resource management Flashcards by Jasmine Singh

what does food security mean?

people have acsess to safe & nutritional food

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give 4 reasons for the increasing food demand?

-increase of population
-economic development improves
-a wider variety food is avaliable
-80 million more people a year
-

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how can technology impact food supplies?

-mechanization -improves effeciaccy
-not afforadable
-bio fuel
-transport and strorage improvements

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how does climate impact food supplies?

–natural distaters destroy crops
-draught
-0.2 degress warmer each decade
-weather

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how do pests and diseases can lead to food insecurity? (LICS)

LIC ‘s have a hotter enviroment encouage more pests
no money for pesticides
-catter can die from RIFT VALLEY FEVER
-worker can suffer form malaria

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what is wtaer stress

less than 1700 cumes = water stress

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what will happen in 2030 in terms of water stress?

50% of the world popualtion will live in areas of high water stress
-high poulation density
-industrilization

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how can conflict lead to food insecurity

crops and live stock destroyed
e.g russia targetted Ukrains crops and live stock(food production slowed)

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how can poverty affect food supply?

-cycle of poverty
-low money cant afford food
-weal, malnourished/undernourished = un able to work = no money

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what does under nutrition mean?

when smone doesnt eat a sufficent amount of calories

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malnutrition

when people recieve in correct balance of nutrients

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what does the term famine mean?

wide spread scarcity of food

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what causes famine?

-rising food prices
-conflict and social unrest
-HICS can influenve a change in prices(higher cost)
-demand greater than supply

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how can famine impact the econmy of a country?

-people arent working
-2011 60 riots in arab springs
-spending more money on food rather the economy

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what are the 3 main causes of soil erosion?

-overgrazing from cattle (get rid of grass etc)
-over cultivating (soil becomes exposed nutrients arent replaced)
-deforestation

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why is price of food increasing across the world?

-demand higher than supply
-costs of fertilisers-increase
-demand for meat increases
-storage and transport prices

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what does cash crop mean

crop for commercial purposes

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what is irrigation

the artifical watering of the land
—> can improve crop production by 100% to 400%

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whats drip irrigation?

little pipes centrally controlled by computers

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whats flood irrigation?

crops are planted in a natural/artifical lake

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how can irrigation damge the enviroment

-soil becomes water logged
-run off w fertilises in lakes= eutrifucation, algae bloom
-salination

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what is aeroponics

-plants in the air - greenhouse

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whats hydroponics

-plants grown in water,pebbles.sand

2 aims of green revolution

sustainablity & protect water, soil etc

advantages of aeroponics - large scale

- seasonable produce all year - excess water collected & reused - no soil needed - water efficiant

disadvantages of aeroponics

- limited space - not available for LIC's - expecsive - high energy prices

advantages of hydroponics

- plants grow faster - use less water - control speed of growth - less space required

outline 2 stragies used to increase crop yields [during the New Green Revolution]?

- 2006 India harvested water to re use - devolped GM seeds to withstand draught & disease

what does HYV stand for

high yeild varites

3 reasons for GM crops?

- prevent diseases = loss of crops - increase crop yeild - improved food security

give 3 reasons why ppl are worried abt GM crops

- worried abt impacts of health - may be allergic - cross contaminatio

why is appropiate technology is essential for sustianable food production?

- enables them to increase yield - should run itself

**ALMERIA - spain** - why is this area sutibable for large scale production of salad crops?

- arid climate - 3000 hours of sunlight - flat land - reliable - coastal = easy to ship for trade

2 ecomonic impacts of the large scale of agricultire devoplment **ALMERIA**

- **mutiplier effect** = quetenary high paying jobs are created - employment and job opps for locals = £1.5 billion a year

social impacts from ALMERIA thing

- infastructure = improved - workers = poor conditions/low wages

3 enviroment impacts for Almeria thing?

- natural water sources drying up - white plastic sheeting for greenhouses - plastic thrown into sea

sucesses of ALMERIA - of large scale agriculrural development

- lots of job opps - constructing, packing, shipping - cheap work forces - keeps food prices down

failures of Almeria agriculture development?

- enviromental costs are huge - expensive - poor conditions for migrant workers - leaking fertilizers/pesticides = EUTRIFICATION

what does the term sustainable food production mean?

method that protects land & natural resources so **food can be maintained for future generations**

whats **permaculture**

producting food using methods that works w nature

whats organic farming

growing crops/livestock w out use of chemicals/pesticides/fungicides

why do ppl not buy organic food?

more expensive

whats urban farming

production of food around settlements - creation of gradens/allotments

3 reasons why urban farming is becoming more popular

- generates jobs - attracts wildlife - promotes healthy eating

why is intesive meat farming unstatianble give 2 reasons?

- large amount of energy used - large amounts of waste need to be safetly removed w out polluting the enviroment

give 3 reasons why intensive fish farming is unstainable

- 7.7 billion kg of wildlife taken for sea / year - **trawling** destroys sea beds - salmon/prawn production = lead to water pollution form chemicals used

give 3 ways fish farming can become more sustainable

- return immature fish back to sea - monitor fish breeding grounds - use eco friendly fishing lines

name 1 enviromental benefit of eating more seasonable produce:

- reduces food miles and carbon footprint

why is so much food wated in the UK?

- theres a surplus of food - throw food instead of freezing it = average fam waste £700 on food/ year

what does food loos mean

the food watse **before** it reaches consumer

what does food waste mean

food thrown away after/by consumer

give 3 ways households can reduce foodwaste

- plan meals - use leftoverss/freeze - food store correctly[so it doesnt go off]

whats the LIC place that increases sustainable food

**Jamalpur in Bangladesh**

what is being done in Jamalpur to increase food supplies:

- rice/fish culture w help of charity **Pratical action** - small fish introduced to **paddy fields** = natural fertilsers [from their shit] - eat insects = reduce pests - & circulate oxygen

how sucessful as rice-fish culture been in JAMALPUR?

- increased rice yields by 10% - chemicals not needed = EN not harmed - farmers sell a surplus = earn more income and feed families