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Saltholm (''Salt Islet'') is a Danish island in the Øresund, the strait that separates Denmark and Sweden. It is located to the east of the Danish island of Amager in Tårnby municipality and lies just to the west of the sea border between Denmark and Sweden. It is 7 km long and 3 km wide, covering an area of 16 km², making it Denmark's 21st largest island. Saltholm is very flat; its highest point stands only 2 m (6 ft) above sea level, rendering it vulnerable to flooding if persistent east winds cause a tidal surge in the Baltic Sea.〔Aage Aagesen, Niels Nielsen, Kongelige Danske geografiske selskab, ''Atlas over Danmark'', p. 117. H. Hagerup, 1992〕 It is a relatively new landmass in geological terms, having risen from the sea about 4,000 years ago, and is surrounded by a large area of shallow water (of 2 m depth or less) that covers an area of 28 km². A series of islets, inlets and rock deposits from the last ice age appear at the south end of the island. Its neighboring island to the south is the artificial island Peberholm (''Pepper Islet''), which is a part of the Øresund Bridge and was named to complement Saltholm. ==Flora and fauna== Saltholm's vegetation is dominated primarily by grasses, with its landscape consisting mainly of flat chalk meadowlands and coastal meadow. There are few trees on Saltholm, clustered mainly in two places in the north and south-west of the island.〔(【引用サイトリンク】 title=København / Copenhagen )〕 The island has a rich variety of flora, notably motherwort (''Leonurus cardiaca''), henbane (''Hyoscyamus niger''), blue iris (''Iris spuria'') and chickweed.〔"Saltholm". ''Aschehoug's Leksikon''. Aschehoug (Egmont), 2008〕 Saltholm is a protected nature reserve for wild birds which nest in large numbers on the island. The southern part of the island, an extensive salt marsh, is protected under the Ramsar Convention〔D. Eisma, ''Dredging in Coastal Waters'', p. 42. Taylor & Francis, 2005. ISBN 0-415-39111-3〕 and the island as a whole, along with the surrounding area of sea, has been designated a nature reserve by the European Union. Mussel beds, eel grass, snails, crustaceans and fish in the shallow waters around the island provide an important food source for water birds. Because of its importance as a wildlife sanctuary, access to Saltholm and its surrounding waters is strictly controlled. Access to the island is via a small harbour at Barakkebro, at the north end of Saltholm.〔 The island is Denmark's largest grazing area for geese, some 7,000 of which visit during the summer. Around 3,500 juvenile swans also live on the island in the summer, with some 2,000 wintering there. 10,000–12,000 ducks breed and graze on Saltholm during autumn and late winter/spring. Saltholm is also home to Europe's largest breeding colony of eiders; 15,000 live on the island during the spring and some 7,000–8,000 are hatched on the island each year. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Saltholm」の詳細全文を読む スポンサード リンク
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