금강유역 양수장지구의 농업용수 회귀량 산정 = Estimation of the Irrigation Return Flow of Pumped Water in the Keum River Watershed

다국어 초록 (Multilingual Abstract)

Unused irrigation water due to delivery losses and management losses, and ground water releases from infiltration in the paddy irrigation system are eventually returned to the stream. They are called as irrigation return flow. It affects the discharge of drought flow in the down streamflow. And it may contain chemicals, and threaten streamflow quality. Thus, the accurate estimation of irrigation return flow is important to the streamflow modeling and water resources planning, and also to the control of agricultural nonpoint source pollution. The irrigation return flow of pumped water was investigated in the Keum river watershed.