By Salif Diop, Jean-Paul Barusseau, Cyr Descamps
ISBN-10: 3319063871
ISBN-13: 9783319063874
ISBN-10: 331906388X
ISBN-13: 9783319063881
Although the focus of this booklet is at the estuaries, its scope is going well past this actual coastal function. certainly, the estuary can simply be regarded as a part of the lifestyles cycle of the complete river and the marine quarter it feeds into: a space relatively topic to human and common pressures.
The major estuaries and deltas of West and valuable Africa zone supply a number of items and prone to its coastal inhabitants. an important of them are regarding severe fish habitat, wooden and charcoal from mangroves, in addition to house for agriculture, aquaculture, city improvement, tourism and transport.
Particular emphasis has been made during this publication on mangroves that play an important function when it comes to flood control, groundwater replenishment, sea coast stabilization and safeguard opposed to storms. additionally they maintain sediments and meals, purify water, and supply serious carbon garage. Such hydrological and ecological features clarify the focal point on serving mangrove ecosystems and the within reach groups, which draw major source of revenue from fishing, rice creation, tourism, salt extraction and different actions equivalent to harvesting honey and medicinal crops, for that reason the necessity for keeping mangrove ecosystems to make sure sustainability of the estuaries and deltas of West and vital Africa region.
The ebook has a foreword by means of Mr. Achim Steiner, United countries Under-Secretary common and govt Director of UNEP who isstating that credible and updated details is vital for the general public at huge yet extra in particular for scientists, researchers, managers, decision-makers all operating jointly with a view to defend, shield and sustainably deal with estuaries, deltas and lagoons, and the coastal and ocean waters of Western and significant Africa.
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Additional info for The Land/Ocean Interactions in the Coastal Zone of West and Central Africa
Example text
Granites and metamorphic rocks presents on all of Liberia, Western Côte d’Ivoire and the central part of the coast of Ghana. The remainder of the coast line is composed of: Unstable and/or very dynamic coasts • Sand banks, estuaries, river mouths, spits and islets by nature also very unstable and dynamic (12 %). • Mangroves, continuously evolving (48 %). • Sandy formations of lidos, thin sandy rim between a lagoon and the sea shore, also unstable and highly changing (7 %). Less dynamic coasts, but still subject to natural episodes of erosion and accretion outside of human intervention.
Regulation services: climatic (carbon sequestration), sediment trapping and coastal protection against marine erosion and extreme marine weather events, treatment and recycling terrigenous and effluent input from human activities, waste water purification, protection against floods from continental waters, stabilisation of mobile dunes, etc. • Cultural services: landscape appeal and environmental quality (formation of beaches, islands and coastal landscapes), leisure activities (urban beaches for example), research and education, cultural and religious heritage (sacred sites, customs, traditional ways of life, artistic expression), etc.
The estuaries of West Africa are home to the major expanses of mangroves, which are reputed for their biological productiveness and their role West African Coastal Area: Challenges and Outlook 17 Fig. 5 Proportion of coastline according to the physiography of mangrove stands (by country) (SDLAO, UEMOA–IUCN 2011) of being nurseries and feeding areas for large numbers of marine species and water birds. Beyond the mangrove area associated with the major estuaries and the archipelago estuary of the Bijagos, the string of small estuaries from Sierra Leone to Côte d’Ivoire also represents a network of extremely rich ecosystems, sheltering a fluvio-marine and brackish water fauna the diversity of which remains relatively unexplored and unknown.
The Land/Ocean Interactions in the Coastal Zone of West and Central Africa by Salif Diop, Jean-Paul Barusseau, Cyr Descamps
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