BiomesBiomes are the world’s major communitiesClassified according to the predominantvegetationHuman activity can alter biomes 87% of the North American Temperate Rain Forest have been destroyed by human activities
Locations Eastern Asia Central and Western Europe Eastern United States
Major Geographical Features Water Lakes Rivers Streams etc.
Major Geographical Features Mountains Rocky Mountains Appalachian Mountains ChangBai Mountains etc. Humid temperate rain forest in Gilan Province, northern Iran
Climate Highs of 86 degrees Fahrenheit Lows of -22 degrees Fahrenheit Temperatures vary by over 100 degrees in a year
Climate Receive ample amounts of rain Between 20-60 inches per year In the form of rain or snow
Soil Often have soil that is very rich in nutrients because organisms die and decompose Dark and moist Nurse logs act as soil for many new plants on the forest floor Soil can erode because timber operations and slash-and-burn farmers destroy plants that hold the soil in place.
Flora Trees dominate Oakes –over 600 different species Maples – green, yellow, or red leaves Hickory – baseball bats Few plants grow on forest floor because almost no sunlight reaches them Plants grow as tall as possible to receive the most sunlight for photosynthesis
FaunaSquirrels Timber WolvesRabbits FoxesSkunks Black BearsBirds Mountain LionsDeer Bobcats
Deforestation In the last 5,000 years, humans have reduced forests from roughly 50% of the earth’s land surface to less than 20% Thailand will have no forest left in 25 years Philippines will have no forest left in less than 20 years Nepal will have no forest left in 15 years
Deforestation Conservation Efforts Replanting Replanting usually does not provide the same diversity originally found in the forest
Pollution Especially effects forests at high altitudes Pollutants: Acid deposition (acid rain) Damages tree leaves Exposes to toxic chemicals Restrictions are being placed on transportation and manufacturing to limit pollution