一、资源丰富的世界第六大岛苏门答腊岛是海上交通要通——马六甲海峡的组成部分,是世界第六大岛,印度尼西亚的第一大岛。该岛南北长1790千米,东西最宽处435千米,面积43.5万平方千米,占印度尼西亚全国土地面积的1/4。苏门答腊岛自然资源丰富,有“希望之岛”的美称,经济地位仅次于爪哇岛。该岛西半部山地纵贯,有90余座火山,最高 First, the resource-rich world’s sixth largest island, Sumatra, is part of the Straits of Malacca, the sixth largest island in the world, and Indonesia’s largest island. The island is 1790 kilometers long from north to south, 435 kilometers from the widest point of the east and west, and covers an area of ​​435,000 square kilometers, accounting for 1/4 of the country’s total land area. Sumatra is rich in natural resources. It has the reputation of “Island of Hope” and its economic status is second only to Java Island. The western half of the island runs through the mountains with more than 90 volcanoes.