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What are the environmental consequences of dam construction?
Habitat loss, altered water flow, disrupted fish migration, increased sedimentation.
How does dam construction affect local communities?
Displacement, changes in water availability, economic impacts (positive and negative).
What is the effect of sedimentation on hydropower generation?
Reduced reservoir capacity, decreased power generation, and increased maintenance costs.
How does altered water flow affect downstream ecosystems?
Changes in nutrient availability, habitat structure, and species composition.
What is the effect of dam removal on a river ecosystem?
Restoration of natural flow patterns, improved fish passage, and habitat recovery.
How does reservoir creation affect greenhouse gas emissions?
Decomposition of submerged vegetation can release methane, a potent greenhouse gas.
What are the effects of hydropower on water quality?
Changes in water temperature, dissolved oxygen levels, and nutrient cycling.
How does hydropower affect fish migration?
Dams can block fish migration routes, leading to population declines.
What is the impact of hydropower on local economies?
Job creation, increased tourism, and potential impacts on agriculture and fisheries.
How does hydropower affect flood control?
Dams can regulate water flow, reducing the risk of downstream flooding.
What are the environmental consequences of dam construction?
Habitat destruction, altered water flow, blocked fish migration, changes in water quality, increased sedimentation.
How does dam construction affect local ecosystems?
Changes water temperature, nutrient flow, and sediment deposition, impacting aquatic life.
What is the effect of dams on fish migration?
Dams obstruct fish migration routes, disrupting breeding cycles and population dynamics.
How do reservoirs impact greenhouse gas emissions?
Decomposition of submerged vegetation in reservoirs can release methane, a potent greenhouse gas.
What is the impact of hydropower on downstream water quality?
Altered water flow and oxygen levels can negatively affect downstream water quality.
How does dam construction affect local human populations?
Displacement of communities, changes in water availability, economic impacts, and altered recreational opportunities.
What are the steps in hydroelectric power generation?
Reservoir creation, water release, kinetic energy generation, turbine rotation, electricity generation, distribution.
Describe water flow in a hydroelectric dam.
Water flows from the reservoir, through a penstock, turns the turbine, and exits downstream.