| Title |
Development and Application of the Grid-Distributed Model for Contribution Rate Analysis on Non-point Source Pollution According to Landuse |
| Authors |
안정민 ( Jung-min Ahn ) ; 정강영 ( Kang-young Jung ) ; 김신 ( Shin Kim ) ; 이혜진 ( Hae-jin Lee ) ; 신석호 ( Suk-ho Shin ) ; 양득석 ( Duk-seok Yang ) ; 신동석 ( Dongseok Shin ) ; 나승민 ( Seung-min Na ) |
| DOI |
https://doi.org/10.15681/KSWE.2017.33.1.78 |
| Keywords |
EMC; Gwangsancheon; Non-point source loading; Runoff |
| Abstract |
Water quality monitoring network data is being affected continuously due to non-point source pollution arising from agricultural land located on the Gwangsancheon outlet in the Nakdong River basin. In this study, we have performed analysis of water quality monitoring system, water quality pattern using SOM and water quality in the Gwangsancheon for sub-basin located at Gisan-myeon in the Nakdong River basin. We developed and applied the model to estimate the runoff and non-point source loading. As a result of SOM pattern, the effect of non-point source pollution was the largest in the paddy fields and fields. As a result of the developed model, we found contribution rate and reduction rate for non-point source loading according to change of landuse because the reduction effect of nonpoint pollutants was 20.9% of SS, 9.9% of TN, 21.2% of TP and 8.9% of TOC depending on the landuse change. |