Food Production Systems

Food Security
Means that every person in a given area has daily access to enough nutrientes in food to have an active and healthy life.

Under, mal, and overnutrition:
Undernutrition: Not enought food to meet their basic energy needs.
Malnutrition: Occurs when deficiencies in certain nutrients affect a person.
Overnutrition: Energy intakes surprass energy use.

Effects of diet defficiencies:
Vitamin A: Increased susceptability to common infections and can cause blindness.
Iodine: Essencial for hormone processes, causes bad growth. 
Iron: Causes anemia due to less iron in hemoglobin.

Famine
It is defined as a severe shortage of food and can be accompanied by mass starvation, deaths, economic chaos, social disruption, maluse of available resources, and cause mass migrations.

Systems of food production:
Croplands - Grain production
Rangelands - Livestock production
Fisheries - Fish production

Types of Agriculture (to be completed later)
Industrialized Agriculture - Large amounts of fossil fuel energy, water, fertilizers, and pesticides to produce single crops and livestock.
Plantation Agriculture -  A form of industrialized agriculture used in tropical developping countries and involves growing cash crops such as bananas, soybeans, coffee, cocoa, etc.

Green Revolution
 The Green Revolution can be described as the increase of yield per unit of area in a cropland that took part i different occasions in the last century. The lack of water, high costs for small farmers, physical limits such as soil support have limit the expansion of the green revolution.