Abstract
In the biotope project at the campus of Hiroshima University in Higashi-Hiroshima City, we evaluated the ecological value of actual vegetation in the project area. Through the landscape level analysis using three maps (vegetation map, topographic map, map of construction recorded) and map overlay method, vegetation patches were classified into two categories, conservation site and the suitable site for improvement. In a pine (Pinus densiflora) forest with Asarum hexalobum belonging to the conservation site, a distribution map of tree and Asarum hexalobum populations was made to estimate the distance free from the effect of revetment construction. On results of these landscape and population analyses, we discussed whether or not evaluating methods are available. These landscape ecological approaches for biotope planning may help the similar project in other places.
