1 / 21

Soils

Soils. Soil. Weathering and erosion transports materials across Earth’s surface The loose material covers most of Earth’s surface is a resource . Soil (not dirt) is a combination of weathered rock and organic material that can support plant life. Soil formation is a slow process.

oona
Télécharger la présentation

Soils

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Soils

  2. Soil • Weathering and erosion transports materials across Earth’s surface • The loose material covers most of Earth’s surface is a resource. • Soil (not dirt) is a combination of weathered rock and organic material that can support plant life. • Soil formation is a slow process.

  3. Soil Formation • Parent material – the material weathered into soil • Residual Soil – • Soil that contains weathered material that matches the local bedrock • The local bedrock was weathered in place and turned into soil. (Remember this is a very slow process) • Transported Soil • Soil that contains weathered material that is different from the local bedrock. • The rock material needed to make the soil was ‘transported’ (wind, water, glaciers) • NYS is mostly covered in transported soil

  4. Soil Profiles • The ‘ideal’ soil profile is composed of 4 layers • O - organic • A - leaching • B - accumulation • C – weathered parent material

  5. Soil Profiles

  6. Types of Soil • There are many different soils that are formed under unique conditions • Soil composition – • Inorganic material sand, silt, clay. • This material affects the amount of water within soil • sand dries out fast, clayey soil dries slower.

  7. Soil Classification • Different conditions lead to different soil types.

  8. Factors that influence Soil Development • Time • Parent Material • Plants and animals • Topography (slope) • Climate

  9. Some Soil Photos

  10. New York Tennessee

  11. South Dakota

  12. California

  13. Houston, TX North East US

  14. Northeast woodland

  15. Tropical Soils: • Very thick B layer

  16. England

  17. Desert Soil

  18. Hawaii Soil

More Related