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Weathering and erosion images

Weathering and Erosion

 

 

Weathering is the breakdown

Erosion is the carrying away


Agents of weathing and erosion?


Factors influencing rate of weathing?

 

 

 

Image result for factors of weathering and erosion

Image result for factors of weathering and erosion

Image result for factors of weathering and erosion

Image result for factors of weathering and erosion

 

As you can see, there is lots of overlap between these, but the main factors contributing to weathering and erosion are the climate (temperature and rainfall), the rock itself (surface area, cracks, and composittion), and time.

 

 

 

When a rock weathers, it becomes soil.  Dig down, it is not all uniform.  Here is what you will find:

Related image

The thickness of the layers is determined by the rate of weathering (more weathering = thicker layer).

The nutrient level of the soil is determined by the amount of life there and the amount of leaching rainfall 

 

 

 

Based on that, describe the soil in the grasslands.

        Arctic?
        Desert?
        Around here?
        The moon?
        Venus?

 

 

 

We try to prevent soil erosion in lots of ways.   Brainstorm some...

 

 

 

 

 

Terracing:

Image result for terracing

 

 

Windbreaks:

Image result for windbreaks

Image result for windbreaks

 

Contour farming:

Image result for contour farming

 

 

Strip cropping:

Image result for strip cropping

Image result for strip cropping

 

 

 

Cover crops:

Image result for cover cropping

 

 

Low till farming and other ideas...

 

 

Land movement could be quickly like landslides, but it also can move slowly.  That is called "creep."  Here is how you can tell land is creeping:

Image result for j shaped trees, creep

Image result for j shaped trees, creep

 

Image result for j shaped trees, creep, diagram

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