| Title |
Analysis of Future Trends for Refractory Dissolved Organic Carbon in the Nakdong River Basin using Elasticity Theory |
| Authors |
박윤경 ( Yoon Kyung Park ) ; 최대규 ( Dae Gyu Choi ) ; 이재운 ( Jae Woon Lee ) ; 강임석 ( Lim Seok Kang ) ; 김상단 ( Sang Dan Kim ) |
| Keywords |
Climate change scenarios; Elasticity; Precipitation; Refractory dissolved organic carbon |
| Abstract |
Refractory Dissolved Organic Carbon (RDOC) is becoming more important index on management of water quality, water regulation as well as ecosystem management. We analyzed trends of RDOC using elasticity in the Nakdong river basin. If climate elasticity of streamflow is positive, change of streamflow can be defined by the proportional change in a climatic variable such as precipitation and temperature. Elasticity of streamflow to precipitation and elasticity of RDOC to precipitation were estimated in the present, and we also analyzed the variation of elasticity in the future using climate change scenarios, RCP 8.5/ 4.5. Mean streamflow elasticity is 1.655, and mean RDOC elasticity is 1.983. RDOC is more sensitive to precipitation change than streamflow. The variation of RDOC is directly proportion to precipitation in all scenarios, but the Load of RDOC is dependent on precipitation as well as others. There is a need for additional correlation analysis between RDOC and other factors for accurate prediction. |