Food Supply Issues Flashcards
Malnutrition
The lack of proper nutrition resulting from a poorly balanced diet.
Undernutrition
Below the minimum level of dietary energy (calorie) consumption. The dept. of health estimates this at 2250kcal.
Dietary Energy Supply
Estimate of average daily per person energy available for human consumption, in the total food supply during a given period.
Global agriculture production
Has been increasing since 1960s faster than world pop.
LEDCs produce and consume more than MEDCs as:
- higher pop. growth rates
- increasing GDP
- better responsiveness of demand to income growth (China, Brazil).
MEDCs have a slower growth of demand because…
- higher per capita consumption
- slow growth of population
- slower growth in demand for lots of commodities (N. America, Russia, Europe)
Last 15 years the agri net production was increasing by 2.2% annually
LEDCs : inc by 3.4%
MEDCs: inc by 0.2%
LEDCs are 67% of world agri net production
Average calorie consumption of richest countries?
More than 3000 per day per person.
N. America, Europe, Australia
Average calorie consumption of Sub-Saharan Africa?
Less than 2200 per day per person
Unbalanced diets in MEDCs and LEDCs
Cereals provide energy, don’t contain other nutrients.
Poor countries: Diets are 75% cereals (malnutrition).
Rich countries: fat and obesity (cv diseases, high blood pressure)
Global patterns of food supply
Enough food for everyone, but not distributed evenly so not everyone gets enough.
Global trade has grown in last 50 years, why?
- fail to include agri fully in negotiations which reduced taxes. Negotiated under general agreement on tariffs and trade (GATT).
- domestic support policies in MEDCs (help for producers in own countries).
- in LEDCs policies that promoted changing what they buy in, at expense of international trade.
- growth of agricultural exports in LEDCs will hold back as most of the produce (tea, cocoa) was aimed at saturated markets in MEDCs.
Agricultural trade is still important for who?
Australia, France, USA, New Zealand.
Geographical Flows of world food trade
- mid latitude grain areas to USA, Canadian prairies and W. Europe. The grain is for developed countries markets.
- tropical produce (Caribbean, S. America) to temperate regions (UK) as they can’t grow them.
- Plantations: bananas, tea, pineapples, palm oil. Development: cheap air transport allows luxuries to join to supermarket chains in developed countries.
- meat: tropical to temperate.
Genetic modification
Example: USA and China
It increases food production as if good/fast growth DNA is used, food will grow quicker.
Adv: solve food shortages, reduce chemicals used, large profits.
Disadv: health risks, long term effects of consumption are unknown, only available to rich farmers.
Land Reform
Example: Brazil
It increases food production by putting small bits of land together to form economically viable units.
Adv: fair distribution of ownership, ordinary farmers focus on domestic food, overcome labour and land inefficiencies.
Disadv: some people lose land.
Land Colonisation
Example: Java, Brazil, Indonesia (part of transmigration).
Increases food production as increase in land use, more for growing crops.
Adv: transmigration development schemes introduced by Dutch, offer migrants a house and plot to farm - increased production.
Disadv: destruction of rainforest.
Commercialisation
Example: Kenya (sweetcorn)
Increased food production for richer countries. Residents of Kiberia used sewage water to develop farming areas in squatter settlements - sell produce in markets.
Adv: 100,000 small scale farmers supported
Disadv: food security is reduced, taking land of production of food for locals.
Appropriate Technology
Diguettes or stone-lines
Example: Donkey Plough Charity, Sudan, Africa, Diguettes- Burkina Faso, Drip Irrigation - Kenya India
Increases food production as if technology for growing crops is suited to environment, it will grow better. Diguettes stop soil washing away, wet soil - crops grow better.
Adv: suited to local conditions, most families have donkeys so poor farmers can now grow, prevents soil erosion, irrigates land, saves fertiliser/water.
Disadv: small scale
Drip Irrigation
Example: Kenya, India, Zimbabwe
Increases food production as it aids growth of crops so they grow better, crops watered so less die - more food. Hose pipes in - drips at plants.
Adv: saves fertiliser/water, helps locals using it.
High technology (tissue culture) Micro-propagation
Multiplication of plantlets (increases food production).
Adv: quick, disease-free, rooted plantlets ready to grow.
Disadv: expensive labour costs, infections easily passed on.
Growth Hormone
E.g animals
Inject steroids - weight gain (more food)
Adv: increases milk yields.
Disadv: safe for humans to eat?
Agriculture
Production of food, animal food, fibre and other goods by the systematic growing of plants and the breeding and raising of animals.
Stewardship strategies farmers agree not to
- fill in grykes
- use of pesticides
- over stock their land
- graze animals on meadows after may
Stewardship strategies farmers agree to
- maintain dry stone walls
- cut meadows late for hay not silage
- reduce sheep on limestone paths
Ways farmers are diversifying
- speciality products
- local farm shops
Common agriculture policy (CAP) Aims
- inc agri productivity within member states
- ensure fair standard of living for farmers
- ensure reasonable consumer prices
- maintain employment in agri areas