3.a Land use changes

Question 1

urbanisation

Answer 1

conversation of land use from rural to urban e.g farms

Question 2

urbanisation (water)

Answer 2

-surfaces are impermeable so no infiltration
- increases river levels
- low rates of ground water storage

Question 3

urbanisation (carbon)

Answer 3

• reduced amounts of organic carbon
• increased release of carbon due to factories and homes

Question 4

farming

Answer 4

turning forests in farm land
- reduces biodiversity

Question 5

farming (water)

Answer 5

• crop irrigation
• water is extracted by crops from soil storage
• interception rates fall compared to forests
• ploughing increases rates evaporation which accelerates run off

Question 6

farming (carbon)

Answer 6

• reduces carbon storage in forests
• soil carbon is reduced due to ploughing

Question 7

forestry

Question 8

forestry (water)

Answer 8

• rates of rainfall interception increase
• increased evapotranspiration
• clear felling increases sudden changes to the local water cycle

Question 9

forestry (carbon)

Answer 9

• most carbon is stored in tree trunk
• are a carbon sink but for only 100 years ( rotate)