The Dirt on Soil

choppedspleenMechanics

Feb 21, 2014 (3 years and 3 months ago)

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The Dirt on Soil

Objectives


Be able to define: Soil, Pedon


Be familiar with the characteristics that
enable scientists to “classify soil types”


Recognize how soil influences the
chemical, biological, and physical
components of the ecosystem

Objectives


Define erosion and sedimentation


Explain how marshy soils differ from
terrestrial soils

What is Soil?

How are soils differentiated?

Soil Properties


Porosity: measure of the space between soil
components. Particle size influences
porosity.


Permeability: measure of how easy it is for
water or some other component to flow
through a soil


Moisture Storage: how much water is
retained in a soil.

How does soil influence the
environment?


Chemical component


Binds nutrients


Houses microbes that convert

Biology: Bacteria

Biology: Fungi, Invertebrates

Erosion and Sedimentation


Erosion is the movement of soil from its
point of origin


Sedimentation is the filling of an area with
eroded soil



Both are influenced by Rain and Wind


Both can be accelerated due to loss of cover