getting dirty with soils
DESCRIPTION
Getting Dirty with SOILS. Older than dirt????!!!!. Why Care?. Why Care?. I . Soil Profile the horizons…… O A E B C R. E. R. Organics: Chelators Increases water absorption Releases high amounts of CO2. E. E. Diagnostic properties (B horizon). Texture Structure Color. Texture. - PowerPoint PPT PresentationTRANSCRIPT
Getting Dirty with
SOILS
Older than dirt????!!!!
Why Care?
Why Care?
I. Soil Profile
the horizons……OAEBCR
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
EntisolsInceptisolsMollisolsSpodosolsAlfisolsUltisolsOxisols
AridisolsVertisolsHistosolsAndesolsGelisols
Entisol
Inceptisol
Ultisols
Alfisols
Oxisol
Mollisol
Vertisol
Aridisols
Spodosols
Histosols
Gelisols
Andisols
Soils
III. Pedogenic Controls and RegimesA. Factors of Soil Formation (Jenny, 1951)
Soils
III. Pedogenic Controls and RegimesA. Factors of Soil Formation
1.Climate
Soils
III. Pedogenic Controls and RegimesA. Factors of Soil Formation
1.Climate2. Biota
Soils
III. Pedogenic Controls and RegimesA. Factors of Soil Formation
1.Climate2. Biota3. Parent material
Soils
III. Pedogenic Controls and RegimesA. Factors of Soil Formation
1.Climate2. Biota3. Parent material4. Slope
Soils
III. Pedogenic Controls and RegimesA. Factors of Soil Formation
1.Climate2. Biota3. Parent material4. Slope5. Time
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)
III. Pedogenic Controls and RegimesA. Factors of Soil FormationB. PodzolizationC. Laterization
•Intense oxidation•Organic accumulation is inhibited•Silica is leached from the system
III. Pedogenic Controls and RegimesA. Factors of Soil FormationB. PodzolizationC. Laterization D. Calcification
V. Geomorphic Sig. of Soils
fertilitybuilding foundationshydrologic responses to ppt.permanence of road construction
The contrast…….