On the relation of the bush cutting on the invasion and growth of woody plants at the Asahi-yama ski slope, Asahikawa, northern Hokkaido

Abstract

1. Total number of woody plants is 45 species, anemochoryl 17 and zoochoryl 28 species, and its density is about 13 thousands per ha. 2. Trees and shrubs are bushy according to bush cutting in every early winter and they have grown again and again by epicormic shoots. 3. In invasion and growth, they are also influenced by stout perennial herbs and grasses. 4. These mixed vegetation of trees, shrubs, herbs and grasses are the best ground cover for the soil and water conservation at the ski slope.