Ancient Japanese lumber production method without cutting down trees called "Daisugi"

This is an ancient Japanese Sustainable forestry technique called “daisugi”
It allows for lumber production without cutting down trees.

Specially planted Cedar trees are pruned heavily * (think of it as a giant bonsai) to produce shoots that become perfectly uniform, straight and completely knot free lumber.

The shoots are carefully and gently pruned by hand every 2 years leaving only the top boughs allowing them to grow straight. Harvesting takes 20 yeasr and old tree stock and grow up to 100 shoots at a time. The technique originated in the 14 century

It is used on sugi—a Japanese cedar or Japanese redwood in English

Originally invented by the people of the region of Kitayama, the method was used to solve the problem of shortage of seedlings. There is little flat land in the region, and planting and raising trees on the steep slopes proved extremely difficult. As a result, daisugi tailoring allowed arborists to reduce the number of plantations, make the harvest cycle faster, and produce denser wood as well.

Sources

WrathofGnon on Twitter
https://twitter.com/wrathofgnon/status/1250292587241472001

Apparently, This Ancient Japanese Technique From The 14th Century Allows People To Produce Lumber Without Having To Cut Down Trees

https://www.boredpanda.com/sustainable-japanese-forestry-daisugi/?utm_source=google&utm_medium=organic&utm_campaign=organic&fbclid=IwAR2yQRPjtEJUVRMBEjKAt_sBKr_0M00Aou9xx84h5t0cf8zDDLDQVcaSGO4

Learn About Daisugi, 15th Century Japanese Technique for Growing Cedar
https://miifplus.com/learn-about-daisugi-15th-century-japanese-technique-for-growing-cedar/
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