Studies on a hierarchical grand design for nature restoration

最近，日本国内外的各个地区都在进行自然恢复工程。为了有助于制定项目的恢复方法和评估方法，我们对森林、河流、湿地和海岸等各种生态系统进行了研究。层次化的方法非常适合处理各种目标。因此，我们可以开发出许多物种的栖息地模型，以及经济评估策略。

Recently, nature restoration projects are taking place in various regions in and outside Japan. For the purpose to contribute to develop the methods of restoration and the evaluation methods for the projects, we studied various ecosystems such as forests, rivers, wetlands and seacoast. Hierarchical approach was quite appropriate to deal with various targets. As a result, we could develop a lot of habitat models of species, and economical evaluation strategy.