Journal Article 〔報文〕保存科学から見た被災遺構の保存・活用の歴史

朽津, 信明  ,  森井, 順之

The word “earthquake remains”has become widely noticed after the Great East Japan Earthquake of 2011,and most of the effectively-conserved “disaster remains”in Japan are the ones related to all types of disasters, not limited to earthquakes,after 2011.However, the period between similar large-scale disasters occurring due to the same cause is normally by far longer than the life of a man.Therefore,when retaining “disaster remains” in order to prevent further disasters, it is also necessary to conserve “disaster remains” which occurred far before the birth of present people. The present paper discusses how “disaster remains”have been regarded by people and how their conservation has been attempted historically in Japan. Though “disaster remains”dating from tens of thousands of years ago are quite commonly found by excavations in Japan, there are almost no remains of disasters which occurred in the ancient times or the middle ages that are conserved and utilized in situ.After the modern era,geological outcrops,such as faults and products of volcanic activities,have become conserved as “natural monuments”for mainly academic reasons. However, conservation science has not contributed much to their conservation.It is basically after the 1990’s that “disaster remains”have become conserved in order to prevent future disasters.Since conservation science has already been contributing to the preservation of archaeological sites appropriately and to the transmission of their values down to people in the future, it is also expected to fulfill a similar role with “disaster remains,”which are traces of natural phenomena and not of human activities.

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