Soil geography
Download
1 / 34

Soil Geography - PowerPoint PPT Presentation


  • 79 Views
  • Uploaded on

Soil Geography. Sources http://soils.ag.uidaho.edu/soilorders http://www.geo.wvu.edu/~kite/2002SoilsHandout.htm. Theoretical Model of Soil. The Jenny equation (1941) S=f(o, cl, r, p, t) o=organisms cl=climate r=relief p=parent material t=time. Soil Textures. Texture Families.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Soil Geography' - roseanne


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Soil geography
Soil Geography

  • Sources

    • http://soils.ag.uidaho.edu/soilorders

    • http://www.geo.wvu.edu/~kite/2002SoilsHandout.htm


Theoretical model of soil
Theoretical Model of Soil

  • The Jenny equation (1941)

    • S=f(o, cl, r, p, t)

    • o=organisms

    • cl=climate

    • r=relief

    • p=parent material

    • t=time




Entisol order
Entisol Order

  • recent

  • Soils of recent origin

  • Floodplains

  • Steep, rocky

  • Having only an A horizon


Entisol suborders
Entisol Suborders

  • http://soils.ag.uidaho.edu/soilorders


loamy-skeletal, mixed,

superactive, nonacid,

mesic Lithic Xerorthent

http://soils.ag.uidaho.edu/soilorders


The mollisol order
The Mollisol Order

  • mollis, soft

  • Formed under influence of grassland.

  • Insufficient precipitation to leach the soil.

    • Long-term addition of organic materials from plant roots.

    • Deep, dark colored surface horizon.

    • Fertile soils.


Palouse Series

Haploxeroll

A

AB

BW1

BW2


Mollisols in the u s
Mollisols in the U.S.

  • http://soils.ag.uidaho.edu/soilorders


Mollisol suborders
Mollisol Suborders

  • http://soils.ag.uidaho.edu/soilorders


Cryoll landscape
Cryoll Landscape

http://soils.ag.uidaho.edu/soilorders


fine-loamy, mixed,

superactive

Pachic Argicryoll

http://soils.ag.uidaho.edu/soilorders


Argixeroll landscape
Argixeroll Landscape

  • http://soils.ag.uidaho.edu/soilorders


loamy-skeletal, mixed,

superactive, mesic

Lithic Argixeroll

http://soils.ag.uidaho.edu/soilorders


Alfisol order
Alfisol Order

  • Moderately leached forest soils.

  • Clay accumulation in subsurface horizon.

  • Fertile soils.


Alfisol landscape
Alfisol Landscape

http://soils.ag.uidaho.edu/soilorders


fine-loamy, mixed,

superactive

Typic Haplocryalf

http://soils.ag.uidaho.edu/soilorders


Spodosol order
Spodosol Order

  • od, spodos, wood ashes.

  • Acid soils with subsurface accumulation of humus and Al & Fe oxides.

  • Highly leached E horizon.


Spodosol landscape
Spodosol Landscape

  • http://soils.ag.uidaho.edu/soilorders



Inceptisol order
Inceptisol Order

  • ept, inceptum, beginning

  • Minimal horizon development.

    • Steep slopes, young geomorphic surfaces, resistant parent materials.


Inceptisol suborders
Inceptisol Suborders

  • http://soils.ag.uidaho.edu/soilorders


Inceptisol landscape
Inceptisol Landscape

  • http://soils.ag.uidaho.edu/soilorders




Andisol order
Andisol Order

  • Primarily soils formed in volcanic ash.

  • Dominated by glass and weathering products of glass.

  • High water-holding capacity.

  • Will ‘fix’ large quantities of phosphorus.


Andisol suborders
Andisol Suborders

  • http://soils.ag.uidaho.edu/soilorders


Volcanic glass
Volcanic Glass

  • http://soils.ag.uidaho.edu/soilorders



Histosol order
Histosol Order

  • ist, histos, tissue

  • Mainly organic materials

  • Restricted drainage to inhibit decomposition of plant materials

  • High carbon, wetlands


Haplosaprist landscape
Haplosaprist Landscape

http://soils.ag.uidaho.edu/soilorders


  • euic, frigid

  • Typic Haplosaprist

  • http://soils.ag.uidaho.edu/soilorders


ad