Weathering and Soil Formation

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Farming techniques to help reduce soil erosion

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Presentation transcript:

Weathering and Soil Formation Chapter 10 Weathering and Soil Formation

Chap 10, Sec 4 (Soil Conservation) Objectives: What are the 3 benefits of soil? Describe/illustrate 5 methods of soil prevention and loss

Provides nutrients for plants Provides plants/animals a home 3 benefits of soil: Provides nutrients for plants Provides plants/animals a home Provides place for water storage If soil is not cared for, humans will not have food to eat! (Paste your soil conservation techniques peek-a-boo here)

no-till farming (shown here in picture) contour plowing terracing cover crops crop rotation

no-till farming (shown here in picture) - a way of growing crops on a year to year basis without disturbing the soil through tillage

contour plowing (shown here in picture) - plowing and/or planting using curves across the slope of a hill

cover crops (shown here in picture) - grasses, legumes, or green plants that are planted to help soil in many ways (green manure)

terracing (shown here in picture) - cutting land into a series of flat surfaces, that resemble steps, for more effective farming