2007-11-03 05:10:02 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
watershed is the limit/extent of the groundwater around any watercourse this is usually determined by the topology, geology and vegetation of the local area. However the watershed is not a fixed boundary and can be changed by many factors
Including:-
The amount of rainfall
The nature of the underlying rock
The degree of vegetation
The altitude
Weather/Climate
Mans activity
deep mining
i.e open cast mining
gravel extraction
construction i.e. towns and cities
water extraction (i.e. pumping water from aquifers)
Dams / Pumped storage schemes
Theese can all be factors - Other geological factors can also affect the limit or change the position of the watershed in any given area - i.e. earthquakes / volcanoes can have a dramatic impact on the usual water courses and can cause the watershed in that are to change and move.
2007-11-03 07:02:34 · answer #1 · answered by David R 1 · 0⤊ 0⤋
A WATERSHED IS SIMPLY THE LAND A STREAM OR STREAMS AND THEIR TRIBUTARIES DRAINS.
2007-11-03 06:22:02 · answer #2 · answered by Loren S 7 · 0⤊ 0⤋
The surface if you are doing a test.
2016-03-01 04:00:57 · answer #3 · answered by Johanna 1 · 0⤊ 0⤋