water balance Flashcards
1
Q
what is a river regime?
A
variability in discharge over a year
2
Q
what does a soil moisture graph do?
A
- yearly
- specific place
- precipitation
- potential evapotranspiration
3
Q
what is a storm flood hydrograph?
A
discharge of river through a flood
4
Q
discharge?
A
volume of water passing specific point at given time
5
Q
physical influence of storm hydrograph?
A
- size/shape of basin
- vegetation
- precipitation
- rock type
- density
- saturation
6
Q
human influences of storm hydrograph?
A
- deforestation
- agriculture
- flood engineering
- urbanisation
7
Q
what does soil drainage do?
A
removes excess water from soils
8
Q
advantages of soil drainage?
A
- improves aeration of soils
- easier to grow crops
9
Q
disadvantages of soil drainage?
A
- flooding
- artificial
- flashier
10
Q
what is water abstraction?
A
- water removed for human purposes
- empties wells
- water tables shrink
- saline intrusion
11
Q
deforestation?
A
- less interception
- increased discharge
- new vegetation be small
