Getting Dirty with SOILS
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Transcript of Getting Dirty with SOILS
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Getting Dirty with
SOILS
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Older than dirt????!!!!
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Why Care?
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Why Care?
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I. Soil Profile
the horizons……OAEBCR
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R
E
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Organics:•Chelators•Increases water absorption•Releases high amounts of CO2
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E
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E
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Diagnostic properties (B horizon)
• Texture• Structure• Color
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Texture
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•Structure
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Diagnostic properties (B horizon)
• Texture• Structure• Color
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Munsell Color Chart
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R
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I. Soil Profile II. Soil Classification A. Method: non genetic
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I. Soil Profile II. Soil Classification A. Method: non genetic B. Orders: 12 total
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Soil Orders
EntisolsInceptisolsMollisolsSpodosolsAlfisolsUltisolsOxisols
AridisolsVertisolsHistosolsAndesolsGelisols
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Entisol
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Inceptisol
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Ultisols
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Alfisols
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Oxisol
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Mollisol
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Vertisol
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Aridisols
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Spodosols
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Histosols
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Gelisols
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Andisols
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Soils
III. Pedogenic Controls and RegimesA. Factors of Soil Formation (Jenny, 1951)
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Soils
III. Pedogenic Controls and RegimesA. Factors of Soil Formation
1.Climate
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Soils
III. Pedogenic Controls and RegimesA. Factors of Soil Formation
1.Climate2. Biota
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Soils
III. Pedogenic Controls and RegimesA. Factors of Soil Formation
1.Climate2. Biota3. Parent material
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Soils
III. Pedogenic Controls and RegimesA. Factors of Soil Formation
1.Climate2. Biota3. Parent material4. Slope
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Soils
III. Pedogenic Controls and RegimesA. Factors of Soil Formation
1.Climate2. Biota3. Parent material4. Slope5. Time
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III. Pedogenic Controls and RegimesA. Factors of Soil FormationB. Podzolization“refers to the removal of iron and/or aluminum from the A horizon downward to the B Horizon”
Most common when annual ppt. exceeds70 cm (27.6 in)
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III. Pedogenic Controls and RegimesA. Factors of Soil FormationB. PodzolizationC. Laterization
•Intense oxidation•Organic accumulation is inhibited•Silica is leached from the system
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III. Pedogenic Controls and RegimesA. Factors of Soil FormationB. PodzolizationC. Laterization D. Calcification
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V. Geomorphic Sig. of Soils
fertilitybuilding foundationshydrologic responses to ppt.permanence of road construction
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The contrast…….