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Geography Notes 24th August - Coggle Diagram
Geography Notes 24th August
Soil
A Mixture of Nutrients, Minerals, Water, and gases
Essential to Agriculture and Plant growth
There are more organisms in 1 tabelspoon of healthy soil than there are people on Earth
Soil appears to be dark brown because that is the topmost layer of the soil
Soil Profile
Surface layers: Organic Debris, Mainly Decomposed
Topsoil: Mineral particles Mixed with Organic Material
Subsoil: Compounds draining from Above Accumulate
Parent Material: Partly Weathered Rock
Bedrock: The bottom most layer
Functions of Soil
Medium for Plant growth
Regulator for Water supply
Nutrient Cycling
Habitat for Microorganisms
Atmospheric Modification
Foundation for Construction
Factors that cause Soil erosion
Wind
Water
Deforestation
Urbanization
Overgrazing
Small scale Agriculture
Large scale agriculture