Roughness characteristics of natural streams were investigated by consistent measurement for test streams. Physical and ecological structure of natural stream also have be investigated for natural test streams. From these research, roughness character...
Roughness characteristics of natural streams were investigated by consistent measurement for test streams. Physical and ecological structure of natural stream also have be investigated for natural test streams. From these research, roughness characteristics of natural streams show high divergence during low flow, and the range of roughness also show high divergence. From the correlation analysis for physical characteristics and ecological characteristics, these two factors shows high relationship. From these results, more effective restoration can be possible. River environment evaluation system is developed based on LAWA method, and plan for multi-functional river experiment station is finally designed.