The island area consists of mountainous slope, foothill plain and valley areas. Whereby 80 percent
of the area is a mountainous area stretching along the north to the south. Most mountains are on
the western side of the island, causing the coastal plains. The western side is narrow, while the
north and northeast are the plateau with a short waterway flowing into the south and east. 30
percent of the area is a flat area, which is mostly in the middle of the east and west coast. The
landscape of the soil is deep soil, loamy soil, clay loam and sandy loam soil. The lower soil consists
of clay soil. The sandy loam soil, sandy clay. The top of the soil is sandy. The soil has low to
medium fertility, which is well drained. The acidity of the soil is about 4.5-5.5. The soil is suitable
for growing vegetables and fruits.