河川環境を対象とした環境経済統合勘定表の構築

抄録

In the field of river engineering, conservation and economic evaluation of natural environment is one of the hottest issues. SEEA (System of Integrated Environmental and Economic Accounting) is one possible way to give an answer to this problem. We extended the method of SEEA to natural environment in a watershed. Estimation is carried out in the upper Tone River basin. Water quality, water quantity, forests, fish, fruit trees, cows, and other natural resources are taken into account. A new concept of environmental flow potential is formulated to analyze water quantity instead of discharge. Using this new concept we can quantify the impact of recycling use of water in hydropower stations and irrigation. The SEEA table is formed in material term.