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Salt Marsh and Mangroves (for Coastal Defence) - Essay Example
Mangroves in coastal areas present a good defence against tidal waves that cause the erosion of sand from beaches. They are considered as critical tools which are quite cheap too compared to other coastal defensive measures such as masonry barriers…
Mangroves provide a good site for fisheries as the nursery grounds for young fish (fingerlings) and for laying their eggs. Mangrove forest cover is a crucial part of the bio-diversity of a locality such as giving a good habitat for a host of marine life. This is proven by the presence of three types of fauna found in mangroves which are resident species (living primarily among the mangroves), the seasonal migrants and the occasional species which visit the mangrove stands once in a while. The scientific study of mangroves and salt marsh as part of the conservation efforts is now a recognized field in engineering and of studies in ecology and oceanography. Mangrove forests are natural ecosystems in many coastal areas around the world and provide a natural coastal defence system which is often overlooked by country planners. Mangroves are a good deterrent against erosion caused by higher sea levels due to global warming and a changed wind pattern from various directions and velocities. Unfortunately, mangroves are under threat today from human activities and expansion.
This paper will discuss how mangroves and salt marsh are crucial components in the coastal defence of areas threatened with erosion from tides and strong winds. It will then also tackle other issues concerning mangrove forests such as clearing them for firewood, charcoal and the other human needs such as for certain coastal developments like resorts. ...