Soils_1 - Soils and the Environment The Palouse, E....

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Soils and the Environment The Palouse, E. Washington
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What is soil? Soil scientist – any surface material that can support plant life Engineer –any unconsolidated surface material, overburden
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Why is soil important in environmental geology? Only practical medium for agriculture Foundation material for buildings, roadways, etc. Site material for waste disposal First material contacted by rainwater (surface water, groundwater) We’ll look at: How soil forms Aspects of soil fertility Water in soil Soil properties and strength Soil erosion Soil pollution
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Soils forms by weathering of parent material (rock) Soil forms in place Residual soil Sediment transported no transport Transported soil
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Weathering: Mechanical Chemical Biological
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Mechanical Weathering -- disintegration, fragmentation Increase of surface area aids chemical weathering
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Chemical weathering: role of water and acidity H + is cause of acidity Promotes dissolution of minerals
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This note was uploaded on 05/13/2011 for the course GEO 101 taught by Professor Hanson during the Spring '08 term at SUNY Stony Brook.

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Soils_1 - Soils and the Environment The Palouse, E....

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