其他摘要：We investigated the process of log procurement by sawmills in Hokkaido after the operation of woody biomass power plants. We mailed a questionnaire to 137 sawmills July 2018, and received responses from 92 sawmills by August 2018. We analyzed responses from 84 companies that mainly processed Japanese larch (Larix kaempferi) and Sakhalin fir (Abies sachalinensis). As a result of our survey, approximately 80％ of sawmills in Hokkaido set their own procurement standards including criteria for crooked and decayed logs. The 68％ of mills that sawed mainly Sakhalin fir (Abies sachalinensis) and 40％ that sawed mainly Japanese larch (Larix leptolepis) replied that they felt it was difficult to procure logs that met specific quality requirements, such as girth and length. Approximately 70％ of the logs procured by sawmills were directly shipped from national and private forests. Furthermore, sorting was conducted by the log production entities. We conducted a telephonic survey of five woody biomass power plants regarding how they acquire unused wood for fuel. We found that 90％ of sawmills procured logs from areas within a 100-km radius, whereas power plants procured unused wood from places, such as satellite yards over a wide area up to 250 km away, revealing some overlap. Streamlining log sorting for these two purposes is considered to be challenging in the short term; however, it is important that the community finds ways for improvement.
