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Chapter 11 - The Foundation for Land Ecosystems - Coggle Diagram
Chapter 11 - The Foundation for Land Ecosystems
5 Golden Rules of the Tropics
Keep soil covered
Minimum or no-till
Mulch for nutrients and cover
Maximize biomass production
Maximizing biodiversity
Soil
Unconsolidated cover of earth, made up of mineral and organic components, water and air; capable of supporting plant growth
90% of worlds food is from land-based agriculture
functions: medium for plant growth, engineering medium, organism habitat, recycles nutrients and water, water purification, modifier of atmosphere
Soil forming factors
climate
Biota
Parent materia
Topography
Time
culture/human activity
Composition
air 25%
water 25%
Mineral particles 45%
Organic matter 5%
organisms 10%
roots 10%
Humus 80%
properties
soil textural triangle
structure
color
profiles
Soil Issues
agriculture
construction
industry/mining
erosion
splash, sheet, rill, gully
soil & farming policies
soil and water resources conservation act
conservation reserve program
wildlife habitat incentives program
conservation stewardship program