1.1.23

Case Study: The River Eden - Management

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Impacts of Management Strategies on the River Eden

The River Eden is vulnerable to bursting its banks. Cumbria's climate is wet, precipitation is high and the rocks are impermeable, leading to a lot of runoff. How is the river managed?

Flood walls and embankments

Flood walls and embankments

  • Flood walls and embankments are artificial barriers built on river banks.
  • They effectively increase the height of the river banks.
  • Carlisle is currently protected by 10 kilometres of flood walls and embankments.
  • In 2019, a new £25 million flood defence programme was being developed.
Reservoirs

Reservoirs

  • A dam is a large earth, stone or concrete wall built across a river in the upper course. Behind the dam, a reservoir (man-made lake) forms.
  • Downstream of reservoirs, water flow is limited and there is not much material left to be deposited. This can lead to increased erosion and decreased build-up of the floodplain.
  • South-east of Carlisle, a reservoir has been created by damming Castle Carrock beck.
Planting trees

Planting trees

  • Planting trees in river valleys increases interception of rain water and the lag time between rain falling and it making its way into the river channel.
  • As a result, the energy of the river will decrease and so meanders will form more slowly.
  • £500,000 was spent planting 1,000 trees near the River Eden, trying to reduce flooding and soil erosion.
Channel management

Channel management

  • Channel straightening involves removing bends and meanders by adding artificial straight channels.
    • Channel straightening was common in the River Eden basin in the past.
  • Artificial meanders increase deposition by decreasing a river's velocity.
    • Recently, artificial meanders have been installed to try to restore the Eden basin to its natural state.
Jump to other topics
1

Physical Geography

1.1

River Environments

1.1.1Weathering1.1.2Mass Movement1.1.3Erosion1.1.4Transportation1.1.5Deposition1.1.6River Landforms: Waterfalls & Gorges1.1.7River Landforms: Interlocking Spurs1.1.8River Landforms: Flood Plains1.1.9River Landforms: Point Bars1.1.10River Landforms: Levees1.1.11River Landforms: Meanders1.1.12River Landforms: Oxbow Lakes1.1.13River Landscape Changes: Long Profile1.1.14River Landscape Changes: Cross Profile1.1.15Vertical & Lateral Erosion1.1.16Flood Risk Factors1.1.17Human Activities on Rivers1.1.18River Management: Hard Engineering1.1.19River Management: Soft Engineering1.1.20Case Study: The River Eden - Landforms1.1.21Case Study: The River Eden - Climate1.1.22Case Study: The River Eden - Geology1.1.23Case Study: The River Eden - Management1.1.24Case Study: The River Eden - Human Activity1.1.25End of Topic Test - River Environments
1.2

Coastal Environments

1.2.1Weathering1.2.2Mass Movement1.2.3Erosion1.2.4Deposition1.2.5Longshore Drift1.2.6Sediment Transportation1.2.7Wave Action on Coasts1.2.8Other Factors Influencing Coasts1.2.9Coastal Landforms: Wave-cut Platforms & Cliffs1.2.10Coastal Landforms: Headlands & Bays1.2.11Coastal Landforms: Caves, Arches & Stacks1.2.12Coastal Deposition1.2.13Spits, Bars & Sand Dunes1.2.14Human Activity on Coasts1.2.15Coastal Defences: Hard Engineering1.2.16Coastal Defences: Soft Engineering1.2.17Coastal Defences: Managed Retreat1.2.18Case Study: Holderness Coast Overview1.2.19Case Study: Holderness Coast Management1.2.20Case Study: Holderness Coast Defences1.2.21End of Topic Test - Coastal Environments
1.3

Hazardous Environments - Tropical Cyclones

1.3.1Characteristics of a Tropical Cyclone1.3.2Structure of a Tropical Cyclone1.3.3Physical Hazards of Tropical Cyclones1.3.4The Impacts of Tropical Cyclones1.3.5Responses to Tropical Cyclones1.3.6Vulnerability to Tropical Cyclones1.3.7Preparing for Tropical Cyclones1.3.8Case Study: Katrina1.3.9Case Study: Nargis
1.4

Hazardous Environments - Earthquakes & Volcanoes

1.4.1Earthquakes1.4.2Features of an Earthquake1.4.3Types of Earthquake1.4.4Case Study: L'Aquila1.4.5Case Study: Chile1.4.6Case Study: Japan & Pakistan - Planning1.4.7Volcanoes1.4.8Types of Volcanoes1.4.9Volcanic Eruptions
2

Human Geography

2.1

Economic Activity & Energy

2.1.1Increasing Energy Consumption2.1.2Non-Renewable Energy - Nuclear2.1.3Non-Renewable Energy - Fossil Fuels2.1.4Renewable Energy - Solar2.1.5Renewable Energy - Water & Bio2.1.6Renewable Energy - Hydro2.1.7Energy - Statistical Skills
2.2

Rural Environments

2.2.1Rainforests2.2.2Temperate Forests2.2.3Characteristics of a Temperate Forest2.2.4Goods & Services in Temperate Forests2.2.5Deserts2.2.6Tundra
2.3

Urban Environments

2.3.1Urbanisation in Different Countries2.3.2Causes of Urbanisation2.3.3Consequences of Urbanisation2.3.4Sustainable Urbanisation2.3.5Case Study: Rapid Urbanisation in Mexico City2.3.6End of Topic Test - Urbanisation
3

Global Issues

3.1

Fragile Environments & Climate Change

3.1.1Natural Causes of Climate Change3.1.2Effects of Climate Change on the Environment3.1.3Effects of Climate Change on People3.1.4Impacts of Deforestation3.1.5End of Topic Test - Climate Change3.1.6Increasing Water Supply3.1.7Sustainable Rainforest Management
3.2

Globalisation & Migration

3.2.1Globalisation - Transport3.2.2Globalisation - Communication Networks & Banking3.2.3Push & Pull Factors3.2.4TNCs & Globalisation3.2.5Tourism Landscapes3.2.6The Growth of Tourism3.2.7The Economic Benefits of Tourism3.2.8The Social & Cultural Benefits of Tourism3.2.9The Economic Costs of Tourism3.2.10The Social & Cultural Costs of Tourism3.2.11Managing Tourism - Sustainability3.2.12Managing Tourism - Quotas & Tourism Hubs
3.3

Development & Human Welfare

3.3.1Ways of Defining Development3.3.2Different Ways of Measuring Development3.3.3Environmental Factors Causing Uneven Development3.3.4Historical Factors Causing Uneven Development3.3.5Economic Factors Causing Uneven Development3.3.6Patterns of Development3.3.7How Can we Reduce the Global Development Gap?3.3.8Top-Down & Bottom-Up Development

Practice questions on Case Study: The River Eden - Management

Can you answer these? Test yourself with free interactive practice on Seneca — used by over 10 million students.

  1. 1
    How many trees have been planted near Dalston with the aim of reducing flooding and soil erosion?Multiple choice
  2. 2
    Where has a reservoir been created by damming Castle Carrock beck?Multiple choice
  3. 3
    Why is the River Eden vulnerable to flooding?Fill in the list
  4. 4
    How do flood walls and embankments serve to protect areas along the River Eden like Carlisle?Multiple choice
  5. 5
    What are the consequences of constructing reservoirs on the River Eden's upper course?Multiple choice
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Case Study: The River Eden - Geology

Case Study: The River Eden - Human Activity