Soils

https://www.youtube.com/watch?v=dgO11tWjP9Q

Soil Soil is made of Weathered rock Organic remains Water Air Great variety of living organisms

Soil Formation Both chemical and physical weathering are involved Soils develop over time 100 to 400 years to form 1 cm of soil Fully developed soils consist of distinct horizons (layers)

Many thousands of years are necessary to form soils Bedrock = solid rock under soils

Soil Horizons Horizon = layer A horizon Top Soil – mature soil Large amount of organic remains called humus Contains the most living things

Soil Horizons B horizon - Subsoil Little organic matter

Soil Horizons C horizon Partly weathered bedrock

Soil Horizons Bedrock - solid rock under soils

Soil Types Soil types - depends on bedrock, climate, and the amount of life in soil

Residual Soil Transported Soil Composed of weathered bedrock and organic material from that region. Transported Soil b. Composed of weathered bedrock and organic material from another region. (Transported to an area)

New York State Soils Most are young Less than 10,000 years old Transported Soils from Glaciers