기후변화에 따른 장기유출 변동특성 분석

초록

In terms of water resource management, the natural flow of rivers is stable water supply in water resource planning and water management and river environment, an important factor that has a great influence on many areas, such as permission for use of river water. The natural flow of the river is such an important factor it is actual flow rate measurement should be carried out to establish, a related plan according to the characteristics of the river, and water resource management should be carried out. In this study, analysis of natural flow changes according to climate change was conducted for four river(byeongseong, yeonggang, iancheon, seokcheon) basins in Sangju, Gyeongsangbuk-do. The natural flow analyzed using the measured data was analyzed to have a flow rate difference of at least 4.5 % to a maximum of 43 % compared to the natural flow predicted in 2014 (Sangju Sewerage Maintenance Master Plan). And in the natural flow analyzed using rainfall data from 2011 to 2020, it was analyzed that the flow rate difference occurred by at least 6.7 % to a maximum of 12.2 % compared to the existing predicted flow rate. Considering the climate change that has occurred since 2000, it is necessary to analyze the natural flow rate of rivers and establish a water resource management plan suitable for it through various methods such as analysis of rainfall discharge model using rainfall data.

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