Forest Soils. Forests used to cover the Eastern half of the United States, and most of southern Canada. Most forests are not too hot, or not too cold,

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Presentation transcript:

Forest Soils

Forests used to cover the Eastern half of the United States, and most of southern Canada. Most forests are not too hot, or not too cold, and have moderate amounts of precipitation.

ALFISOL Moderately Weathered

SPODOSOL Sandy, Acidic

There are two main types of forests. Pine forests have ashy white layers ( E horizons ) and are called Spodosols. Deciduous forests have soils called alfisols, and are not as leached. But clay accumulates in the SUBSOIL.

There are a lot of organisms in the woods. Like salamanders, chipmunks, squirrels, and deer. There are a lot of TREES, mosses, fungi and bacteria.

The BIGGEST organism on the Earth is actually a FUNGUS in a temperate forest!

Can you think of a place that relief would be steep?

CO2 from Respiration CO2 from Atmosphere CO2 from Respiration Animal Waste Dead Animals Fallen Leaves Worms Tree Roots Soil Carbon from Living Sources Soil Carbon from Dead Sources Bacteria CO2 from Respiration Forests are Important to the Carbon Cycle Temperate forests store carbon in trees and soils, which keeps it from being released into the air.

CLEAR CUTTING is removing all trees at once. Why could this be a problem?

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Vocabulary E Horizon (eluviated) Subsoils Fungus Leaching

Vocabulary Spodosols – acidic, sandy forest soils under conifers Alfisols - moderately leached soils often found in temperate forests Respiration – animals breathing in and out generate carbon dioxide Carbon dioxide – a greenhouse gas