Food Resources

Nutritional Needs

WHO

3 billion malnourished

famine

anemia

Food Security

access to sufficient, safe and nutritious food & diet meets needs for healthy lifestyle.Insecurity: do not have adequate access to food.

Green Revolution

Machinery

Fertilizers

organic

synthetic

use fossil fuels and are more likely to carried by runoff.

Pesticides

insecticides

herbicides

broad-spectrum

selective

causes a cyclical effect

Monocropping

Irrigation system

allowed farming in areas
not adequate before

deplete groundwater& aquifers

waterlogging

salinization/ salt intrusion

Alternative Farming

Intercropping

Crop Rotation

Agroforestry

Contour Plowing

Subtopic

Desertification

shifting agriculture nomadic grazinglow pop. and subsistence farming

CAFO's
(concentrated animall feeding operations)

High density farming
-ethical?

Antibiotic
-resistence?

Waste 2000 tons

runoff can contaminate water resources

Alternatives

Cage free

free range

less disease

more sustainable

less antibiotics

more land

Causes of Malnourishment

Poverty

Lack of resources

Starvation

Politics

War refugees

Poor governance

Diverted

Animal farming

Biofuels

GMOs

+ves

Increased yields

Better quality

Increased profits

-ves

human safety

biodiversity

regulation

Intergrated Pest Management(IPM)

Minimize pesticide inputs

Crop Rotation

Intercropping

Effects

lower pesticide use

Higher yields

Fish & Shellshish

3rd major food source

fishery collapse

by catch

Aquaculture

Fish farming

seaweeds

shellfish