5.3A

Question 1

How is water budget calculated

Answer 1

P = E + R +/- S
(Where P is precipitation, E is evapotranspiration, R is runoff and S represents changes in storage over a period of time, usually one year)

Question 2

What does a national/regional scale water budget show

Answer 2

amount of water that is available for human use (for agriculture, domestic consumption etc.)

Question 3

What does a local scale water budget show

Answer 3

available soil water

Question 4

inputs to water budget

Answer 4

precipitation

Question 5

outputs to water budget

Answer 5

evapotranspiration

Question 6

What does a water budget show

Answer 6

the annual balance between inputs
(precipitation) and outputs (evapotranspiration)

Question 7

remember…

Answer 7

Water budgets which show the annual balance between inputs
(precipitation) and outputs (evapotranspiration) and ! their
impact on soil, water availability and are influenced by climate
type ( tropical temperate or polar examples) !