1998 Volume 7 Pages 67-70
For making lacquer wares Castanea logs more than 16cm in diameter were usually used. We found that from trees having DBH more than 25-30cm the logs of 6 meters in length for lacquer ware making could be obtained. Previous studies on the growth of Castanea trees in natural or artificial forests, 40-50 years were sufficient for the fulfilment of this requirement if the sites were suitable for this species. Logs having malformation or abundant knots were not suitable for this purpose, therefore, the prevention of them by thinning or uplifting of snow-bended trees were necessary. Also thinning would be important to promote growth for shortening the period until harvest.
