Volcanic Ash Soil as The Quality Feature of Indonesian Coffee

Abstract

Indonesia is known as the country that has the most active volcanoes (30%) in the world. Arnold (1988) stated there are more than 1,300 volcanoes in the world, half of them have historic eruptions that affect to the surrounding natural resources and the behavior of the people around them. One of the most important things from the volcanic eruption is the type of rock released during the eruption. The type of igneous rock is released by a volcano will largely determine the type and characteristics of the soil formation. Volcanic ash soil has various names in the world, in Indonesia is known as Andosols, in the USA is known as Andisols, in Japan is known as Kurobokudo, in Chile is known as Humic Allophane Soil, in Canada is known as Acid Brown Forest Soil, In New Zealand is known as Yellow-brown Pumice Soil, while in Germany is known as Andosols and Chernozem. Volcanic ash soils is one of the most fertile and productive soils compared to the others, therefore this region has a very high density of population.