2020 年 76 巻 2 号 p. I_811-I_816
This study aims to develop a reservoir-hydropower plant model and incorporate it into a distributed hydrological model to evaluate the effect of dam operation on river discharge and power generation. The model was composed of a reservoir power generation and hydrological processes with a concept of a kinematic wave-based assumption. By using the integrated model to assess the impact of hydropower development in the Nam Ngum Basin in Lao PDR, the results indicated that the change of river discharge at the downstream of Nam Ngum 1 reservoir is +218.8% during the dry season and –28.5% during the wet season in the full development scenario from the natural condition. There is no primary effect on the inflow of the Nam Ngum 1 dam by the operation of the under construction dam. On the other hand, the annual energy product of the Nam Ngum 1 has a minor increase.
