Mangroves In Global Context
2.1 Mangroves in global context: an overview
Mangrove is a type of forest growing along tidal mudflats and along sallow w ater coastal areas extending into rivers and streams and their tributaries where he water is generally blackish.
Mangroves can be found along coastlines in the tropics and subtropics (FAO, 2010). Mangroves act as natural safeguard for the lives and properties of coastal communities from natural hazards like cyclones and floods and also coastal soil erosion (Barbier, 2007). More than that Mangroves support local fisherise resource and inhibit marine productivity which support wider commercial fisheries (Walters et al., 2008). Additionally, mangroves host a large stock of wild flora and fauna which maintain coastal biodiversity
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Humans are an integral part of ecosystems. In the ecological literature, the term ‘ecosystem function’ has been subject to various, and sometimes contradictory, interpretations. Sometimes the concept is used to describe the internal functioning of the ecosystem (e.g. maintenance of energy fluxes, nutrient (re)cycling, food-web interactions), and sometimes it relates to the benefits derived by humans from the properties and processes of ecosystems (e.g. food production and waste treatment). Ecosystem services are the benefits people obtain from different functions of the ecosystem. These include provisioning services such as food and water; regulating services such as flood and disease control; cultural services such as spiritual, recreational, and cultural benefits; and supporting services, such as nutrient cycling, that maintain the conditions for life on …show more content…
Information functions: Because most of human evolution took place within the context of undomesticated habitat, natural ecosystems provide an essential ‘reference function’ and contribute to the maintenance of human health by providing opportunities for reflection, spiritual enrichment, cognitive development, recreation and aesthetic experience.
Table 2-1: Ecosystem functions (classification adopted from De Groot, 1992)
Regulation Function Information Function
Gas regulation : clean and breathable air
Climate regulation : green house gas regulation
Disturbance prevention: cyclone, storm surge
Water regulation : trapping of sediments
Water supply : filtering and storage of water
Soil retention : stabilization, erosion control
Soil formation : new soil formation in coastal area
Nutrient regulation : productive ecosystem
Pollination : supports pollinator species insects, birds
Biological control : wildlife population control by food chain Aesthetic : natural beauty, scenic view
Tourism : hunting animals Ecotourism,
Cultural : source of photography, painting, film, folklore
Historic: world heritage site.
Education :scope for nature study,
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