山形県 (Yamagata Prefecture) — инструкции и руководства

Документов в разделе: 1

• 赤川水系河川整備計画(県管理区間) - 山形県ホームページ

  92 стр. · 10 просмотров

  This official document outlines Yamagata Prefecture's river basin management plan for the Akawa River system, focusing on county-managed sections. It details infrastructure maintenance, flood control measures, and water resource management strategies to ensure public safety and sustainable development.