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Water Scarcity Assessment Using Green and Blue Water Concepts

그린워터 및 블루워터를 이용한 물부족 평가

  • Kim, Sung Eun (Graduate School, Seoul National University) ;
  • Lee, Dong Kun (Department of Landscape Architecture and Rural System Engineering, Seoul National University) ;
  • Yang, Byung Sun (Interdisciplinary Program in Landscape Architecture, Seoul National University) ;
  • Jin, Yihua (Agricultural College of Yanbian University)
  • 김성은 (서울대학교 대학원) ;
  • 이동근 (서울대학교 조경지역시스템공학부) ;
  • 양병선 (서울대학교 협동과정 조경학) ;
  • 김예화 (연변대학교 농학원)
  • Received : 2017.11.30
  • Accepted : 2018.05.30
  • Published : 2018.06.30

Abstract

With climate change and population growth, there are significant increases in water scarcity. There have been water security assessments to abate the gap between water demand and availability to support water resource management. However, most of the assessments are focusing on the water that flows through either on or below the land surface, failing to consider water that infiltrates and can be used by vegetation. This study presents water scarcity assessment accounting for Blue and Green water concept, and applied the method to Boryung region. Monthly streamflow, evapotranspiration, and soil moisture were estimated by SWAT modeling, and each of them was used to analyze Blue and Green water scarcity. Blue and Green water scarcity had different aspect, and the result indicated the time when water scarcity is more likely to happen. The water scarcity assessment framework presented in this paper provides novel assessment method integrating hydrologic and ecosystem aspects, thereby improving the understanding of how water resources should be managed.

Keywords

Water availability;Water security;Green water;Water footprint;SWAT;Climate change

Acknowledgement

Supported by : 환경부

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