STUVIA 2024/2025
GEOG 350 Final Study Guide
Reduce wasted food
donate excess food
feed to animals
compost
landfill - ✔✔Food Recovery Hierarchy
40%
while 1/6 americans are food insecure - ✔✔*what percentage of US food is wasted each year?
SE Brazil, ring of deforestation on the edge of the amazon. - ✔✔*Ring of deforestation?
An area characterized by a lack of affordable, fresh and nutritious food. - ✔✔food desert
The Southern US
urban and rural poor - ✔✔*regionally in the US, where is food insecurity most common?
the ability to obtain sufficient food on a day-to-day basis - ✔✔food security
%
large-scale food shortages, massive starvation, social disruption, and economic chaos - ✔✔famines
general term for nutritional imbalances caused by lack of specific nutrients. - ✔✔malnutrition
2007
US subsidized corn for biofuels (ethanol) led to increases in price of corn, resulting in riots in mexico
because corn is a staple of the mexican diet. - ✔✔Mexican tortilla riots
wheat
rice
corn/maize (corn is king) - ✔✔Top 3 global foods
corn
wheat
soy - ✔✔top 3 foods in the US
Confined Animal Feeding Operation
-animals are housed and fed soy and corn for rapid growth
-greater risk of biohazards in CAFOs, like bacteria (reason we feed them so much antibiotics) -
✔✔CAFO
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, STUVIA 2024/2025
omega 3: found more in leaves, anti-inflammatory
omega 6: found more in seeds, pro-inflammatory, fatty acids; most of what is being fed to animals at
CAFOs - ✔✔Omega 3 vs Omega 6
The loose, weathered material on Earth's surface in which plants can grow.
the most precious resource in terms of food production. - ✔✔soil
- mineral grains weathered from rocks,
- partially decomposed organic molecules, and
- a host of living organisms. - ✔✔soil contains
sources that can regenerate over intermediate timescales 100-1000 years
•fresh water, forest products, agricultural crops, soils
-tropics=quick renewal time - ✔✔Semi-renewable resources
-sand and gravel
-silts and clay
-air
-water
%
-dead organic material
-soil fauna and flora - ✔✔the 6 components that make up soil
o - organic layer
a - top soil
e - eluviated layer
b - subsoil - ✔✔*Soil profile letters (horizons)
a - topsoil (organic-rich) horizon - ✔✔what soil horizon does most food come from?
removal of dissolved materials from soil by water moving downwards
-heavy rainfall can wash the soils of minerals, causing percolation as well.
-leaching down to soil profile - ✔✔leaching
waxy leaves to avoid nutrient/water loss - ✔✔adaptation against leaching
red and iron-oxide rich, nutrients are leached out - ✔✔tropical soils
Soils with thick (usually 10 inches or more), dark surfaces that have a base
saturation of 50 percent or more in the surface soil.
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