Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Analysis of Future Trends for Refractory Dissolved Organic Carbon in the Nakdong River Basin using Elasticity Theory

탄성도 이론을 이용한 낙동강유역 난분해성 용존 유기탄소 미래 추세 분석

  • Park, Yoonkyung (Department of Environmental Engineering, Pukyong National University) ;
  • Choi, Daegyu (Environmental Research Institute, Pukyong National University) ;
  • Lee, Jae Woon (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Kang, Limseok (Department of Environmental Engineering, Pukyong National University) ;
  • Kim, Sangdan (Department of Environmental Engineering, Pukyong National University)
  • 박윤경 (부경대학교 환경공학과) ;
  • 최대규 (부경대학교 환경연구소) ;
  • 이재운 (국립환경과학원 낙동강물환경연구소) ;
  • 강임석 (부경대학교 환경공학과) ;
  • 김상단 (부경대학교 환경공학과)
  • Published : 2013.07.30
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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.

Keywords

References

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