The Effects of Human Activity on Coastal Landforms

Human activities pose a threat to Seagrass beds because of boating, stepping on the seagrass, which damage the root system, dredging, pollution and construction practices.

Coastal erosion is the wearing away of land and the removal of beach or dune sediments by

There are 2 types of beaches. One is erosion dominant and the other is deposition

* The sand dunes on the beaches. This area is affected by wind erosion as well as the tides if adequate vegetative cover is not present. The main type of erosion, from the sea, takes the sand from the sand dunes as well as the rest of the beach in a rip. The sand is then pulled out to sea where it forms a sand bar. On calmer days, the sand is brought back to the beach.

period of time have increased the size of the beach. Enviromental organisations have tried there best to limit the amount of man made deveoplment on coastal lads and many schools

Wave cut platforms are another feature of an erosional coastline. Along coastlines with cliff edges that sit about the shore these features are apparent they look like gently sloping areas of landnear the shore just above sea level. (Chambers, 2007) These benches and marine terraces are the product of wave action eroding the rock at the base of the cliff until the cliff cannot support itself on its new foundation and crumbles into the sea. Over time the collapsed land will have much of the smaller debris eroded away and much of the remaining rock or earth will be somewhat smoothed over to create a gentle slope to the water. (Chambers, 2007)

There are many different types of coasts that exist throughout the United States. The south shore of Long Island has a unique types of coast known as a barrier beach. Barrier beaches are long narrow land forms that are composed of sand and other lose sediments. These sediments are brought together by the actions of waves, currents and storm surges. Barrier beaches are subject to constant changes by the same forces. Sand is constantly eroded in one area an deposited in another. Barrier coasts are important for a number of reasons; they protect the mainland of Long Island from the open ocean and flooding during storms, for recreational use and the unique ecosystems which exist on barrier

This will start to happen all over the world. This also will affect animals and buildings on the shore. Another thing that can cause erosion are animals, gravity, and floods. Animals help destroy the dirt into smaller pieces making it easier for the wind to push it away. The gravity can pull rocks and dirt down a cliff or mountain. Floods come through the city or town and act like a huge tidal wave and push everything away.

Shoreline erosion is a natural process that takes place on lakes, streams, waterways and along the coast. It is the progressive, albeit

The erosion of shorelines is a natural process that can have beneficial or adverse impacts on the creation and maintenance of habitats. Sands and gravels eroded from the shores of coastal bays maintain the beach as a natural barrier between the open water and coastal wetlands. Beaches move back and forth onshore, offshore and along shore with changing wave conditions. The finer-grained silts and clays derived from the erosion of shorelines are sorted and carried as far as the waters of wetlands or tidal flats, where benefits are derived from addition of the new material. However, excessively high sediment loads can smother submerged aquatic vegetation beds, cover shellfish beds and tidal flats, fill in riffle

This present study is focusing on the understanding of morphological dynamics on coastal region, long-term sediment transport, turbidity distribution pattern, impact of sediment transported pollutants etc. Beside this Harmful Algal Bloom (HAB) is caused due to increasing surface run off in form of industrial wastage and major brick factory beside this coastal region.

As we engineer the shoreline, this is a phase that may compare to the changing or altering the nature of the shoreline in order to keep it stabilized. The stabilization methods of shoreline range from planting dune grass, to large seawalls using bulldozers or cranes. These methods are short term. Erosion of beaches caused by human may be greater than nature causing.

The world’s oceans are very negatively impacted by human activities. Fish are less abundant because of overfishing and destructive fishing practices. The dumping of human waste (trash, untreated sewage, oil, chemicals, etc.) pollutes shorelines and ocean waters. Coastal developments on and around coastlines disturb, alter, and destroy marine habitats. Human reliance on oil and non-renewable energy sources (ex. burning of fossil fuels) contributes largely to global climate change, with huge implications for the oceans and marine species (sea level rise, ocean acidification, coral bleaching, etc.). Fortunately, however, negative impacts have given rise to restoration, conservation, and preservation efforts, (restoring fish populations, protecting

Also, the longshore is when the sand is being transfer along the coastline which creates some extensions of the beach. But the only negative is it doesn’t follow the coastline. To fix the longshore, the pick up the sand in the sea and dump it on the coastline near the beach. In addition, dams were created

Coastal developments and construction activities put the marine water quality under pressure through the waste production and deposition into the marine. Additionally, dredging could result in the presence of excess sediment in the water column that might activate toxic algal cysts and release sediment pollutants back to the water column. The tightening of the water pathways due to construction also influences the water flow and circulation resulting