river kennet Flashcards
(3 cards)
1
Q
location
A
southern England
drains an area of 1,200km^2 in Wiltshire and Berkshire
2
Q
info
A
-upper catchment is compromised by chalk, water filtered by chalk:
-fast flowing
-high o2 levels
-exponential clarity
native fauna
-Atlantic salmon
-otters
-brown trout
many settlements by the river which it supplies - largest Swindon with a population of 200,000
river supplies agriculture, industries, public needs
3
Q
impacts
A
extraction> recharge - caused flows to reduce by 14%
droughts in 2003 caused drop of 20%
reduction in groundwater has caused springs and seepages to dry up
-lower floods have reduced temporary areas of standing water
