전주천 자연형 하천 조성 전 후 수질 특성 연구 = Water Characteristics Before and After Restoration of Natural Type Stream in Jeonju Stream

다국어 초록 (Multilingual Abstract)

Through total 3 times sampling from Jeonju and Samcheon stream, water quality monitoring and ecosystem survey have done. Engineering method area for natural type stream was J-1-J-7, pH in these area were 7.78-9.31. DO values were shown as 7.90-9.61mg/L which containing very rich dissolved oxygen, these values were equivalent to 1st level compared with reference of stream water. BOD were shown as 0.90∼1.9lmg/L to equivalent to lst, 2nd level to reference of stream water. But COD values were 1.63∼3.68mg/L, these values suggested 2nd and 3rd levels to reference of pond and lake water. T-N were 3.30-4.44mg/L, which were out of level of 5th to it. T-P were 0.017-0.076mg/L and these were also equivalent to 3rd level to it. Water quality level in natural type stream area showed effective results in many items, but total nitrogen showed very high concentration compared with other items. Now under restoration area at J-8 and J-9, water quality have had more higher polluted values than natural type stream area. It was concluded that water quality after restoration natural type stream was changed into 1st level water quality at almost every points in Jeonju stream.