Circulating on reddit right now are images of an ancient Japanese practice called Daisugi. Daisugi is similar to other coppicing or pollarding practices that were used to create a continuous harvest of timber from a single tree. However, there are some unique differences.Long ago, particular species of trees were found to produce perfectly vertical uniform trunks. It was discovered that pruning techniques could be used to create large lateral branches that could support many vertical trunks. These could be harvested over time and the parent tree would continue to produce harvestable lumber for centuries.