Farming

Question 1

What is the impact of mechanisation

Answer 1

• more efficient
• requires larger fields (cut back more wildlife)
• only requires minimal effort

Question 2

Impact of removal of hedgerows

Answer 2

• Loss of habitat
• over 450,000km of hedgerows have been removed
• we need to do it for development room

Question 3

Loss of habitat impact

Answer 3

We need wildlife corridors for the animals left with no habitats from our hedge row removal

Question 4

Explain what the fallow period is

Answer 4

• leave fields idele so the diseases that developped during crop season die
• Intesnse supply and demmand doesn’t allow for this

Question 5

What is the impact of fertilizers

Answer 5

• they provide plants with nitrogen, phosphorous and poatssium to help grow
• can cause eutrophication

Question 6

Describe eutrophocation

Answer 6

• Nutrient load up, fertilizer nutrients flushed from land into rivers/lakes by rain
• Plants underwater flourish
• algae booms, blocks sun, plants die, no photosynthesis, no oxygen
• bacteria use up remainding oxygen to decompose plants
• death to ecosystem due to no oxygen

Question 7

What is the pattern of UK landscape use

Answer 7

• dominantly grassland and arable land (making up 50%)
• other 50% is made up from
  —> mountains, heaths and bogs
  —> semi natural grassland
  —> coniferous woodland
  —> Broadleaf
  —> urban areas

Question 8

Describe how modern farming has impacted natural ecosystems

Answer 8

• encourages clearing land for larger fields (for the big machines)
• Removal of hedgerows (450,000km)
• no fallow period due to intense supply + demand = disease spreads through crops
• uses of fertilisers has caused Eutrophication

Question 9

What is commercial fishing

Answer 9

• Has increased throughout 20th-21st Century
• led to development in fishing in the North Sea
• It uses large trawlers with thermal sensors and digital imagery
  —> helps identify where fish stocks are located

Question 10

How has commercial fishing affected ecosystems + environment

Answer 10

• Over fishing. Most cod are being killed before breeding age, so now sizes of fish caught are regulated
• large nets for tuna will snag on coral or capture dolphins/rare species = killing them
• fish live far away from where we have normally fished = fishing boats need to travel further away = more diesel is used = water pollution and increased use of fossil fuels

Question 11

When does water stress occur

Answer 11

When availability of water doesn’t meet demand

Question 12

What are areas of deficit

Answer 12

• locations where insufficient rainfall occurs to meet demands permanently

Question 13

What are areas of surplus

Answer 13

Locations where more rainfall occurs than is needed to meet demands permanently