Week 1 And 2

Weathering, additions, translocation,transformation, losses

Particles and minerals move down within the profile (earthquakes)

Minerals are changed (adding fertilizer)

San Joaquin series

mineral matter,organic matter, water, and air

Composed of large and small particles, occupies 40-60% of soil volume

Derived from remains of dead plants and animals, it is dark brown and occurs mostly in the surface of soil. 1-5% of dry mass soil

Physical support, Air regulation, water movement, temp moderation, protection from toxins,supplies essential nutrients

Soil pores allow CO2 to escape and oxygen to enter the root during respiration. Good drainage also helps

The soil provides insulation and it protects deeper roots from extreme hot or cold conditions that occur at the surface

The soil helps in decomposing and adsorbing organic toxins and provides ventilation for toxic gases

The ability for soil to supply essential nutrients for plant growth when temp and other conditions are favorable

Ability for the soil to produce a certain amount of yield crops under management

Organic material, formed by fallen plants and animals. Undergoes varying physical and biological processes. Dark in color

Also known as the top soil, and it has a friable consistency and is the region for root activity. 20-25 cm deep

Also known as the ILLUVIAL and subsoil. It is formed below the E horizon and it is the zone for accumulation. It has the highest clay content among other horizons

Aka the Parent Material. It is less weathered, does not have soil structure, and it is likely rock material that can also contain partially disintegrated parent material transported by wind or water

Also known as the ELUVIAL horizon. It is the zone of removal and has a light color or bleached appearance. It contains dissolved minerals and clay, and it has a lot of iron

Provides physical support by anchoring the root system. Deep soil provides better support

Deep soils store enough water to allow plants to survive longer during the drought conditions

True