Food resources (factors affecting intensity of food) Flashcards

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1
Q

Factors affecting intensity of food production and supply?

A
  • —> physical
  • —> social
  • —> economic
  • —> political
  • —> technological
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2
Q

physical factors?

A
  • —> climate
  • —> soils and drainage
  • —> relief
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3
Q

climate

A

Climate: average condition of the atmosphere over a long period of time

  • —> temp that regularly falls below 5°C make it difficult for crops to grow
  • —> high temp & high rainfall conducive for plant growth
  • —> However, temp required for growth varies among crops

EG

  • —> crops like peas, strawberries and brocolli require cooler climate
  • —> optimal temp required for growing soybean is 25°C to 28°C
  • —> greenhouse create optimal conditions for plant growth
  • —> USA, Canada, Netherlands
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4
Q

soils and drainage

A

Fertile soil

  • —> depends on availability of air, water, nutrients from minerals in the soil
  • —> rich in minerals
  • —> minerals essential for plant growth (N, P, K)
  • —> found in floodplains along a river, in areas near volcanoes

Soil drainage

  • —> ability of soil to retain or drain off water
  • —> improper soil drainage may hinder growth of crops
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5
Q

soil drainage examples

A
  • —> Mekong Delta, Vietnam
  • —> flat terrain
  • —> large water supply
  • —> fertile soil
  • —> high production of rice

Oats:

  • —> sandy soils
  • —> well drained

Rice

  • —> more clay
  • —> retain large amounts of water
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6
Q

Relief

A

Relief: slope and altitude of a land surface

Slope

  • —> slopes modified to create flat land for farming
  • —> Terracing: cutting of steps into a hillside to create flat land
  • —> allows unsuitable slopes to be used for farming
  • —> relief steeper: rain more likely to remove topsoil
  • —> topsoil is the layer of soil rich in nutrients

Altitude
—-> altitude increases, temp decreases

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7
Q

relief examples

A

slope

  • —> Longji rice terraces, China
  • —> Sapa, Vietnam
  • —> Banaue Rice Terraces, Philippines

altitude
—-> Cameron highlands: strawberry plantations

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8
Q

political factors

A
  • —> govt policy

- —> ASEAN

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9
Q

govt policy

A
  • —> agriculture policy

- —> food policy

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10
Q

agriculture policy

A

agriculture policy: policies pertaining to domestic agriculture

government:

  • —> decide how limited resources like money and land could be used
  • —> influence intensity of food production
  • —> may choose to channel resources into educating farmers on more efficient ways of farming
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11
Q

agriculture policy examples

A
  • —> India
  • —> Punjab Agriculture Department
  • —> 2012
  • —> ensure greater productivity from its farmland
  • —> start education for its wheat farmers
  • —> farmers taught about best available seed varieties, pesticide treatment and irrigation methods
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12
Q

food policy

A

Government decisions affect food:

  • —> production
  • —> procession
  • —> distribution
  • —> package, purchase
  • —> security

ways to ensure food security

  • —> stockpiling
  • —> diversifying source of food supply

Stockpiling: storage of food for emergencies

Diversifying food supply:

  • —> importing food from diff sources
  • —> buffer against food shortage and price fluctuations
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13
Q

food supply example

A
  • —> Singapore
  • —> in the past, SG relied on Malaysia for vegetables
  • —> imports from China, USA
  • —> NTUC Fairprice purchases vegetables through contracts with Indonesian farmers
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14
Q

ASEAN

A

—-> organisation of 10 SEA countries

Aims:

  • —> increase economic growth
  • —> increase social progress
  • —> foster cultural development
  • —> protect regional peace and stability
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15
Q

ASEAN examples

A
  • —> 2011
  • —> ASEAN signed agreement w China, Japan, South Korea
  • —> the ASEAN plus three emergency rise reserve (APTERR)
  • —> it is a commitment from big rice producers to provide rice to countries that signed the agreement
  • —> During a disaster, reserve will be used to provide rice to countries that have signed the agreement
  • —> China: 300 000 tonnes
  • —> Thailand: 15 000 tonnes
  • —> SG: US$ 107 500
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16
Q

tech advances

A
  • —> high yielding varieties
  • —> fertilisers
  • —> pesticides
  • —> irrigation
  • —> mechanisation
  • —> Genetically modified food
17
Q

high yielding varieties (HYVs)

A

—-> improved strains of crops like rice, wheat and other cereals

Developed:

  • —> through cross-breeding of selected varieties found to exhibit favourable characteristics
  • —> favourable: resistance to pests, shorter growing season
18
Q

HYVs example

A
  • —> wonder rice
  • —> growing season: 100 days
  • —> non HYVs: 120 days
  • —> IR8
  • —> 105 days for HYVs, 130 days for non HYVs
  • —> success in India
  • —> saved India from famine
  • —> promoted throughout Asia
19
Q

Fertilizers

A
  • —> substances added to soil to provide nutrients for healthy plant growth
  • —> nutrients in plant depleted gradually
  • —> application of fertilizers bring nutrients back to soil
  • —> increase crop yield
20
Q

Pesticide

A
  • —> chemical substance to kill insects and small animals that destroy crops
  • —> Herbicides: kill weeds
  • —> California, USA
  • —> pesticide Malathion
  • —> widely used in 1980s
  • —> address fruit fly problem
21
Q

irrigation

A

it is the method of supplying water to the land other than by natural means

methods:

  • —> flood irrigation
  • —> centre-pivot irrigation