In the Minaminaka area of Miyazaki prefecture, famous for Obi cedar, it is said that the material used for shipbuilding is the shell plate material. The company has been producing unique lumber by sparsely planting seedlings.However, due to a decrease in demand for armor material, general wood production is more densely planted than to produce wood to meet the demand for general building materials. Has been migrated to. Under these circumstances, this “stand density test forest” was set in fiscal 1973. In the forest at this test site, the purpose of this study was to demonstrate the growth process and the change in material due to the difference in planting density, and to establish an efficient operation system for Obi cedar in order to switch from sparse to dense planting. , 36 cedars are planted at the intersection of 10 concentric circles with different radii at 10 ° from the center of the circle, and the density per ha is set from 377 to 10,027 . For this reason, when viewed from above, this forest has been talked about as having concentric trunks that look like "mystery circles." * You can see the image from the sky by entering the following location information into the search box of Google earth. 31 ° 43′50 ″ N 131 ° 23′05 ″ E Inside of the test site forest Stand density test forest (drone shot from above) Center of test site viewed from inside the forest
AvogadrosArmy on February 18th, 2020 at 18:30 UTC »
https://www.rinya.maff.go.jp/j/kouhou/kouhousitu/jouhoushi/attach/pdf/2911-9.pdf
Google translate says:
In the Minaminaka area of Miyazaki prefecture, famous for Obi cedar, it is said that the material used for shipbuilding is the shell plate material. The company has been producing unique lumber by sparsely planting seedlings.However, due to a decrease in demand for armor material, general wood production is more densely planted than to produce wood to meet the demand for general building materials. Has been migrated to. Under these circumstances, this “stand density test forest” was set in fiscal 1973. In the forest at this test site, the purpose of this study was to demonstrate the growth process and the change in material due to the difference in planting density, and to establish an efficient operation system for Obi cedar in order to switch from sparse to dense planting. , 36 cedars are planted at the intersection of 10 concentric circles with different radii at 10 ° from the center of the circle, and the density per ha is set from 377 to 10,027 . For this reason, when viewed from above, this forest has been talked about as having concentric trunks that look like "mystery circles." * You can see the image from the sky by entering the following location information into the search box of Google earth. 31 ° 43′50 ″ N 131 ° 23′05 ″ E Inside of the test site forest Stand density test forest (drone shot from above) Center of test site viewed from inside the forest
adventuregalley on February 18th, 2020 at 18:37 UTC »
Reading half a century seems so much longer than 50 years
KolaDesi on February 18th, 2020 at 19:48 UTC »
They remind me of romanesco broccoli