Soil Science

Soil ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object]

II. Soil is composed of 4 different components. ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

III. Abundant life can be found in soil. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object]

IV. Plants depend on soil to provide 4 basic needs. ,[object Object],[object Object],[object Object]

V. Ag depends on soil to grow food, fiber, and other plants. ,[object Object],[object Object],[object Object],[object Object]

Non-ag uses of soil ,[object Object],[object Object],[object Object],[object Object]

Five factors that affect soil formation ,[object Object],Igneous sedimentary metamorphic

THE MAIN KINDS OF SOIL PARENT MATERIALS Parent material is formed by the disintegration and decomposition of rock

Newer and more productive Older and less productive

How do living organisms affect the soil? ,[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Weathering ,[object Object],[object Object]

Weathing (cont.) ,[object Object],[object Object],[object Object]

Weathering (cont.) ,[object Object],[object Object],[object Object],[object Object]

Climate (cont) ,[object Object],[object Object]

Climate (cont.) ,[object Object]

Physical Features of soil ,[object Object],[object Object],[object Object],[object Object],[object Object]

Colors ,[object Object],[object Object],[object Object],[object Object],[object Object]

Soil Texture ,[object Object],[object Object],[object Object],[object Object],Sand Silt Clay

Texture (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Texture (cont.) ,[object Object],[object Object]

Ribbon Method ,[object Object],[object Object],[object Object],[object Object],[object Object]

Ribbon testing Ball of clay made in fist Starting to form a ribbon Clay Ribbon (>2") Starting to make a ribbon from sand Ribbons are hard to form with sand (<1")

Soil Structures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Soil Profile ,[object Object],[object Object],[object Object]

Changes in soil ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Soil Degradation ,[object Object],[object Object],[object Object],[object Object],[object Object]

Construction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Contamination ,[object Object]

Soil Erosion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

V. Other Sources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Summary ,[object Object],[object Object],[object Object]

Soil Science

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Soil Science