Your SlideShare is downloading. ×
0
2012 soil
2012 soil
2012 soil
2012 soil
2012 soil
2012 soil
2012 soil
2012 soil
2012 soil
2012 soil
2012 soil
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

2012 soil

623

Published on

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
623
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
5
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide
  • Parent Rock Bedrock Residual Soil Transported Soil
  • Leaching
  • Transcript

    • 1. h. Describe soil asconsisting of weatheredrocks and decomposed organic material.
    • 2. Essential Question
    • 3.  What are the scientists  Pedologist called that study soil? Soil Formation  Soil is formed slowly as rock (parent material ) erodes into tiny pieces near the Earth’s surface . Bedrock is the layer of rock just beneath soil.  Soil is made up of distinct Soil Layers horizontal layers called horizons . Range: organic upper layers to underlying rocky layers.
    • 4. What is loam? Soil composed of sand, silt, and clay in relatively even concentration
    • 5. Soil Properties: Soil Texture Definition: the soil quality that is based on the proportions of soil particles. Affects the soil’s consistency – The soil’s ability to be worked and broken up for farming Influences infiltration – Ability of water to move through the soil – Also known as percolation
    • 6. Soil Properties: Soil Structure Definition: the arrangement of soil particles Often one type of soil particles will clump in one area, which can block the flow of water through the soil affecting soil moisture.
    • 7. Soil Leaching Soil leaching refers is the movement of nutrient elements from topsoil through the soil profile. Leaching causes significant nutrient losses , particularly in humid regions with high precipitation. Leaching is a natural process caused mainly by precipitation , acidification and nitrogen saturation.
    • 8. Soil Properties: Soil Fertility Definition: soil’s ability to hold nutrients and to supply nutrients to a plant Soils vary in the amount of nutrients it contains. Plants need nutrients (such as IRON ) to grow.
    • 9. Soil pH Soils can be acidic or basic pH scale – Used to measure how acidic or basic a soil is and ranges from 0 to 14 . – The midpoint 7 is neutral. Above 7= basic . Below 7= acidic . The pH of a soil influences how nutrients dissolve in the soil.
    • 10. Soil Horizons
    • 11. Summarize the

    ×