[U-03] Sustainable global groundwater management for human security

[U03-01] Groundwater governance for global sustainability

★Invited Papers

*Makoto Taniguchi¹, Sanghyun Lee¹, Naoki Masuhara¹ (1.Research Institute for Humanity and Nature)

Keywords:groundwater-energy-food nexus, multi spatial scale, tradeoff and synergy

Groundwater governance is important, in particular in Asia, for global sustainability, because more than 70 percent of groundwater depletion occurs in Asia, and more than 55 percent of groundwater footprint for food production is produced in Asia. Groundwater, energy and food are interlinked each other beyond the boundaries of each shed as well as trans-spatially through the food and energy trades. Interactions between groundwater-food-energy nexus under the limited land and climate change, and environmental/ economical/social impacts, are analyzed in terms of multi-scale integrated management and governance of the nexus by increasing synergies and reducing trade-offs. An integrated model for decision support is developed to analyze the nexus and assess environmental and economic impacts, with three databases of resources, interlinkage, and scenario in multi-spatial scale. Tradeoffs are analyzed between economy and environment as well as local and national scale.