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Why it is that one of the serious problem of deforestation is the silting of rivers with soil and rocks carried by floods?
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Why is silting a problem?
Silting is a great problem because it makes the river bed shallower so river channels would hold less water. And the floods are frequent in these areas. ANSWERED BY SANIA TARIQ
How is silting of rivers and dams an effect of deforestation?
Removing the forest vegetation increases soil erosion. That soil is washed out into waterways when it rains, increasing the particulate matter in waterways.
What is silting of lake?
Silting of a lake is when very fine particles of sand or clay fill the bed of the lake. The bed of the lake rises, which can cause flooding.
What type of sedimentary rock is formed from deposits carried away from their source by water wind or ice?
Silting. Erosion.
Why is reforestation effort to save the environment?
Reforestation benefits the environment by reversing the effects of deforestation. Deforestation is the destruction of forests. In brief, deforestation: * reduces the amount of carbon dioxide removed from the atmosphereby photosynthesis * increases the amount of carbon dioxide released into the environment from burning and decay * reduces the amount of moisture released into the atmosphere by transpiration * increases the loss of soil by erosion * increases the silting up of rivers etc from soil erosion * extinction of species which inhabit forests (reduced biodiversity) * contributes to desertification For a very clear summary of deforestation and its effects see: http://www.botany.uwc.ac.za/Envfacts/facts/deforestation.htm
What is silting of a port?
Silting refers to the build-up of silt on the bottom of the harbor or port. This build-up or silting will reduce the effective depth of the harbor or port, and dredging will have to be conducted to remove it to restore depth to the port. Silting results from the emptying of a river or waterway into a bay where the port is located, or it could result from the action of tides and/or currents in the ocean. Any of these represent the action of moving water, and when water moves, it can carry with in any number of things, including fine sediment that settles out as silt.
What rhymes with wilted?
ANSWERS............JILTING..SILTING.... TILTING ........QUILTING...........OK.
What is headrace tunnel?
A tunnel between De-silting basin or Fore-bay to Surge Shaft is called Head Race tunnel which may have pressure flow or gravity flow.
What is desilting pipe?
Silt in pipes is caused by solids suspended in liquids, that are flushed through the drainage system, settling in the pipe-work. This can be caused if there is a lot of solid matter flushed through the pipe system or if the flow is too slow or has too many turns causing the flow to been restricted (which in turn allows the solid particles held within it time to fall to the low point in the pipe). De-silting is carried out through either high pressure jetting or exposing the affected pipe-work and physically cleaning out. Silting can occur in other pipe systems, as well as drains, but depends on what the plumbing system is carrying. Hard water areas (high level on degrees Clarke) may need acid descale etc.
Human Impact on Purnululu national park?
The human impact on Purnululu National Park has caused over-grazing and the resulting soil erosion. Government action was required to clear up the resulting silting.
How does deforestation affect air?
Forests sequester carbon. Deforestation means the timber may be used and eventually converted to carbon dioxide, or left to rot, which also means that it is converted to carbon dioxide, a greenhouse gas responsible for global warming. Either way, deforestation contributes to the global warming process. As the average global temperature rises, we begin to see changes in the world's climate. Sea levels rise, beach erosion becomes more serious, coastal areas are gradually inundated, drought and flood patterns become more severe, and more intense storms are experienced. Deforestation contributes less to these processes than do the use of coal and oil, or the manufacture of cement, but that contribution is still significant.
How does afforestation reduce silting?
Afforestation, planting more trees, stabilises the soil, preventing erosion by water and even landslides. This means that rainfall is more likely to seep into the ground, rather than washing the soil into rivers and streams where it becomes silt.
