An island at the mouth of the Amazon River in the state of Para in northern Brazil. Part of it faces the Atlantic Ocean and is the largest inland island of its kind in the world. Its area is 48,000 km2 and population is 193,392 (1980). It was formed by sedimentation from the Amazon River, and the eastern half was formed earlier, with much of it remaining unsubmerged (terra firme) even during the rainy season. In the dry season, vast grasslands open up, and livestock farming (especially water buffalo) is thriving. The western half is covered by igapó (underwater forest) and has numerous navigable waterways, which are submerged during the high water season. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
ブラジル北部,パラ州にあるアマゾン川河口の島。一部が大西洋に面した内陸島で,この種のものでは世界最大である。面積4万8000km2,人口19万3392(1980)。アマゾン川の堆積作用によるもので,東半分が早期に形成され,雨季の増水時にも水没しない部分(テラ・フィルメ)が多い。乾季には広大な草原が開け,牧畜業(ことにスイギュウ)が盛ん。西半分にはイガポー(水中森)が広がり,航行可能な水路が無数にあり,増水期には水没する。
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