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The Soils Around Us
Objectives
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Careful study of Chapter 1 in your text will provide an excellent understanding in each of the following essential areas:
- Functions of Soils in Our Ecosystem
- Medium for Plant Growth3
- Regulator of Water Supplies
- Recycler of Raw Materials
- Habitat for Soil Organisms
- Engineering Medium
- Soil as Environmental Interface
- Soil as a Natural Body
- The Soil Profile and Its Layers (Horizons)
- Topsoil and Subsoil
- Soil: The Interface of Air, Minerals, Water, and Life
- Mineral (Inorganic) Constituents of Soils
- Soil Organic Matter
- Soil Water: A Dynamic Solution
- Soil Air: A Changing Mixture of Gases
- Interaction of Four Components to Supply Plant Nutrients
- Nutrient Uptake by Plant Roots
- Soil Quality, Degradation, and Resilience
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