Previous studies focusing on the Kyushu region, a major cedar-producing area, have identified the deterioration of forestry management conditions as a primary driver of reforestation abandonment. In contrast, in regions where Japanese larch (Larix kaempferi) production is flourishing─fueled by rising log prices and growing demand for plywood and laminated wood products─the current status of reforestation remains insufficiently understood. This study seeks to elucidate the development of clearcutting and reforestation in Nagano Prefecture through a review of literature and statistical data. Specifically, an analysis of logging notifications in the Saku region─the prefectureʼs most active clearcutting area─reveals insight into the actual conditions of post-harvest reforestation. The results show that while clearcutting in the Saku region has expanded since the late 2000s─driven by rising timber demand─this expansion did not necessarily lead to increased reforestation. Instead, reforestation was bolstered by Nagano Prefectureʼs supplementary subsidy programs, along with the efforts of forest ownersʼ cooperatives and specific private forestry entities actively committed to reforestation. Conversely, small scale logging in privately owned forests and the presence of private forestry entities with low reforestation rates acted as barriers to reforestation.

View full abstract