Mangroves for the Future
The
National Environment Policy, 2006 recognizes that mangroves are an important
coastal environmental resource. The Ministry of Environment & Forests is at
the forefront in regard to the conservation and management of mangroves, which
provide habitats for marine species; protection from extreme weather events and
a resource base for sustainable tourism. The Government seeks to sustain
mangroves in the country by both regulatory and promotional measures.
What are Mangroves?
Mangroves are plants that survive high salinity, tidal regimes,
strong wind velocity, high temperature and muddy anaerobic soil – a combination
of conditions hostile for other plants. The mangrove ecosystems constitute a
symbiotic link or bridge between terrestrial and marine ecosystems. They are
found in the inter-tidal zones of sheltered shore, estuaries, creeks,
backwaters, lagoons, marshes and mud-flats. Mangrove vegetation has been
reported in all the coastal States/UTs. India is home to some of the best mangroves
in the world. West Bengal has the maximum of mangrove cover in the country
followed by Gujarat and Andaman & Nicobar Islands.
However, not all coastal areas are suitable for mangrove plantation as mangrove
requires an appropriate mix of saline and freshwater, and soft substrate like
mudflats to be able to grow and perpetuate. The Government has identified 38
mangrove areas on a country wide basis for intensive conservation and
management. In Tamil Nadu, Pichavaram, Muthupet, Ramnad, Pulicat and Kazhuveli
mangrove areas have been identified.
Mangroves Protect the
Coast
Mangrove ecosystems are rich in
biodiversity and harbour a number of floral and faunal species (both
terrestrial and aquatic) many of which, e.g. the tiger, gangetic dolphin, estuarine
crocodile etc. are endangered. They also act as nurseries for fin fish, shell
fish, crustaceans and mollusks. Mangrove forests are regarded as the most
productive ecosystems in the world on account of the large quantities of
organic and inorganic nutrients released in the coastal waters by these
ecosystems.
The mangroves besides providing a number
of ecological services also play a major role in protecting coastal areas from
erosion, tidal storms and surges (tsunamis). They help in land accretion by
trapping the fine debris particles. They are also an important source of honey,
tannins, wax, besides fish. Presently, these are one of the most threatened
ecosystems on account of both anthropogenic factors (reclamation of land,
discharge of waste etc) and natural factors like global warming.
Intensive Conservation in
Eight States
The current assessment shows that the
mangrove cover in the country is 4,662.56 sq km. The mangrove plantation with
an average, annual target of 3,000 hectares is undertaken on a country wide
basis. The areas supported are among the 38 areas as already identified by MoEF
for intensive conservation. During 2010-11, financial assistance to the tune of
Rs. 7.10 crores had been distributed among West Bengal, Orissa, Andhra Pradesh,
Tamil Nadu, Kerala, Karnataka, Goa and Gujarat for
conservation and management of mangroves.
The project entitled "Mangroves
for Future (MFF): a strategy for promoting investment in Coastal Ecosystem
Conservation" is being coordinated by the International Union for
Conservation of Nature (IUCN) covering, initially, eight countries, including India .
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