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What's on, and in, the horizon? | NRCS

 

What's on, and in, the horizon?

  1. Is soil made through magic?

2. Does soil have parents?

3. What does the weather do to soil?

4. What's on, and in, the horizon?

5. How does soil help me keep my cool?

6. Do soils come in different colors?

7. How does water stay in the soil?

8. How does air get into the soil?

9. Why do plants like soil?

10. Do roots just help plants?

11. Does soil care about time?

12. Can we keep the soil from washing and blowing away?

13. What is soil conservation?

SK stands on a Soil Horizon and shows layers: O, A, B, CDid you know that there are horizons in the soil? They're named O, A, B, and C. O is the top horizon. It's about an inch thick made up of dead stuff that breaks down and keeps the soil "O"-so healthy. The A horizon is topsoil that's alive with roots, tiny microstuff like bacteria and fungi, and all kinds of critters like me. The A horizon is "A-OK" with me. Number three is horizon B. Plants and animals have a tough time getting through B. Why? "B"-cause it's very hard. See horizon C? You see, horizon C has less living stuff in it than O, A, and B. C is parent material that's made up of the rock and soil that formed the three layers above it.
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