ABSTRACT

As explained in the preceding chapters, many kinds of rocks and volcanic parent materials, several types of climates, different forms of vegetation, a great variation in topography, and landforms of different ages are present in Indonesia. Though a great variety of soils may have been expected to form in view of so many differences in soil-forming factors, surprisingly this

seems not to be the case. The pattern of the soil’s distribution in the archipelago is also more regular as would not have been expected from the presence of the large number of different soil-formation factors.