visitors
Finished ！
Wishing a quick and complete recovery to the all victims of
the Noto Peninsula Earthquake in 2024.
At 16:10 on 1 January 2024, there was a magnitude 7.6 (preliminary) earthquake in the Noto region of Ishikawa Prefecture, Japan.
Many roads are reported to be sinking or collapsing. Rescue operations in the affected areas have been delayed because of these problems.
We wish our deepest sympathies to all people who are staying at home or in shelters in the cold winter days.
We also pray for you to rebuild the region with great strength.
Home ＜ Activities Top ＜ mission 3 Regional Design Top ＜ Regional Co-exiting Projects Top ＜ Co-exiting with Satoyama Top
里山との共生
Co-existing with Satoyama
Due to the change of energy policy after the World War II, it is no longer necessary to cut down trees in neglected satoyama.
Furthermore, the number of professional workers managing satoyama is decreasing due to the aging of the population....
Along with social changes, neglected Satoyama is increasing....
The Taya Cave exists with Satoyama.
We also help to ensure that the Cave and the Satoyama co-exist in harmony.
Co-Rrelation of TAYA Cave & Satoyama
洞窟と里山の関係
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Neglected trees are overgrown and difficult to prune ( expensive cost to treat overgrown trees)
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High risk of serious damage to the cave if trees fall in a typhoon (especially tall trees on the slopes are a serious problem)
Relationship between satoyama and underground caves
When trees in a woodland grow upwards, this means that their roots also grow downwards. When these roots grow up to the cave, water and other substances can be transmitted through the roots. The main concern is the destruction of cave walls and ceilings by the roots.
Therefore, a basic environmental survey in the cave and a basic environmental survey in the Satoyama are required.
Therefore, this preservation activity involves a multi-sectoral basic survey, as shown in the diagram below.
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Outline of basic survey
Satoyama Transition
里山の変遷
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Due to the shift in energy use to fossil fuels and electricity, there is no longer any need to cut down trees in the satoyama to supply energy for heat or cooking.
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Due to the aging of landowners, satoyama management work has decreased.
Source: Geographical Survey Institute Map GIS (Electronic National Land Web)
~ Transition of Satoyama in Taya ~
From these aerial photographs, we can see that the satoyama of just after the World War II was almost in a state of bald hills. Today's satoyama are more deeply forested and have taller trees... The cost of cutting down or pruning tall trees is about 1,000,000 yen per tree...