What Are Two Examples Of How Hydropower Can Damage An Ecosystem
Additionally when the water current is slowed behind the dam the entire native ecosystem is altered. Problems with hydro power Two major problems associated with hydroelectricity are relocation of inhabitants and damage on aquatic species.
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While hydropower dams are a renewable energy source that have the potential to supplant coal in the future they are not necessarily friends to the environment.
What are two examples of how hydropower can damage an ecosystem. Certain fish can only survive in certain types of water whether its fast or slow moving. Peaking power operations can cause dramatic changes in reservoir water levels. However hydroelectric facilities can still have a major impact on aquatic ecosystems.
For example though there are a variety of methods to minimize the impact including fish ladders and in-take screens fish and other organisms can be injured and killed by turbine blades. Such flooding can kill or displace many different organisms including plants wildlife and humans. However dams reservoirs and the operation of hydroelectric generators can affect the environment.
Slow-moving or still reservoirs can heat up resulting in abnormal temperature fluctuations which can affect sensitive species. This can lead to algal blooms and decreased oxygen levels. Hydropower developments can have negative effects on freshwater species in a number of ways blocking migration routes changing river flows and habitat and dropping loads of fine sediment in areas where the river flow is slowed potentially causing eutrophication and covering fish breeding sites.
Once in the atmosphere hydrogen sulfide changes into sulfur dioxide SO2. Development of dams and reservoirs severely affect human life and aquatic species. For the final stage we assessed damage costs based on effects of.
This contributes to the formation of small acidic particulates that can be absorbed by the bloodstream and cause heart and lung disease 6. One way we are negatively affected is that hydroelectric dams can collect large amounts of mercury behind the dam contaminating the fish and us. A destruction of forest and ecosystem around its.
Insects lay their eggs on submerged aquatic vegetation near the shoreline but drastic fluctuations in water levels can expose the eggs andor larvae causing them to dry out and die. Hydropower dams can disrupt and even destroy entire ecosystems by blocking the annual inflow of sediments and nutrients as well as migratory fish populations. Damage cost describes the value that can be lost when an ecosystem is allowed to degrade leading to a reduction in ecosystem services.
Sulfur dioxide also causes acid rain which damages crops forests and soils and acidifies lakes and streams. Hydropeaking creates a fluctuating daily pattern of water flows that can severely impair productive shoreline habitats through repeated wetting and drying. Alabama Powers 14 hydroelectric plants provide more than 150000 acres of water and 4000 miles of shoreline for the publics enjoyment and the company has taken a lead role in maintaining the many additional benefits that hydropower can provide and ensuring that there is a healthy ecosystem.
Though hydropower is renewable energy construction and operation of dams harms ecosystem functions and services. The exact quantification of the loss of ecosystem services provision associated with degradation is not well studied Braat and de Groot 2012. Dams impact water quality.
Dammed rivers create a reservoir upstream from the dam which spills out into the surrounding environments and floods ecosystems and habitats that once existed there. Hydropower generators do not directly emit air pollutants. This can leave stretches below dams completely de-watered.
A dam that creates a reservoir or a dam that diverts water to a run-of-river hydropower plant may obstruct fish migration. The term clean is also used because production of electricity with hydropower does not pollute the air contribute to acid rain or ozone depletion because of carbon dioxide emissions or like nuclear power leave highly toxic waste that is difficult to dispose of. 2 Hydropower though is called clean energy but it causes environmental damages in following ways.
The first way nuclear power can damage an ecosysten is that itmay kill many animals and the second one is that it will burn manytrees.
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