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소유역(小流域)의 유출량(流出量)에 관(關)한 연구(硏究) ~사대강(四大江)을 중심(中心)으로~
이석우 ( Suck Woo Lee ),김시원 ( Sin One Kim ),엄태영 ( Tae Young Um ) 한국농공학회 1980 韓國農工學會誌 : 전원과 자원 Vol.22 No.2
To study run-off characteristics in the small watersheds in Korea, investigations had been carried out for a period of 4 years from 1972 to 1975 in the sample watersheds. The samples were selected in four major river basins such as the Han River, the Keum River, the Nakdong River and the Yongsan River. Water levels and rainfall data had been collected from each sample area where the measuring instruments were installed. The findings of this investigation can be summarized as follows; 1. With an average runoff rate of 60% in the sample watersheds, the average runoff rate in each sample proved to be as below; the Han River Basin : 41.4% the Keum River Basin : 61.7% the Nakdong River Basin : 69.4% the Yong San River Basin : 69.2% 2. The base flow rate in the sample watersheds proved to be 8.1 mm/month. 3. A comparison of the runoff obtained from actual measurements made and that calculated by the Kaijyama formula showed that the latter is 9.1% lower than the former.