Abstract
"Green corridor along the waterside", the tree-planting project by local people is ongoing along the Aidumaogawa River, the second-class river of Aichi Prefecture. Considering the trends on the awareness of biodiversity promoted by the Convention of the Biological Diversity COP 10 held in Aichi prefecture, every project is recommended to take into account of the point of view of biodiversity. However, most tree-planting activities tends to focus on greening but not the biodiversity of the ecosystems up until now. Therefore, we conducted the research to clarify the effect of the tree-planting project on the biodiversity from the view points of "Ecological enhancement of the river space", "Establishment of forest ecosystems", and "Connectivity of the forest ecosystems", considering the hierarchy of biodiversity, which refers to diversity of ecosystems, species diversity and genetic diversity. The three methods, the HEP using an insect-eating bird, the Food Chain Box Method and the Connectivity Analysis, were successfully applied to evaluate the significance of the tree-planting activity on the enhancement of biodiversity along the Aidumaogawa River. These methods would be useful also for monitoring and other cases.
