resource management Flashcards
what does food security mean?
people have acsess to safe & nutritional food
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
-
how can technology impact food supplies?
-mechanization -improves effeciaccy
-not afforadable
-bio fuel
-transport and strorage improvements
how does climate impact food supplies?
–natural distaters destroy crops
-draught
-0.2 degress warmer each decade
-weather
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
what is wtaer stress
less than 1700 cumes = water stress
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
how can conflict lead to food insecurity
- crops and live stock destroyed
e.g russia targetted Ukrains crops and live stock(food production slowed)
how can poverty affect food supply?
-cycle of poverty
-low money cant afford food
-weal, malnourished/undernourished = un able to work = no money
what does under nutrition mean?
when smone doesnt eat a sufficent amount of calories
malnutrition
when people recieve in correct balance of nutrients
what does the term famine mean?
wide spread scarcity of food
what causes famine?
-rising food prices
-conflict and social unrest
-HICS can influenve a change in prices(higher cost)
-demand greater than supply
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
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
