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Question 7: River basin management (a) Explain the human factors which need to be considered when selecting a site for a major dam and its associated reservoir - Scottish Highers Geography - Question 7 - 2018
Question 7
Question 7: River basin management (a) Explain the human factors which need to be considered when selecting a site for a major dam and its associated reservoir. (b... show full transcript
Worked Solution & Example Answer:Question 7: River basin management (a) Explain the human factors which need to be considered when selecting a site for a major dam and its associated reservoir - Scottish Highers Geography - Question 7 - 2018
Step 1
Explain the human factors which need to be considered when selecting a site for a major dam and its associated reservoir.
Answer
When selecting a site for a major dam and its associated reservoir, several human factors must be considered:
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Population Density: It is crucial to evaluate the population density in the area. A site with low population density reduces the risk of displacing residents and minimizes social upheaval.
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Land Use: Understanding current land use is important. Agricultural land or protected areas may be negatively impacted by reservoir construction. Avoiding these areas can prevent conflicts.
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Economic Factors: The site's economic viability is essential. The cost of construction and operation must be analyzed, including access to resources and materials needed.
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Infrastructure: Existing infrastructure, such as roads and power lines, should be assessed to facilitate construction and future maintenance of the dam and reservoir.
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Community Consultation: Engagement with local communities is necessary to address concerns and gain support. This includes informing them about potential benefits and mitigating negative impacts.
Step 2
Discuss the socio-economic and environmental benefits created by the construction of a major dam and its associated reservoir.
Answer
Referring to the Three Gorges Dam in China, several socio-economic and environmental benefits arise from its construction:
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Hydroelectric Power Generation: The dam provides substantial hydroelectric power, reducing reliance on fossil fuels and contributing to energy security.
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Flood Control: The reservoir plays a crucial role in managing flood risks, protecting nearby communities and agricultural lands from seasonal floods.
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Irrigation: The dam enables efficient irrigation systems, enhancing agricultural productivity in surrounding areas, especially in arid regions.
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Economic Development: The project creates jobs during construction and operation, boosting local economies. It also promotes tourism, resulting in additional economic benefits.
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Transportation Improvements: The dam allows for improved navigation along the Yangtze River, facilitating the transportation of goods and enhancing trade.
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Environmental Mitigation: While large dams can impact ecosystems, efforts at Three Gorges Dam include habitat restoration initiatives, showcasing a commitment to environmental preservation.