Food Supply Flashcards
What does agriculture mean?
The production of food,animal and other goods by the growing of crops and the rearing of animals
What does subsistence farming mean?
Where land will only produce enough for the farmer and his family to live on with very little or any left over
What does GM crops mean?
Crops that have genes from other plants or animals inserted into them to produce “better” versions - may cause long term environmental and health problems
What is the Green Revolution?
A movement which started in 1960s which resulted in increased yields in developing countries through use of high yield varieties,fertilisers and irrigation
How many calories does a person have per day?
2,795
What is the impact of trade on developing countries?
The rate of global agricultural trade has increased but only at the rate of output.
Trade in manufactured goods have grown dramatically.
Therefore agriculture trade has become less important in terms of producing wheat for the exporting country.
What are the geopolitics of food?
- Food aid
- Trade
- TNCs
Explain food aid:
Food aid can be a way of influencing recipient countries whilst at the same time riddling a developed country of surplus foodstuffs
Explain trade:
Global trade is controlled by developed countries. MEDCs often protect their farmers. Agriculture provides a third of export earnings for more than 50 countries (LEDCs)
What are TNCs?
Transnational corporations have the finances to buy land in LEDCs to be used for the production of cash crops which impacts the adversely on local farmers
Outline commercial farming:
- Aims to make large profit
- Often one single crop or animals
- Needs good communications and markets
- Typically plantations e.g sugar plantations in Barbados.
Outline subsistence farming:
- Land will only support enough to feed farmer and family
- Grows a large range of crops
- Lack of finances leads to lack of fertilizers and technology
- Range of crops causes balanced diet
Outline intensive farming:
- High labour input relative to the area of land being used
- Example: Wet rice cultivation
Outline extensive farming:
- Relatively low labour and capital inputs relative to the size of the area
- Example: Grain production on American and Canadian prairies
Outline arable farming:
- The growing of crops
- Intensive small scale e.g. market gardening
- extensive scale e.g. grains on American prairies
- Usually flat land with the best soils
Outline livestock farming:
- The rearing of animals
- Land less favourable for arable farming used#
- Intensive e.g. dairy farming
- Extensive e.g. cattle ranching in Argentina
Outline mixed farming:
- Both arable and livestock farming
- Tends to be used in MEDCs to reduce commercial reliance on one type of crop/animal
- Increases economic resilience and can increase profits
What is conurbations?
Extended urban area
What is horticulture?
Branch of agriculture that deals with the art,science and business of growing plants
What has increased food production?
- The green revolution
- Genetic modification
- Land colonisation
- Land reform
- Commercialisation
Appropriate technology solutions
What is the green revolution?
Refers to senes of research, development and technology transfer initiatives.
Occured between 40s and late 70s which increased agriculture production world-wide
What are the problems associated with the fertilizers in LEDCs?
- High cost of fertilizers from MEDCs to LEDCs
- Environmental impacts e.g rain washing nitrates into river courses.
What are the advantages of the green revolution?
- New strains of rice were introduced (IR8) which caused rice yields to treble
- Dwarf varieties can be grown closer together and therefore more crops can be grown
- HYVs withstand common crop disease
- Shorter growing season meant an extra crop can grow
What are the disadvantages of the green revolution?
- Increased use of chemicals damage the environment
- Overuse of irrigation led to salinisation of soil
- Agriculture biodiversity lost
- Mechanisation increased unemployment and therefore rural-urban migration increases