found on either side of the equator found on the edges of tropical rainforests found in india, south...
TRANSCRIPT
Tundra’s Savanna’s
Daniel VoughtElizabeth Harrington
Janice Eda
SAVANNATundraFound on either side of the equator
Found on the edges of tropical rainforests
Found in India, South America, Australia, but mostly in Africa
Located 55° and 70° North
Found in the Northern Hemisphere.There are Tundra-like areas found in Antarctica, but are not a true tundra’s.
Savanna Climate• savanna• Climate: warm or hot temperatures • annual rainfall of 20-50 inches per year• concentrated rainfall in 6-8 months• long drought period invoking fires
– Climatic Savannahs: result from climatic conditions of distinct wet and dry seasons– Edaphic Savannahs: caused by soil conditions preventing deep root systems– Derived Savannahs: result of people clearing land for cultivation– Regions: Acacia savannahs: east Africa
• Grass savannah: Serengeti Plains• Pine savannah: occur on sandy soils in Central America
Climate
• Tundra• Climate: 6-10 months winter season with
temperatures below freezing• Annual rainfall of 5-10 inches• Short growing season• Soil: relatively unknown due to permafrost
Vegetation
Acacia Senegal-Small sized thorn tree located in the African Grassland
Bermuda Grass- Common type of grass through the Savannas of Africa
Gum Tree Eucalyptus-commonly in the plains and savannas of Australia. Can grow 20-30 feet
Caribou Moss-actually a lichen not a moss.Caribous and reindeer feed on it.
The Yellow Tundra Flower.
Vegetation for Tundra• Soil: relatively unknown due to permafrost• Vegetation: protected by snow cover in winter• Ground-hugging and warmth preserving plants:• Dwarf shrubs, sedges, mosses, lichens• Arctic Tundra: Encircles the north pole and usually contains frozen subsoil• High Arctic Tundra: confined to islands of the Arctic Ocean characterized by perennial forbs, • Mosses, and lichens• Middle Arctic Tundra: Arctic Coastal plain with freeze/thaw activity• Low Arctic Tundra: woody shrubs, willow, birch and needleleaf evergreen• Alpine Tundra: located on mountains at high altitudes• Well-drained soil• Unable to sustain tree life• Tussock grasses, dwarf trees, small-leafed shrubs, heaths
Vegetation and Soil
• Savanna• Soil: porous• Low fertility• Rapid water drainage• Thin layer of humus• Laterization: created by alternating wet and dry
seasons • exposes the lateritic soils to the sun• makes the ground impermeable to water• prevents root penetration• inhibits tree growth
Life In the Tundra
Arctic Fox
Polar Bear
Caribou
Elk
Graphics and info from
• http://www.blueplanetbiomes.org/tundra.htm
• http://www.Ucmp.berkley.edu• http://www.runet.edu• http://www.wikipedia.org