The drainage basin system Flashcards
(6 cards)
1
Q
Define a drainage basin.
A
the area of land that is drained by a river and its tributaries
2
Q
How does a drainage basin work?
A
Its a large area around a river where water will move down it towards the river
3
Q
What is a soil moisture surplus in a drainage basin?
A
- precipitation exceeds evapotranspiration
- saturated land
4
Q
What is soil moisture utilisation?
A
- evapotranspiration exceeds precipitation
- dry land
5
Q
What is soil moisture recharge?
A
- precipitation exceeds evapotranspiration
- wet land
6
Q
What is soil moisture deficit?
A
- all soil moisture utilised by plants
- dry condition
