Hibaku jumoku

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400 year old yamaki bonsai ( girl's pine (Pinus parviflora) 'Miyajima') that survived the atomic bombing

Hibaku jumoku ( Japanese 被 爆 樹木 ; also English survivor tree or A-bombed tree ) is a Japanese term for a tree that survived the nuclear attack on Hiroshima in 1945. The Japanese term consists of 被 爆 , literally “being bombed” and 樹木 , literally “trees”. In Hiroshima, trees survived the dropping of the atom bomb in 56 places within a radius of 2 km from the hypocenter . All buildings in the same area were damaged beyond repair.

The heat released by the explosion in Hiroshima was about 40 times greater than the normal heat radiation of the sun during the first three seconds, even at a distance of three kilometers from the hypocenter. The radiation dose in the hypocenter was approximately 240 Gy . In the case of many plants, only the above-ground parts were damaged, but not the underground parts.

The regeneration rate of plants varies depending on the species . Deciduous trees often show strong regenerative capacities while others wither. About 170 trees that survived the nuclear attack on Hiroshima still exist today. The oleander was declared the official flower of Hiroshima because of its ability to regenerate. The camphor tree became the city's official tree. The plants that are considered Hibaku jumoku are listed in a database of the United Nations Education and Research Institute . The most common species there is the camphor tree ( Cinnamomum camphora , twelve times), followed by ginkgo ( Ginkgo biloba , six times) and weeping willow ( Salix babylonica , five times).

Individual evidence

  1. ↑ 被 爆 樹木 . In: デ ジ タ ル 版 日本人 名 大 辞典 + Plus at kotobank.jp. Retrieved March 10, 2017 (Japanese).
  2. ^ A b Frank Barnaby , Douglas Holdstock: Hiroshima and Nagasaki: Restrospect and Prospect . Routledge , 2014, ISBN 1-135-20993-6 .
  3. ↑ a b c Peter Del Tredici: Hibaku Trees of Hiroshima. In: arnoldia.arboretum.harvard.edu. Retrieved May 20, 2014 .
  4. ↑ Green Legacy Hiroshima: Spreading Seeds Of Peace Across The World. In: ANT-Hiroshima News. August 11, 2011, accessed April 11, 2017 .
  5. ↑ Database of Hibaku Jumoku - Atomic-Bombed Trees of Hiroshima. (PDF; 2.6 MB) UNITAR , December 2011, accessed on April 11, 2017 (English).

Web links

Commons : A-Bombed Trees of Hiroshima  - Collection of Pictures, Videos and Audio Files
  • List of Hibaku jumoku in Hiroshima with details of the location and the distance to the hypocenter (Japanese)