Characteristics of Zonal Soils (AQA A-Level Geography): Flashcards
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3 components making up soil
3 components making up soil
Solids (minerals/organic), liquids (water), gases (air)
Soil horizons
Soil horizons
Distinct layers from additions, losses, transfers, changes
5 functions of soil
5 functions of soil
Cycle nutrients, regulate water, sustain life, filter, support
Zonal soil definition
Zonal soil definition
Major soil type over wide region, well-developed & mature
Meaning of 'chernozem'
Meaning of 'chernozem'
Black earth (Russian)
Chernozem characteristics
Chernozem characteristics
Deep black, >1m depth, clay-like, high organic matter, fertile
Chernozem parent material
Chernozem parent material
Loess (wind-blown sediments)
Where nutrients stored in latosol regions
Where nutrients stored in latosol regions
In vegetation, not in soil
Shifting cultivation farming duration
Shifting cultivation farming duration
2-3 years, then land abandoned to regenerate
Annual global topsoil loss from erosion
Annual global topsoil loss from erosion
36 billion tonnes