Abstract
In order to grasp Influence to the vegetation of the Terraced Paddy Field Embankment by the management in which is an ownership program, vegetation investigation was performed in Oyama Senmaida. It found that the species diversity of the vegetation on the Terraced Paddy Field Embankment is preserved in the owner system enforcement ground. About the species composition, there was no influence of the management in which is an ownership program not much. However, in the owner system enforcement ground, the rate of naturalized plants was high a little, and became a subject in preservation of indigenous plant species.