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Physical geogrpahy
River exe
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Created by
Zack Pike
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Cards (40)
What is the name of the river that flows from Exmoor to Exmouth?
River Exe
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Where does the River Exe flow from and to?
It flows from
Exmoor
South to
Exmouth
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What type of rainfall is characteristic of the upper course of the River Exe?
High gradient rainfall
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What is a notable feature of the middle course of the River Exe?
Steep-sided valleys
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What is a characteristic of the lower course of the River Exe?
Urbanized area
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What is the significance of tributaries in the River Exe's drainage area?
They contribute to a high drainage area
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When does the River Exe experience high discharge?
In
winter
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What is the discharge level of the River Exe like in summer?
Low
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What does the hydrograph of the River Exe indicate?
It shows high discharge in
winter
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What is a characteristic of the drainage basin of the River Exe?
High
median altitude
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What is the median altitude of the River Exe's drainage basin?
17 cm
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What role does woodland play in the River Exe's drainage basin?
It contributes to
interception
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What percentage of the River Exe's drainage basin is farmland used for grazing?
80%
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What is the urbanization percentage in the River Exe's drainage basin?
45%
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What type of rock predominates in the River Exe's drainage basin?
95%
impermeable rock
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How does urbanization affect flood risk in the River Exe area?
It
increases
flood risk
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What agricultural practice contributes to nutrient runoff in the River Exe's drainage basin?
Romaff lerosion
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What nutrients are primarily involved in runoff from agriculture in the River Exe area?
Nitrogen
and
phosphorus
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What is the purpose of water abstraction in the River Exe area?
Public supply
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What is the purpose of flood relief channels in the River Exe area?
To protect
urban areas
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What is a benefit of restoring moorland drainage ditches?
They
help
retain
more
water
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What is the aim of restoring moorland drainage ditches in the Exe catchment?
To reverse
negative
impacts
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What is the purpose of rewetting peatlands in the River Exe area?
To slow down
runoff
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What environmental benefit does peat provide?
It sequesters
carbon
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How does rewetting peatlands affect flood risk mitigation?
It
retains
more water
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What overall benefit does improving peatland health provide?
Improves
hydrological
and
ecological
health
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When was the Wimbleball Reservoir constructed?
1974-79
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What river does the Wimbleball Reservoir dam?
River
Haddeo
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How much water can the Wimbleball Reservoir hold?
21,900
mega litres
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What is the purpose of the dam at Wimbleball Reservoir?
To regulate water supply for
Exeter
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How does the dam at Wimbleball Reservoir control the flow of the River Exe?
By
releasing
water
during
low
flow
periods
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What is one of the benefits of water supply management at Wimbleball Reservoir?
Flood risk reduction
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What are the environmental benefits of the Wimbleball Reservoir?
It provides
ecological
benefits
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What does "Romaff lerosion" likely refer to in the context of agriculture?
It likely refers to
soil erosion
caused by agricultural practices.
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What does "Dlock drainage ditches" likely refer to in the context of the River Exe?
It likely refers to
blocked
drainage ditches that need restoration.
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What does "fem Lots of surface" likely refer to in the context of runoff?
It likely refers to the increased surface runoff due to
urbanization
.
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What does "piblic Supph" likely refer to in the context of water abstraction?
It likely refers to
public supply
of water.
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What does "agricuitoneal inigua" likely refer to in the context of flood protection?
It likely refers to
agricultural
land use practices that affect flood risk.
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What does "water supply regulated for exete by dam" likely refer to?
It likely refers to the regulation of water supply for
Exeter
by the dam.
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What does "as wull as controling flow of River exe" likely refer to?
It likely refers to the
dam's
role in controlling the flow of the
River Exe
.
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