19. Resource Management Flashcards
What is the general trend for food demand in the UK?
- because the population is rising the demand for food is rising
- The UK imports aroynd 40% of its food
What are food miles?
- distance travelled by food imported to a different country
What is the impact of importing food?
- expensive (air transport as food goes bad )
- Adds to carbon footprint(energy for commercual farming + transport)
Describe the Kenya Vegetable case study (what, who, where,why)
- growing of vegetables such as mangetout is a large source of income for Kenya
- UK consumers are willing to pay more even when they are not in season for them
- Kenyan farmers earn very little(12%) of the cost compared to the supermarket which earns 45%
What are the 2 ways the UK is responding to the food challenges?
- due to concern over dependency on foreign food imports, the UK is trying to source food locally by:
- Agribusiness - farms run as commercial businesses, with modern tech and chemicals
- Organic Produce - grown without chemicals and more expensive
What is the Lynford House agribusiness case study?
- flat fertile land is intensively farmed to maximise crop yield and profit
- chemicals are widely used
- machinery costs are high but make the farm very efficient
- invested in a resovoir
What is the Riverford Organic farm case study?
- supplies locals in Devon with organic food and dairy weekly
- reduces food miles, supports local farmers, provides local employment and builds a stronger link betweeen consumer and grower
What is the general trend for water demand in the UK?
- increasing as population is growing, more houses are being built and an increase in use of water intensive domestic appliances
- 21% of water is wasted through leakage
What is the distribution of water in the UK?
- the north and west of the UK have a water surplus due to high rainfall and low population density
- the south and the east have high pop density and low rainfall leading to water stress
How can we save water?
- use of domestic water meters
- inceasing use of recycled water
- more efficient domestic applicances
- waste water/grey water can be recycled (like from the sink can be used in the toilet)
What are the 3 reasons to oppose water transfer?
- effect on land and wildlife (river habitats)
- high costs
- greenhosue gases released in pumping water over long distances
What is water transfer?
- movement of water from an area of high supply to an area of high demand
In what 5 ways does the environment agency manage water quality?
- monitoring the river water quality
- filtering water for sediment
- purifying water using chlorine
- restricted recreational use on the uses of water
- strict regulations on water use
How can some water sources be contaminated?
- leaching from underground old mines
- discharge from industrial sites
- runoff from chemical fertilisers from farms
- water used for power station cooling released back into rivers
What is the general trend in energy demand in the UK?
- energy consumption has fallen while energy demand has increased as there has been a decline in heavy industry and an increase in energy conservation
How has the UK’s energy supply mix changed?
- gone from dependent on fossil fuels (mainly coal) to large amounts of power through renewable sources (mainly wind)
What is the main reason behind the UK’s energy mix switch?
- large amounts of fossil fuel reserves have been used, and there has been a large decline in coal
- the UK is not energy self sufficient
What is fracking?
- the process of removing reserves of natural gas from from shale rocks by using high pressure liquids to fracture the shale and release the gas
State 3 reasons why fracking is controversial
- possibility of earthquakes
- pollution of underground water sources
- high costs of extraction
What is the defintion of a resource?
- a stock or supply of something that has value or purpose (mainly food, water and energy)
How many people in the world have malnutriton or are malnourished?
- 2 billion have malnutrition
- 1 billion are malnourished
What are the 2 types of water scarcity and where?
- Physical Water scarcity - lack of water such as deserts (middle east mainly)
- Economic Water Scarcity - cannot afford to exploit water supplies (Africa, asia, SA and Austrailia)
There is large difference in usage of energy and water between…
…LIC’s to HIC’s
