Soils -linking rivers and slopes

1. Soil development including germane processes and results; consider chronosequences.

1. “How to” for soil descriptions - horizons, texture, color, structure

.

What is a soil?

Namibia - bare schist slopes

THIN ROCKY SOILS“weathering limited”

Brazil- thick, soil mantled granite

THICK, CLAY-RICH SOILS

“transport limited”

1

2Horizons

climate 1

climate 1

climate 1

Organisms 1

http://www.regional.org.au/au/asssi/supersoil2004/, Tomins et al, Sydney AU

Basalt soil, OR

Floodplain silts, Tasmania

Limestone, Coonawarra, AUTerra rosa

Parent Material

Soil Chronosequencetime

1

Soil Development1

Explain how 5 factors influence soil properties and development

CL O R P T

2Texture

Soil Descriptions

2Texture

2Color

2Structure

Wednesday Lab

• Meet in lobby• Move to the field, Richmond• Cooler wetter weather, be prepared.• Wear sturdy shoes please, we’ll be

digging• Old clothes, this is a dirty one• Bakery stop after? $$$