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The Sundarbans

The Sundarbans

The Sundarbans mangrove forest, one of the largest such forests in the world (140,000 ha), lies on the delta of the Ganges, Brahmaputra and Meghna rivers on the Bay of Bengal. It is adjacent to the border of India’s Sundarbans World Heritage site inscribed in 1987. The site is intersected by a complex network of tidal waterways, mudflats and small islands of salt-tolerant mangrove forests, and presents an excellent example of ongoing ecological processes. The area is known for its wide range of fauna, including 260 bird species, the Bengal tiger and other threatened species such as the estuarine crocodile and the Indian python.

Description is available under license CC-BY-SA IGO 3.0

Les Sundarbans

La forêt de mangroves des Sundarbans, l’une des plus grandes forêts mondiales de ce type (140 000 ha), couvre le delta du Gange, du Brahmapoutre et de la Meghna, dans la baie du Bengale. Elle est contiguë au site indien des Sundarbans, classé patrimoine mondial depuis 1987. L’ensemble du site est entrecoupé d’un réseau complexe de voies d’eau sous l’influence des marées, de vasières et d’îlots de forêts de mangroves halophiles, offrant un excellent exemple de processus géologiques en cours. Le site est également connu pour la richesse de sa faune qui comprend 260 espèces d’oiseaux, le tigre du Bengale et d’autres espèces menacées comme le crocodile marin et le python indien.

Description is available under license CC-BY-SA IGO 3.0

سونداربانس

تغطّي غابة الأيك الكثيف الاستوائية (مانغروف) في سونداربان، وهي إحدى أكبر الغابات العالمية من هذا النوع (140000 هكتار)، دلتا الغانج والبراهمابوتر والميغنا في خليج البنغال. وهي قريبة من الموقع الهندي للسونداربان المصنف تراثا عالميا منذ العام 1987. تقطع الموقع بشكل عام شبكة معقدة من الطرق المائية بتأثير من المد والجزر والأحواض الموحلة والجزر الصغيرة من غابات المانغروف اليجوج (الذي ينبت على الماء المالح) التي تعطي مثالاً حياً عن عملية تطوّر جيولوجي ممتازة. كما أن الموقع معروف أيضاً لغنى ثروته الحيوانية التي تشمل 260 طيراً ونمر البنغال وأجناساً أخرى مهددة بالإنقراض، مثل التمساح البحري وأفعى بيتون الهندية.

source: UNESCO/CPE
Description is available under license CC-BY-SA IGO 3.0

孙德尔本斯国家公园

孙德尔本斯有着世界上最大的红树森林之一(占地140 000公顷),位于孟加拉湾的恒河 (Ganges)、布拉马普特拉河(Brahmaputra)和梅克纳河(Meghna)三角洲。公园毗邻1987年列入的印度孙德尔本斯世界遗产地。公园内遍布潮汐河道、泥滩和耐盐的红树林小岛,是成长型生态过程的范例。该地区因动物物种多样性而闻名于世,其中包括260种鸟类,还有孟加拉虎和其他濒危物种,如湾鳄和印度蟒蛇。

source: UNESCO/CPE
Description is available under license CC-BY-SA IGO 3.0

Мангровые заросли Сундарбан

Мангровые леса, произрастающие в общей дельте рек Ганг, Брахмапутра и Мегхна на побережье Бенгальского залива, образуют крупнейший в мире массив такого рода. Отдельные участки этого массива охраняются в составе двух объектов всемирного наследия (в Бангладеш – около 140 тыс. га, в индийской части дельты – около 130 тыс. га). Устойчивые к воздействию соленой морской воды, эти заросли занимают небольшие островки, которые разделены протоками, затопляемыми во время приливов. Объект известен и своей разнообразной фауной, включающей 260 видов птиц, а также бенгальского тигра и прочих редких животных, таких как гребнистый крокодил и индийский питон.

source: UNESCO/CPE
Description is available under license CC-BY-SA IGO 3.0

Los Sundarbans

Situada en el delta del Ganges, la región de los Sundarbans abarca 10.000 km² de tierra y agua. La mitad de esa superficie se halla en el territorio de la India y el resto en Bangladesh. El sitio posee la más vasta extensión de bosques de manglares del mundo y es el hábitat de diversas especies raras o en peligro de extinción: tigres, mamíferos acuáticos, aves y reptiles.

source: UNESCO/CPE
Description is available under license CC-BY-SA IGO 3.0

シュンドルボン
世界最大級のシュンダバンスのマングローブ林は、ベンガル湾に注ぐガンジス川、プラマプトラ河、メグナ川のデルタ地帯に形成された世界最大のマングローブ林である。この地帯は140,000haに及ぶ三つの保護区から成り、モンスーンによる降雨、デルタの形成、潮汐の植物群落への影響など進行しつつある生態学上の進展を顕著に示す好例である。1987年に登録された世界遺産であるインドのスンダルバンス国立公園の境界に隣接している。またこの地域は260種に及ぶ鳥類やベンガルトラ、ワニ、ニシキヘビなどの生息地として知られている。

source: NFUAJ

Nationaal park Sundarbans

Het nationaal park de Sundarbans beslaat 10.000 vierkante kilometer land en water in de Ganges delta. Meer dan de helft van dit gebied bevindt zich in India, de rest in Bangladesh. Gelegen aan de monding van de Ganges en de Brahmaputra rivieren tussen India en Bangladesh, bieden de mangrovebossen en waterwegen een breed scala van fauna, waaronder een aantal met uitsterven bedreigde soorten. Het leefgebied bevat de grootste populatie tijgers in de wereld, die zich hebben aangepast aan een welhaast amfibisch leven. De (Bengaalse) tijgers zijn in staat om lange afstanden te zwemmen en eten vis, krab en watervaranen.

Source: unesco.nl

Outstanding Universal Value

Brief synthesis

The Sundarbans Reserve Forest (SRF), located in the south-west of Bangladesh between the river Baleswar in the East and the Harinbanga in the West, adjoining to the Bay of Bengal, is the largest contiguous mangrove forest in the world. Lying between latitude 21° 27′ 30″ and 22° 30′ 00″ North and longitude 89° 02′ 00″ and 90° 00′ 00″ East and with a total area of 10,000 km2, 60% of the property lies in Bangladesh and the rest in India. The land area, including exposed sandbars, occupies 414,259 ha (70%) with water bodies covering 187,413 ha (30%).

The three wildlife sanctuaries in the south cover an area of 139,700 ha and are considered core breeding areas for a number of endangered species. Situated in a unique bioclimatic zone within a typical geographical situation in the coastal region of the Bay of Bengal, it is a landmark of ancient heritage of mythological and historical events. Bestowed with magnificent scenic beauty and natural resources, it is internationally recognized for its high biodiversity of mangrove flora and fauna both on land and water.

The immense tidal mangrove forests of Bangladeshs’ Sundarbans Forest Reserve, is in reality a mosaic of islands of different shapes and sizes, perennially washed by brackish water shrilling in and around the endless and mind-boggling labyrinths of water channels. The site supports exceptional biodiversity in its terrestrial, aquatic and marine habitats; ranging from micro to macro flora and fauna. The Sundarbans is of universal importance for globally endangered species including the Royal Bengal Tiger, Ganges and Irawadi dolphins, estuarine crocodiles and the critically endangered endemic river terrapin (Batagur baska).  It is the only mangrove habitat in the world for Panthera tigris tigris species.

Criterion (ix): The Sundarbans provides a significant example of on-going ecological processes as it represents the process of delta formation and the subsequent colonization of the newly formed deltaic islands and associated mangrove communities. These processes include monsoon rains, flooding, delta formation, tidal influence and plant colonization. As part of the world’s largest delta, formed from sediments deposited by three great rivers; the Ganges, Brahmaputra and Meghna, and covering the Bengal Basin, the land has been moulded by tidal action, resulting in a distinctive physiology.

Criterion (x): One of the largest remaining areas of mangroves in the world, the Sundarbans supports an exceptional level of biodiversity in both the terrestrial and marine environments, including significant populations of globally endangered cat species, such as the Royal Bengal Tiger. Population censuses of Royal Bengal Tigers estimate a population of between 400 to 450 individuals, a higher density than any other population of tigers in the world.

The property is the only remaining habitat in the lower Bengal Basin for a wide variety of faunal species. Its exceptional biodiversity is expressed in a wide range of flora; 334 plant species belonging to 245 genera and 75 families, 165 algae and 13 orchid species. It is also rich in fauna with 693 species of wildlife which includes; 49 mammals, 59 reptiles, 8 amphibians, 210 white fishes, 24 shrimps, 14 crabs and 43 mollusks species. The varied and colourful bird-life found along the waterways of the property is one of its greatest attractions, including 315 species of waterfowl, raptors and forest birds including nine species of kingfisher and the magnificent white-bellied sea eagle.

Integrity

The Sundarbans is the biggest delta, back water and tidal phenomenon of the region and thus provides diverse habitats for several hundreds of aquatic, terrestrial and amphibian species. The property is of sufficient size to adequately represent its considerably high floral and faunal diversity with all key values included within the boundaries. The site includes the entire landscape of mangrove habitats with an adequate surrounding area of aquatic (both marine and freshwater) and terrestrial habitats, and thus all the areas essential for the long term conservation of the Sundarbans and its rich and distinct biodiversity

The World Heritage property is comprised of three wildlife sanctuaries which form the core breeding area of a number of species of endangered wildlife. Areas of unique natural beauty, ethno botanical interest, special marine faunal interest, rivers, creeks, islands, swamps, estuaries, mud flats, and tidal flats are also included in the property. The boundaries of the property protect all major mangrove vegetation types, areas of high floral and faunal values and important bird areas. The integrity of the property is further enhanced by terrestrial and aquatic buffer zones that surround, but are not part of the inscribed property.

Natural calamities such as cyclones, have always posed threats on the values of the property and along with saline water intrusion and siltation, remain potential threats to the attributes. Cyclones and tidal waves cause some damage to the forest along the sea-land interface and have previoulsy caused occasional considerable mortality among some species of fauna such as the spotted deer. Over exploitation of both timber resources and fauna, illegal hanting and trapping, and agricultural encroachment also pose serious threats to the values of the property and its overall integrity.

Protection and management requirements

The property is composed of three wildlife sanctuaries and has a history of effective national legal protection for its land, forest and aquatic environment since the early 19th century. All three wildlife sanctuaries were established in 1977 under the Bangladesh Wildlife (Preservation) (Amendment) Act, 1974, having first been gazetted as forest reserves in 1878. Along with the Forest Act, 1927, the Bangladesh Wildlife (Preservation) (Amendment) Act 1974, control activities such as entry, movement, fishing, hunting and extraction of forest produces. A number of field stations established within Sundarbans West assist in providing facilities for management staff. There are no recognised local rights within the reserved forest with entry and collection of forest products subject to permits issued by the Forest Department.

The property is currently well managed and regularly monitored by established management norms, regular staff and individual administrative units. The key objective of management is to manage the property to retain the biodiversity, aesthetic values and integrity. A delicate balance is needed to maintain and facilitate the ecological process of the property on a sustainable basis. Another key management priority is the maintenance of ongoing ecological and hydrological process which could otherwise be threatened by ongoing developmental activities outside the property. Subject to a series of successively more comprehensive management plans since its declaration as reserved forest, a focus point of many of these plans is the management of tigers, together with other widlife, as an integral part of forest management that ensures the sustainable harvesting of forest products while maintaining the coastal zone in a way that meets the needs of the local human population. The working plans for the Sundarbans demonstrate a progressive increase in the understanding of the management requirements and the complexity of prescriptions made to meet them.

Considerable research has been conducted on the Sundarbans wildlife and ecosystem. International input and assistance from WWF and the National Zoological Park, the Smithsonian Institution as well as other organisations has assisted with the development of working plans for the property, focusing on conservation and management of wildlife.

The Sundarbans provides sustainable livelihoods for millions of people in the vicinity of the site and acts as a shelter belt to protect the people from storms, cyclones, tidal surges, sea water seepage and intrusion. The area provides livelihood in certain seasons for large numbers of people living in small villages surrounding the property, working variously as wood-cutters, fisherman, honey gatherers, leaves and grass gatherers.

Tourism numbers remain relatively low due to the difficult access, arranging transport and a lack of facilities including suitable accommodation. Mass tourism and its impacts are unlikely to affect the values of the property. While the legal protection afforded the property prohibit a number of activities within the boundaries illegal hunting, timber extraction and agricultural encroachment pose potential threats to the values of the property. Storms, cyclones and tidal surges up to 7.5 m high, while features of the areas, also pose a potential threat with possible increased frequency as a result of climate change.

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