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Chapter 13: Food, Soil Conservation, and Pest Management

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Chapter 13: Food, Soil Conservation, and Pest Management ... people require macronutrients and micronutrients in their diet. Chronic undernutrition (hunger): ... – PowerPoint PPT presentation

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Title: Chapter 13: Food, Soil Conservation, and Pest Management


1
Chapter 13 Food, Soil Conservation, and Pest
Management
We are nine meals away from anarchy. Lord
Cameron of Dillington
  • March 2009

2
Food Security
Today we produce more than enough food to meet
the basic nutritional needs of every person on
the earth.
3
Food Security
  • every person in a given area has daily access
    to enough nutritious food to have an active and
    healthy life.
  • Impediments to national food security
  • Poverty
  • War and corruption
  • Harmful environmental effects of agriculture
  • Climate change

4
Nutrition
  • To maintain good health, people require
    macronutrients and micronutrients in their diet.
  • Chronic undernutrition (hunger) people cannot
    grow or buy enough food to meet their basic
    energy needs
  • Malnutrition people who are consume a diet
    deficient in protein, calories, and/or other key
    nutrients
  • Usually a low protein, high carbohydrate,
    vegetarian diet
  • Affects 1 in 6 people in developing countries
    mostly children

5
Nutrition
  • Micronutrient deficiency Underconsumption of
    even small amounts of nutrients with necessary
    health benefits or essential functions in the
    body
  • 1 in 3 suffer from vitamin or mineral deficiency
  • Vitamin A increased susceptibility to childhood
    diseases/ blindness
  • Iron anemia, fatigue, infection, increases
    likelihood women die in childbirth
  • Iodine goiter, proper metabolism

6
Famine
  • a severe shortage of food in an area
    accompanied by mass starvation, many deaths,
    economic chaos, and social disruption.
  • Causes
  • Crop failures
  • Drought
  • Flooding
  • War
  • Other natural disasters

Sudan famine, 2000
7
Overnutrition
  • occurs when food energy intake exceeds energy
    use and causes excess body fat.
  • Consequences of overnutrition
  • Greater incidence of disease and illness
  • Lower life expectancy
  • Reduced quality of life
  • Disproportionate expenditure of capital
  • 93 of Americans fall into this
    category
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