3.5 Food Resources
Key terms: ◦ Under-nourishment- food intake not containing enough energy ◦ Malnutrition- food intake lacking essential nutrients such as protein and minerals ◦ Import tariffs- imposed by MEDCs, make the import of food more expensive, which can have knock-on effects for exporting countries ◦ Export subsidies- provided by MEDCs to their farmers, make farm products from LEDCs uncompetitive ◦ Food security- the situation where all people have access to sufficient, safe, nutritious food to maintain a healthy and active life
Is this a case of the rich getting richer ◦ 75% of world’s population is inadequately fed and about 1 billion are going hungry ◦ Most of these in LEDCs ◦ Hunger-related death every 6 secs ◦ 10% increase in food prices=40 million more people in food poverty Who can absorb 10% better? MEDC or LEDC
Food Security ◦ Must be available (consistent sufficient quantities) ◦ Must have access ($$) ◦ How is it used (understanding of nutrition, water, sanitation) Agricultural Production (Who’s doing what?) ◦ Haves (US/Europe) Enough land and technology to maximize ◦ Rich have-nots (Japan/Singapore/China/Saudi) Don’t have the land or the development yet to maximize, but they have the $$ ◦ Poor have-nots (you can probably guess most of these) Can’t produce enough and can’t afford to import Food Crisis Fundamental Threats ◦ More poverty ◦ Developments in LEDCs are eroding ◦ Endangering political security
3 Big Influences on Food Supply ◦ Economic Demand for certain products has outgrown supply Costs for things like energy have driven up food costs Underdevelopment in LEDCs=poor productivity and infrastructure LEDCs make more % exporting than producing for local use ◦ Ecological Climate change=poor harvests Soil degradation Declining biodiversity ◦ Socio-political Import tariffs and subsidies creates advantages/disadvantages Inadequate international food relief Issues with resources such as rivers and aquifes
WHAT HAPPENS WHEN INDIA AND OTHER LEDWCs WANT TO CONSUME MEAT AND MILK?
It’s all about the number of trophic levels Remember the 10% rule (respiration, waste, etc.) ◦ Terrestrial Most food from low levels Crop farms vs. livestock farms Which is more efficient? There are other benefits to livestock such as milk, hides, and labor ◦ Aquatic Food generally harvested from higher levels Therefore, less energy efficient compared to terrestrial
Read the case studies on pages of Pearson & of Cambridge. Select two name food production systems to compare and contrast considering the following: ◦ Inputs and outputs of materials and energy ◦ System characteristics ◦ Evaluation of environmental impacts
Modern US ◦ Developed, high tech, high fossil fuel input ◦ Value speed and convenience ◦ Capitalism based revenue generation ◦ People removed from food production so don’t see negative results ◦ We are willing to compromise environmental health for the benefits now from pesticides, inorganic fertilizers, machine harvest etc. ◦ Recent shift to “Organic farming”
Shifting cultivation ◦ Developed long ago in rainforests ◦ Small area of forest cleared and used until nutrients depleted ◦ Work in circular pattern, return later once soil fertility is renewed ◦ Tradition and ritual are important in choosing a site ◦ Returning to previous site is important historical event when ancestors are remembered ◦ Forest has a spirit=strong respect for environment ◦ Very energy efficient ◦ Very few people involved today ◦ Current exploitation of rainforest has shifted these cultivators
Wet-rice ecosystem ◦ Rice cultivation dates back thousands of years ◦ High labor, low tech ◦ High pop densities=high demand for food ◦ Good growing conditions, although soil fertility is declining ◦ Rice is staple of diet and part of Asian culture ◦ Cooperation is necessary as plots of land for cultivation are small ◦ Family members will have their duties to ensure best yield ◦ Basis of many Indian dishes ◦ Associated with prosperity and fertility ◦ Frequent mention in literature