Abstract
Application of porous concrete to vegetation-covered revetment structures is increasing. However, there are only limited numbers of quantitative reports on the effects of POC flumes on restoration of ecological habitats. POC flumes were surveyed and compared with conventional concrete flumes and earth flumes. It has been demonstrated that rich ecological habitats can be established more quickly and securely in POC flumes than in conventional concrete flumes. Three major environmental elements such as vegetation, mud and grit are observed in POC flumes, and biodiversities are being kept.