Getting Dirty with SOILS. Older than dirt????!!!!

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Presentation transcript:

Getting Dirty with SOILS

Older than dirt????!!!!

Why Care?

I. Soil Profile the horizons…… O A E B C R

R E

Organics: Chelators Increases water absorption Releases high amounts of CO2

E

E

Diagnostic properties (B horizon) Texture Structure Color

Texture

Structure

Diagnostic properties (B horizon) Texture Structure Color

Munsell Color Chart

R

I. Soil Profile II. Soil Classification A. Method: non genetic

I. Soil Profile II. Soil Classification A. Method: non genetic B. Orders: 12 total

Soil Orders Entisols Inceptisols Mollisols Spodosols Alfisols Ultisols Oxisols Aridisols Vertisols Histosols Andesols Gelisols

Entisol

Inceptisol

Ultisols

Alfisols

Oxisol

Mollisol

Vertisol

Aridisols

Spodosols

Histosols

Gelisols

Andisols

Soils III. Pedogenic Controls and Regimes A. Factors of Soil Formation (Jenny, 1951)

Soils III. Pedogenic Controls and Regimes A. Factors of Soil Formation 1.Climate

Soils III. Pedogenic Controls and Regimes A. Factors of Soil Formation 1.Climate 2. Biota

Soils III. Pedogenic Controls and Regimes A. Factors of Soil Formation 1.Climate 2. Biota 3. Parent material

Soils III. Pedogenic Controls and Regimes A. Factors of Soil Formation 1.Climate 2. Biota 3. Parent material 4. Slope

Soils III. Pedogenic Controls and Regimes A. Factors of Soil Formation 1.Climate 2. Biota 3. Parent material 4. Slope 5. Time

III. Pedogenic Controls and Regimes A. Factors of Soil Formation B. Podzolization “refers to the removal of iron and/or aluminum from the A horizon downward to the B Horizon” Most common when annual ppt. exceeds 70 cm (27.6 in)

III. Pedogenic Controls and Regimes A. Factors of Soil Formation B. Podzolization C. Laterization Intense oxidation Organic accumulation is inhibited Silica is leached from the system

III. Pedogenic Controls and Regimes A. Factors of Soil Formation B. Podzolization C. Laterization D. Calcification

Soil Catena

IV. Factor of Time V. Geomorphic Sig. of Soils e.g.: building foundations hydrologic responses to ppt. permanence of road construction

The contrast…….