สำนักราชบัณฑิตยสภา

«“√ “√ √“™∫— ≥±‘ µ¬ ∂“π ªï ∑’Ë Û ©∫— ∫∑’Ë Ú ‡¡.¬.-¡‘ .¬. ÚıÙ¯ 315 π‘ ∑ Õ— °…√·°â «, π„® À–«“ππ∑å Abstract Mangroves... The Natural Coastal Fort for Tsunami Protection Sanit Aksornkoae Associate Fellow of the Academy of Science, The Royal Institute, Thailand Sonjai Havanond Mangroves are among the most productive terrestrial ecosystems. They thrive in sheltered bays where rivers have deposited nutrient-rich sediment, forming part of many different habitats that make up the estuarine ecosystems. Mangroves are important feeding grounds for many species of coastal animals and rich in food and non-food products for man. Mangrove trees can withstand severe environmental stress including alternating mixes of fresh and salty water, prolonged submersion or exposure with every tide, and mud that has no oxygen and a high sulfur content. They trap silt and build up thick shifting sediments where they grow, stabilizing land elevation by sediment accretion which helps protect coastlines from erosion, storm damage, and wave action. As widely reported in the Asia region and elsewhere, mangroves play a pivotal role in moderating monsoon tidal floods, Tsunami and in coastal protection. Key words : mangroves, coastal area, estuarine, ecosystem