Mangrove forests are considered hardy plants given their ability to survive in high saline waters and low-oxygen soils. If you value this objective and impact-driven journalism, please consider becoming a sustaining member. Only 6.9 percent of mangrove forests are protected by law. Wave energy may be reduced by 75 per cent in the wave's passage through 200 meters of mangrove forests, a very substantial amount once the mangrove has been removed. The available global mangrove databases, compiled using disparate geospatial data sources and national statistics, need to be improved. Indonesia, a country of 17,000 tropical islands, has by far the largest mangrove forest cover, followed by Brazil, Malaysia, Papua New Guinea and Australia. That’s the good news. Mangroves are halophytes, found in tropical evergreen forests. Mangroves are commonly found along sheltered coastlines in the tropics and sub-tropics where they fulfil important socio-economic and environmental functions. B. D. 475,000. Sundarbans is the largest mangrove forest in the world. A study commissioned by the U.N. Environmental Program (UNEP) reports that one fifth (around 35,500 square kilometers) of the world's mangroves -- forests straddling both land and sea -- have … The report, to be published next January, will provide an overview on mangrove vegetation and species, uses and threats in addition to information on mangrove areas and area changes over time. Mangrove forests and “swamps” are important as spawning grounds and nurseries for marine and freshwater species. In addition, a variety of fish and other sea creatures thrive among the submerged mangrove roots, providing a critical food source for Kolkata's four million inhabitants. Twenty percent of the world’s mangroves lost over the last 25 years: Rate of deforestation slowing, but still a cause for alarm 7. The term \"rainforest\" has a wide classification. We depend on support from users like you. These forests provide at least US$1.6 billion each year in ecosystem services. Along the Atlantic coast they are found from Florida all the way down to Argentina. 6. Mangroves also provide ideal locations for aquaculture, which is currently “the fastest growing food-producing sector in the world”, though often mangrove forests are destroyed for this purpose. There are movements in place to encourage more sustainable forms of aquaculture that complement the local environment instead of destroying it, but this is still not the norm. “Other studies suggest that the number of Sundarbans mangroves has remained stable or decreased very slightly over the last few decades, and this is also what we found,” said Awty-Carroll. It is prepared by FAO in collaboration with mangrove specialists throughout the world and is co-funded by the International Tropical Timber Organization (ITTO). Antarctic ice melt related to tropical weather shifts: Study, Crimefighting NGO tracks Brazil wildlife trade on WhatsApp and Facebook, The Amazon’s Yanomami utterly abandoned by Brazilian authorities: Report, Conserve freshwater or land biodiversity? C. 15%. The biggest concentration (21 percent) of the world's mangroves is in Indonesia, with Brazil home to around nine percent and Australia, seven percent. Download Mangroves … Since 1980, about one-fifth of the world’s mangroves have disappeared. “More countries are now recognizing the importance of mangroves and are making an effort to conserve and better manage them,” said Mette Løyche Wilkie, a mangrove expert at FAO. With this in mind, there is a growing need to understand the factors- both biophysical and societal- that contribute to sustainable mangrove management. The total area is nearly 10,000 km2. Where recent information was unavailable (about 3.5 percent of the total mangrove area), the extrapolation to Year 2000 was based on the overall forest change rate as reported in the Global Forest Resources Assessment 2000 (FAO 2001) applied to the latest reliable estimate. Since 1980, about one-fifth of the world’s mangroves have disappeared. At this rate all unprotected mangroves could disappear in the next century. The report finds 66 out of 82 (80%) provinces have mangroves; and identified the top provinces with the most mangrove areas as a percentage of total national area: Palawan (22.2%), Sulu (8%), and Zamboanga del Norte and Sur (9.86%); Surigao del Norte and Sur (6.8%), Eastern and Western Samar … Mangroves constitute only 0.5 percent of forest area worldwide, but millions of people depend on them for food, income and protection of coastlines against erosion. More than a third of the world’s mangroves are believed to have disappeared between 1980 and 2000, mostly due to the rise of industrial shrimp farming and coastal development. The following is a news release from FAO detailing its mangrove study. Still, during the same time frame the annual rate of mangrove deforestation dropped from around 185 000 ha per year in the 1980s to 105 000 ha/yr during the 2000-2005 period, it added. Introduction. Mangroves today cover around 15 million hectares (ha) worldwide, down from 18.8 million ha in 1980, according to the study. Mangroves in India are 3 percent of its total geographical area. Our study confirms earlier findings that the biogeographic distribution of mangroves is generally confined to the tropical and subtropical regions and the largest percentage of mangroves is found between 5° N and 5° S latitude. Introduction. Most mangroves grow on public land, only about 1 percent of which receives any sort of protection. Approximately 75 percent of the world’s mangrove forests are found in just 15 countries. The new survey confirms that most mangroves are confined to the tropics and sub tropics and the largest percentage of mangroves is found between 5º N and 5º S. Our biweekly podcast delivering news & inspiration from nature’s frontline. This means that mangrove loss can have a large effect; up to 10 percent of global carbon emissions from deforestation has been attributed to mangroves. However, over the past half-century, more than 70 percent of mangrove forests in China have vanished because of human activity. Imagery: Landsat 8. These areas usually get rain year-round, typically more than 70 inches (1,800 millimeters) a year, according to the Encyclopedia Britannica. B. 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