human factors that affect water cycle over time

Question 1

what are the 3 human factors that affect the water cycle over time?

Answer 1

farming practices

land use change

water abstraction

Question 2

how do farming practices affect water cycle over time?

Answer 2

ploughing of fields = breaks up soil = more infiltration = reduces runoff

crops = increase infiltration + interception = reduces runoff

pastoral farming (cattle) = compact soil = decreasing infiltration = increases runoff

Question 3

how does land use change impact the water cycle over time?

Answer 3

deforestation = reduces interception = increases amount on surface

urbanisation = buildings + roads = impermeable surfaces = decreases infiltration = increases runoff = flood risk increases

Question 4

how does water abstraction impact the water cycle over time?

Answer 4

more water abstracted = meet demand = population density = high = reduces amount of water stored in lakes , rivers etc

high demand in dry seasons = depletion further