Present status on conservation and management of mangrove ecosystems in the Islands of Gulf of Mannar region Tamilnadu

摘要

The mangroves grow luxuriantly in alluvial soil substrates, which are fine textured, looseudmud or silt, rich in humus and sulphides and they develop in low lying and broad coastal plainsudwhere the topographic gradients are very small and tidal amplitude is large. Their distribution isudlimited by temperature and they prefer moist atmosphere and freshwater inflow, which brings inudabundance nutrients and silts from terrestrial source. The mangroves occur in sheltered shores asudwaves and currents damage the mangrove seedlings. Repeatedly flooded but well drained soilsudsupport good growth of mangroves, but impeded drainage is detrimental