DEVELOPMENT OF AN EVALUATION METHOD FOR RIVER ENVIRONMENT

Abstract

Assessment  in  planning   and  designing   process   is  necessary   especially  for nature-oriented  river.  The main purpose  of this study is to develop  an assessment method  for river environment.  At a workshop  composed  of experts  on river environment,  a viewpoint to identify characteristics of watershed  and/or river environment was added to viewpoints of the River Council  in Japan.  Furthermore, the new concept of "intermediate nature"  is proposed  to develop a goal-oriented assessment method.  In this study,  the prototype of a new assessment method  "EMOREK" is proposed,  somewhat  similar  to  the AMOEBA method  developed  in the Netherlands. A case study on the T-river  in Japan was carried  out to realize  the capability  of the assessment method  through problem analysis on the river environment.