26
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