“experimental forestry” and one of the experiments was to try and measure the effect of tree spacing on growth. The experiment was carried out by planting sugi (Japanese cedar) trees in 10 degree radial increments forming 10 concentric circles of varying diameters."
06 January 2019
Sugi Circles ~ Japanese Tree Spacing Test
Japan’s Ministry of Agriculture, Forestry and Fisheries in 1973 engaged in...