13:45 〜 14:00 [AGE34-01] Relationship between soil erodibility by concentrated flow and particle-particle interactions of a Shimajiri Maaji soil with a cationic polyelectrolyte ★Invited Papers *山口 敦史1、大澤 和敏2 (1.岐阜大学応用生物科学部、2.宇都宮大学農学部)