ジャワ島中部ムラピ火山の火砕流堆積地における農地復興過程

抄録

The Merapi volcano in Indonesia has previously been studied in various fields as a typical active volcano in Asia. However, few studies have clarified the reconstruction process of agricultural land in the pyroclastic flow disaster area with a focus on both space and time. This study examined the reconstruction process of farmland damaged by pyroclastic flows of the Merapi volcano in 2010 in terms of changes in the lives of the local people. Changes in agricultural land and people’s life as a result of pyroclastic flow damage were investigated by observation and interviews with local people. Damage by pyroclastic flow was found to be attributable to two causes: pyroclastic surge and direct pyroclastic flow. The pyroclastic flow sediments associated with these different types of damage were removed respectively by “mining” and “cleaning.” Further, the different removal methods were shown to affect the crop species planted in the farmlands. This study also suggested that the type of pyroclastic flow sediment significantly influenced the occupations and income of the local people.