height‚ energy and load changes due to erosion processes such as abrasion‚ cavitation‚ attrition‚ hydraulic action and corrosion as well as how the rivers deposition rates fluxuate. The source of the mouth is the part of the drainage basin where the river starts. It is usually high above base level‚ such as a mountain‚ and has a very steep gradient. As a river flows down steep slopes the water performs head ward and vertical erosion. This form of erosion cuts down towards the river bed and carves
Premium Erosion Sediment River
Coastal areas can be protected from the effects of natural processes‚ for example the effects of erosion‚ deposition‚ transportation‚ weathering and mass movement. The most problematic of these is erosion. There are three types of erosion: hydraulic action‚ abrasion and attrition which all contribute together to erode cliffs‚ causing the coastline to be vulnerable and weaker. The cause of erosion can then lead to mass movement for example rock fall and slumping which can affect the coastline greatly
Premium Erosion Coast
Abstract Nigeria has a total land area of 983‚213 km2 occupied by about 140 Million people: The interaction of these millions of people with their environment has left indelible mark on the landscape. Deforestation‚ desertification‚ flooding‚ erosion and all kinds of pollution as well as climate change are some of the resultant effects of man’s interaction with his environment. These changes occur as the people attempt to acquire their seemingly endless desire for food‚ shelter‚ recreation and
Premium Erosion Pollution Environmentalism
particles (sand‚ silt and clay). DESCRIPTION OF DESPERSIVE CLAY SOILS Initially‚ clay soils were thought to be highly resistant to erosion from the flow water‚ lately it has been found that highly erodible clay soils exist in nature. Some natural clay soils disperse in the presence of relatively pure water and are highly susceptible to erosion. The tendency for dispersive erosion in a given soil depends on variables such as mineralogy and chemistry of the clay‚ as well as dissolved salts in the water in
Premium Dam Erosion Soil
degradation occurs (e.g. erosion) and off site where sediments are deposited. However‚ the on-site impacts of land degradation on productivity are easily masked due to use of additional inputs and adoption of improved technology and have led some to question the negative effects of desertification. The relative magnitude of economic losses due to productivity decline versus environmental deterioration also has created a debate. Some economists argue that the on-site impact of soil erosion and other degradative
Premium Soil Erosion
future generations to meet their needs. Soil erosion and desertification Soil erosion * The washing or blowing away of top soil. * There are three types: * Sheet erosion – occurs in parts with moderate rainfall * Gully erosion – occurs where there’s intense rainfall and little vegetation cover. Force of water cuts gullies in slopes :O! * Wind erosion – occurs in dry parts of world * What makes soil erosion worse? * Deforestation and removing
Premium Deforestation Agriculture Soil
majority of people have come to know this term; deforestation is the clear cutting or total removal of trees in a forest. With the destruction of these luscious and plentiful forests come many environmental issues ranging from global warming to soil erosion to loss of habitat. By the end of this report you should have a better understanding of the impact of deforestation and what has to be done in Canada ’s Boreal Shield (ecozone) and of that on the Pacific Coast. The clear cutting of forests has existed
Premium Soil Forestry Erosion
little water in the river giving it less energy to change the depth of the channel by erosion. As you go downstream the volume/amount of water (also known as discharge) also increases because more and more tributaries join the main river. The increase of water makes the energy levels rise when theres moe energy there is more erosion (in the form of abrasion‚ attrition and hydraulic action). these types of erosion erode away at the river bed creating a deeper channel. Whilst the depth varies downstream
Premium Stream River Erosion
Two methods used : beach fabric anaylysis and measuring Cliff height. Beach fabric analysis and profile: Equipment used: Quadrat‚ Written recording sheets‚ Measuring tape ‚ Tennis balls‚ Stopwatch‚ Ranging poles‚ Clinometer ( Homemade )‚ Compass‚ Anomemeter. Beach profile : To show that this is a sandy beach and was made from erosional process. The Quadrat: · I threw the quadrat along the foreshore midshore and backshore so I could begin my investigation of the beach.I then procceded to
Premium Wind Measurement Coast
can destroy an entire ecosystem causing environmental threats‚ such as green house gas emissions‚ a rise in soil salinity‚ the destruction of natural habitats for animals‚ the decrease and even extinction in indigenous flora and fauna‚ as well as erosion. Extensive land clearing is a problem in Australia‚ New Zealand and Tasmania. History For the most part‚ land clearing has been utilized to make way for agricultural and urban development. In the past‚ governments and people thought that if
Premium Agriculture Soil Greenhouse gas