Cao Yifan、黒田乃生（筑波大学）
D08
Thatched-roof, known as “Kayabuki,” houses are quintessential elements of Japanese rural scenery, requiring periodic roof re-thatching to maintain their residential function. In the Gokayama region, a traditional local material called “Kariyasu (Miscanthus tinctorius）” is used for roofing, and homeowners conventionally cultivate their own “Kariyasu” grasslands to secure maintenance materials. However, recent changes, such as labor shortages, have have led to alterations in crop size, location, and management. This study utilizes GIS with aerial photography analysis to investigate these changes and the current status of “Kariyasu” grasslands through on-site interviews, and re-evaluating their role across different periods in the Gokayama region.