Using Figure 6a and your own knowledge, evaluate the use of SUDS in achieving the benefits shown in Figure 6b - AQA - A-Level Geography - Question 3 - 2019 - Paper 2
Question 3
Using Figure 6a and your own knowledge, evaluate the use of SUDS in achieving the benefits shown in Figure 6b.
Figure 6a shows an example of a sustainable urban dra... show full transcript
Worked Solution & Example Answer:Using Figure 6a and your own knowledge, evaluate the use of SUDS in achieving the benefits shown in Figure 6b - AQA - A-Level Geography - Question 3 - 2019 - Paper 2
Step 1
Evaluate the use of SUDS in achieving 'Enhanced biodiversity'
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Answer
SUDS such as swales and green roofs can enhance biodiversity by providing habitats for various species. By incorporating native plants, these systems attract insects and birds, contributing to a more diverse ecosystem.
Step 2
Evaluate the use of SUDS in achieving 'Improved water quality'
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Answer
SUDS help filter pollutants from stormwater before it enters waterways. Features like infiltration trenches and retention basins allow sediments and contaminants to settle, significantly improving the quality of water that enters natural systems.
Step 3
Evaluate the use of SUDS in achieving 'Improved air quality'
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The vegetation in SUDS systems, such as swales and green roofs, can absorb pollutants and carbon dioxide, thus helping to enhance air quality. This vegetation contributes to lowering urban temperatures and maintaining a healthier environment.
Step 4
Evaluate the use of SUDS in achieving 'Flood risk management'
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Detention basins within SUDS serve to store excess water during heavy rain events. By slowing down the flow of runoff, these systems can significantly reduce the risk of flooding in urban areas, making them effective for flood risk management.
Step 5
Evaluate the use of SUDS in achieving 'Drought management'
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By maintaining water in detention basins and promoting infiltration, SUDS can help manage water resources during drier periods. They can recharge groundwater supplies, making them beneficial for drought resilience.
Step 6
Evaluate the use of SUDS in achieving 'Recreation opportunities'
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Answer
SUDS can create green spaces that serve multiple purposes, including recreational areas for the community. Parks and swales not only provide aesthetic value but also serve as venues for outdoor activities.
