Abstract
We investigated the vegetation and its environmental factors which are soil and microtopographic conditions at the sandy beach of Shonan District, Kanagawa Prefecture. As the result of using TWINSPAN classification and DCA ordination, we figured out that the vegetation of research zone was greatly affected by the presence of the sand fence. Although the number of species increased at the place enclosed by the fence, alien species also invaded. It was recognized that the chemical condition of soil such as Na+ decreasing and NO3- increasing etc. changed inside the sand fence due to the reduction of salt spray and shifting sand, and the change was related to the vegetation. As a result, it was considered that the position and the management of the sand fence should be considerate toward not only the point of sand control but also the conservation of coastal vegetation from now on.
