Costs, benefits and climate proofing of natural water retention measures (NWRM) Valentina Villoria – Ömer Ceylan Coordination Workshop Preparation for the WS&D Policy Review and the Blueprint for Europe's Waters 29 June 2011

Methodological and quantitative basis for identifying the financial needs and policy implications at the EU level for NWRM Costs and benefits, and resilience to climate change of NWRM and EU policy and funding instruments to promote no-regret measures Best instruments to create synergies between the EU policy framework and no-regret measures at a river basin level Objectives

1.Structure the information gathered in the call for evidence and complementary sources 2.Provide a quantitative estimate of the potential for NWRM at EU level, and aggregated figures for costs and benefits 3.Analyse the potential implementation barriers or critical success factors for no-regret measures in EU policies, leading to practical recommendations Tasks - overview

1.Structure the information gathered in the call for evidence and complementary sources  Typology of measures and river basins  Available literature and case studies (e.g., LIFE+, INTERREG, FP6/7 projects)  Metadata Catalogue  Gaps in the information  Metadata Catalogue design (in MS Access and to be compatible with WISE and EU Adaptation Clearinghouse) Task 1

Task 1 - NWRM Continuous cover forestry Maintaining and developing riparian forests Restoring and maintaining meadows and pastures Afforestation of agriculture land Buffer strips Crop practices Tillage Terracing Green cover Early sowing Filter strips and swales Permeable surfaces and filter drains Infiltration devices Basins and ponds Green roofs Artificial Ground Water Recharge Wetland restoration Restoration of Lakes Design of shallow impoundments on tributaries of reservoirs Floodplain restoration Bank stabilisation Re-meandering

Task 1 – Deliverable – Catalogue/Database NWRM APPLICABILITY CRITERIA COST COMPONENTS BENEFITS CO-BENEFITS VULNERABILITY INDICATORS EU POLICIES & FUNDING INSTRUMENTS CASE STUDIES/EVIDENCE

Task 1 – Applicability criteria Climate zone North South Land-use type Forests and other wooded land Meadows and Pasture Agriculture land Urban land Lakes and their wetlands Rivers and their wetlands Location Upstream Downstream Soil permeability Low Medium High Soil depth very shallow (< 25 cm) shallow ( cm) moderately deep (50-90 cm) deep ( cm) very deep (> 150 cm) Topography Sloping Critical Steep Mild Floodplain Channel EU relevance No; relevant to only one RB Yes; relevant to > one RB

Task 1 – Benefits and Co-benefits Benefits Co- benefits Erosion control Flood hazard reduction Run-off control Soil quality improvement Groundwater replenishment Food/fiber/fuel Water regulation Pollutant removal Water purification Water quality Evapotranspiration Air quality Climate regulation Aesthetic value Recreation Water cycling Provision of habitat Cost savings Reducing grey infrastructure Avoided damage Material with increased life cycle Other

Task 1 – Cost components Land requirement Acquisition Compensation Construction/rehabilitation Investment Design, contingency, etc. Operation and maintenance Administrative costs Enforcement costs Monitoring Extension networks Other costs Productivity losses Environmental risk Other

Task 1 – Vulnerability indicators Precipitation Land-use change Ambient air temperature Evapotranspiration River discharge Soil moisture Groundwater recharge Water temperature Aridity Index Water demand Erosion Water quality Exposure of population to floods Crop yield

Task 1 – Deliverables – Catalogue in MS Access

Task 1 – Deliverables – Browse measures

Task 1 – Deliverables – Browse case studies

2.Provide a quantitative estimate of the potential for NWRM at EU level, and aggregated figures for costs and benefits  Choose a geographically and typologically representative sample of measures  Provide the JRC the main parameters for an EU-wide modelling of NWRM  Provide the JRC with Policy Scenarios (e.g., implementation of one or various measures) Modelling by JRC (at least three CC vulnerability scenarios) Task 2

2.Provide a quantitative estimate of the potential for NWRM at EU level, and aggregated figures for costs and benefits  Effectiveness of measures at EU level (flood risk prevention, etc.)  Aggregated costs and benefits  Costs and benefits of no-regret measures (emphasis on co-benefits) Task 2

3.Analyse the implementation barriers or critical success factors for no- regret measures in EU policies  Relevant EU policies and EU funding instruments  Result: Policy recommendations Task 3

Thank you for your attention!