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Apr 6, 2023 · Dams are important because they are used to store water, generate electricity, regulate the flow of rivers, provide flood control, irrigation, and water supply, and support recreation. Dams...
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- Why Build Artifical Lakes?
- How Are Man-Made Lakes created?
- Environmental Impacts
- Types of Man-Made Lakes Based on Their Uses
There are several reasons why people build man-made lakes. One of the main reasons is to provide water for various uses, such as irrigation, drinking, and industrial purposes. In addition, man-made lakes can be used to generate hydroelectric power, a renewable and clean energy source. Man-made lakes also provide recreational opportunities for commu...
Man-made lakes, also known as reservoirs, are created by constructing dams across rivers or streams. The dams create a barrier that prevents the natural flow of water, causing it to accumulate and form a lake. The lake’s size and depth depend on the dam’s size and height and the volume of water that streams into the reservoir. There are several rea...
While man-made lakes provide many benefits, they can also have negative environmental impacts. One of the biggest impacts is the loss of natural habitat for plants and animals that lived in the area before the lake was created. In addition, man-made lakes can change the flow of rivers and streams, affecting the ecology of the surrounding areas. The...
1. Water supply reservoirs
Water supply reservoirs are man-made lakes or reservoirs that are constructed primarily to provide a reliable source of water for human consumption, agricultural irrigation, and industrial use. These reservoirs are typically fed by streams or rivers and are designed to store water during wet periods and release it during dry periods. Water supply reservoirs may be built to serve a single community or to supply water to multiple municipalities or regions. The water stored in these reservoirs m...
2. Flood control reservoirs
Flood control reservoirs are an essential part of many river systems and help manage the effects of climate change by providing a buffer to absorb extreme weather events. Flood control reservoirs are designed to reduce the risk of flooding in downstream areas. They are typically constructed across rivers, with an orifice plate controlling water flow downstream. During very high rainfall, these reservoirs collect water and release it slowly during the following weeks or months. This managed re...
3. Hydropower reservoirs
Hydropower reservoirs are artificial lakes created by building a dam across a valley and storing the water. These reservoirs generate electricity, irrigate the land, and supply a water source for domestic and industrial uses. They can also be used to control unexpected floods. The water in reservoirs is fed by precipitation, rainwater runoff, or a constant river flow. Sediment from rivers or surface runoff can also reduce the storage volume of the reservoir. However, water can be lost due to...
- Diversion Dam. Like the name says, a diversion dam is used to divert water. They provide pressure to push water into ditches, canals, or other areas used for conveyance.
- Buttress Dam. Buttress dams can take many forms, but they all consist of a sloping deck supported by intervals of buttresses. There are three main buttress dams, including: multiple arch type, massive head type, and deck type.
- Embankment Dam. An embankment dam is a large, artificial dam that is constructed with natural excavated materials or industrial waste materials, such as compacted plastics, and various compositions of soil, sand, rock, and clay.
- Cofferdam. A cofferdam is a temporary, portable dam used for a variety of projects including bridge repair, shoreline restoration, pipeline installation, and many other construction projects.
#biology #reading #lissetteoIn this playlist, I'll be reading excerpts from the book "Inspired Evidence - Only One Reality" by Julie Von Vett & Bruce Malone....
- Gravity Dams: A gravity dam is a massive sized dam fabricated from concrete or stone masonry. They are designed to hold back large volumes of water. By using concrete, the weight of the dam is actually able to resist the horizontal thrust of water pushing against it.
- Earth Dams: An earth dam is made of earth (or soil) built up by compacting successive layers of earth, using the most impervious materials to form a core and placing more permeable substances on the upstream and downstream sides.
- Rockfill Dams: A rockfill dam is built of rock fragments and boulders of large size. An impervious membrane is placed on the rockfill on the upstream side to reduce the seepage through the dam.
- Arch Dams: An arch dam is curved in plan, with its convexity towards the upstream side. An arch dam transfers the water pressure and other forces mainly to the abutments by arch action.
This video focuses on the beaver's ability to transform its environment to suit itself. The beaver does so with an innate ability to construct dams—a feat that no creature apart from humans is able to achieve.
People also ask
What is a dam & how does it work?
How does a gravity dam work?
How a dam is built in a river?
How do students learn about dams?
Students learn about the importance of dams by watching a video that presents historical and current information on dams, as well as descriptions of global water resources and the hydrologic cycle. Students also learn about different types of dams, all designed to resist the forces on dams.
