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Lake Ira Lalaro (also Iralalaro, Ira-Lalaro, Surubec, Suro Bec) is a waterway in Mehara, Subdistrict Tutuala, Lautém District of East Timor. It is the largest freshwater lake on the island of Timor, and the largest lake in the country of East Timor. The lake is part of the Mount Paitchau Important Bird Area.〔(【引用サイトリンク】url=http://seabirds.birdlife.org/datazone/sitefactsheet.php?id=15791 )〕 The lake waters and that of Irasiquero River are a closed aquatic system; they lie within a huge polje. The surface water area fluctuations from while the authigenic catchment area measures . ==Geography and geology== Ira Lalaro is in the far east of Timor island, and is part of the Nino Konis Santana National Park (, which was established in August 2007 by East Timor.〔)〕 The lake is located in a basin bounded by the Paitchau Mountains, within the Lospalos plateau. The region has karstic formations of limestone, with dolines, blind valleys, caves and springs. Ira Lalaro has an average water spread area of , which varies from . It is in a high plateau depression at an elevation of "formed by a huge polje karst formation". The lake flows to the east and as the lake water recedes during the dry season the land exposed becomes a pasture or scrubby grassland. The lake basin is surrounded by tropical dry forest which is of biodiversity value. The Irasiquero River, which originates from Lake Ira Lalaru, disappears in the main sink hole, the Mainina, about downstream of the lake outlet, and does not re-appear; tracer studies indicate that the underground route of water flow leads to the coast. There are human settlements in the area.〔 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「Ira Lalaro」の詳細全文を読む スポンサード リンク
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