Malabika BISWAS ROY, Department of Geography Women's College, Calcutta, India
Sudipa HALDER, School of Water Resources Engineering, Jadavpur University, India
Pankaj KUMAR ROY, School of Water Resources Engineering, Jadavpur University, India
In this era of global warming with the increased concerns of environmental problems and importance of mangroves, there have a numbers of attempts to conserve and rejuvenate the mangrove forest through ecological restoration of the degraded zones and planting more mangroves in the non-mangrove stretches such as salt marches and mud flats. But restoration works and conservation techniques related to it may lead to the loss of the ecological services as provided by the ecosystem. Such policies are also partly implemented based on global policy approaches such as the Convention on Biological Diversity. Mangrove plantation are usually made on sparse forest patches where their ecological diversity and survival rates are low. These planted mangrove have a low capacity to provide ecosystem services than natural one. But planted mangroves can to lead to a significant increase in fish production. Over time mangroves can actively build up soils, increasing the thickness of the mangrove soil, which may be critical as sea level rise accelerates. Mangroves, and their coastal risk reduction function, can recover in most places where appropriate ecological and social conditions are present or restored. This study is aimed at understanding other ecosystem services by planted mangroves, such as bank erosion protection and sediment accretion and anthropogenic services.
Mots clés : Convention on Biological Diversity|Mangrove plantation|sediment accretion|ecosystem services|ecological restoration