소양호 상류유역의 비점오염원 유출특성에 의한 원단위 산정

Estimation of the Unit Load by the Outflow Characteristics of Non-Point Source Pollution in the Upstream Watershed of So-yang Lake

From 2000 to 2004, the research was carried out at Naerin-cheon and Inbook-cheon, the up Soyang Lake, to study the relationship between precipitation and eutrophication-causing water T-N and T-P. During the five years, the amount of flowing water was measured, and the water examined under different precipitation levels. From the observation, outflow patterns of the and changes in the water quality factors at the time of rainfall were clarified, In addition, unit load was made for each stream; for Naerin-cheon at the time of rainfall, we estimated 1,112㎏/㎢/year, T-N to be 2,077㎏/㎢/year, and T-P to be 223㎏/㎢/year; for Inbook-cheon rainfall, we estimated BOD to be 1,229㎏/㎢/year, T-N to be 1,565㎏/㎢/year, and T-P to For the time of no rainfall different estimation was made; for Naerin-cheon, we estimated BOI ㎢/day, T-N to be 5,004g/㎢/day, and T-P to be 53g/㎢/day; and for Inbook-cheon, we estimated 1,550g/㎢/day, T-N to be 2,283g/㎢/day, and T-P to be 42g/㎢/day.