Building Water Resilience in the Face of Global Change: From a Blue-Only to a Green-Blue Water Approach to Land-Water Management

摘要

In 2006 we wrote an editorial for the Journal that highlighted the urgent need for a shift in thinking in water resources governance and management to improve our understanding of social-ecological water challenges and to correct the assessment of water requirements and investment opportunities necessary to feed a growing world population and meet increasing water demands (Falkenmark and Rockstrom 2006). We named this a move from a blue (runoff) focus to a broadened green-blue (soil moisture and runoff) focus (Falkenmark and Rockstrom 2004). The fundamen-tal implication is a shift from seeing runoff to seeing precipitation as the primary water source in governance and management. It furthermore implies a shift from applying integrated water re-sources management (IWRM) as solely a runoff-based manage-ment framework to implementing it as a rain-based water management framework.