Thomas Hartmann is Assistant Professor in the Department of Human Geography and Spatial Planning at Utrecht University, The Netherlands. His research looks at the relationship between land and water, with a focus on river floods and retention. In this research, he combines planning theory, law and property rights, and water governance.Tejo Spit is Professor in the Department of Human Geography and Spatial Planning at Utrecht University, The Netherlands. He specialises in land policy, planning methodology, infrastructure planning, and administrative aspects of spatial planning. He has worked both in the academic world and the more problem-oriented world of municipalities.

• 1. Frontiers of land and water governance in urban regions Vertical frontiers 2. Groundwater governance and spatial planning challenges: examining sustainability and participation on the ground 3. Impact of short-rotation coppice on water and land resources 4. Regional governance vis-a-vis water supply and wastewater disposal: research and applied science in two disconnected fields Horizontal frontiers 5. Managing urban riverscapes: towards a cultural perspective of land and water governance 6. The governance dilemma in the Flanders coastal region between integrated water managers and spatial planners Fluid frontiers 7. A co-evolving frontier between land and water: dilemmas of flexibility versus robustness in flood risk management 8. Urban planning lock-in: implications for the realization of adaptive options towards climate change risks 9. Land and water governance on the shores of the Laurentian Great Lakes

Thomas Hartmann is Assistant Professor in the Department of Human Geography and Spatial Planning at Utrecht University, The Netherlands. His research looks at the relationship between land and water, with a focus on river floods and retention. In this research, he combines planning theory, law and property rights, and water governance.Tejo Spit is Professor in the Department of Human Geography and Spatial Planning at Utrecht University, The Netherlands. He specialises in land policy, planning methodology, infrastructure planning, and administrative aspects of spatial planning. He has worked both in the academic world and the more problem-oriented world of municipalities.

• 1. Frontiers of land and water governance in urban regions Vertical frontiers 2. Groundwater governance and spatial planning challenges: examining sustainability and participation on the ground 3. Impact of short-rotation coppice on water and land resources 4. Regional governance vis-a-vis water supply and wastewater disposal: research and applied science in two disconnected fields Horizontal frontiers 5. Managing urban riverscapes: towards a cultural perspective of land and water governance 6. The governance dilemma in the Flanders coastal region between integrated water managers and spatial planners Fluid frontiers 7. A co-evolving frontier between land and water: dilemmas of flexibility versus robustness in flood risk management 8. Urban planning lock-in: implications for the realization of adaptive options towards climate change risks 9. Land and water governance on the shores of the Laurentian Great Lakes

Thomas Hartmann is Assistant Professor in the Department of Human Geography and Spatial Planning at Utrecht University, The Netherlands. His research looks at the relationship between land and water, with a focus on river floods and retention. In this research, he combines planning theory, law and property rights, and water governance.Tejo Spit is Professor in the Department of Human Geography and Spatial Planning at Utrecht University, The Netherlands. He specialises in land policy, planning methodology, infrastructure planning, and administrative aspects of spatial planning. He has worked both in the academic world and the more problem-oriented world of municipalities.

• 1. Frontiers of land and water governance in urban regions Vertical frontiers 2. Groundwater governance and spatial planning challenges: examining sustainability and participation on the ground 3. Impact of short-rotation coppice on water and land resources 4. Regional governance vis-a-vis water supply and wastewater disposal: research and applied science in two disconnected fields Horizontal frontiers 5. Managing urban riverscapes: towards a cultural perspective of land and water governance 6. The governance dilemma in the Flanders coastal region between integrated water managers and spatial planners Fluid frontiers 7. A co-evolving frontier between land and water: dilemmas of flexibility versus robustness in flood risk management 8. Urban planning lock-in: implications for the realization of adaptive options towards climate change risks 9. Land and water governance on the shores of the Laurentian Great Lakes