General National Id Germany-01 Site name Halter-Hommrich Summary This Project realized a combination of three natural water retention measures: the restoration of meadows and pastures (A1) as well as a large floodplain (N3). Furthermore reduced tillage (A7) was introduced to the area. The location of the measures was in north-west Germany within the river basin district Weser (DE4000). They were directed at national policy contexts, namely the Lower Saxony otter protection program and the Lower Saxony wetlands protection program, although they also mitigate impacts identified by the WFD. As mentioned above, the measures also served the creation of large scale floodplains. As result a wide variety of stakeholders were involved in the implementation, ranging from nature conservation agencies and water managers to local farmers. Therefore, different parts of the measures could be financed by different sources. Apart from the main objectives of the project, it was also an important success in terms of cooperation of different stakeholders. Light or indepth? In-depth The in-depth description of the case study cs-de-01-holter-final_version.pdf NUTS Code Weser-Ems RBD code DE4000 Transboundary 0 Data provider Tamer Fawzy, BEF DE Source(s) Modelprojekt Holter-Hammrich NWRM(s) implemented in the case study Wetland restoration and management Meadows and pastures Green cover Longitude 7.6115 Latitude 53.1982 Site information Climate zone cool temperate moist Mean annual rainfall 0 - 300 mm Mean rainfall unit mm/year Average temperature 9 Mean runoff unit 450 - 600 mm Type Actual Test Site Mean annual runoff range 150 - 300 mm Average slope range 0%-1% Vegetation class Grassland Monitoring maintenance Monitoring impacts effects 0 Performance Performance impact estimation method Unknown Performance impact estimation information N.A. Design & implementations Application scale Field Scale Installation date 2011-05 Lifespan 40 Age 3 Performance timescale 1 - 4 years Area (ha) 223 Area subject to Land use change or Management/Practice change (ha) 223 Size 223 Size unit ha Design capacity 3800000 Basis of design rainfall Constraints none Favourable preconditions natural site conditions, in particular the height variations of the area Design contractual arrangement Arrangement type Responsibility Role Comments Name Design consultation activity Activity stage Key issues Name Comments Design land use change Land use change type Design authority Authority type Role Responsibility Name Comments National water authority Implementation Martin Wendeburg Lessons, risks, implications... Key lessons A continuous and open discussion between all involved groups led to a high acceptance of the overall process. It was a key lesson of this measure that cooperation between different sectors (flood protection, nature conservation etc.) as well as different stakeholder groups (government agencies, NGO†™s) are able to cooperate in effective networks, when a consistency of goals is given. Success factor(s) Success factor type Success factor role Comments Attitude of relevant stakeholders Communication activities Financing Financing type Comments National funds Landacquisition for the implementation of NWRMs was paid by the State of Lower Saxony. Other measure were financed from different sources due to the various goals. NWRM unrelated constructions of dykes and technical facilities were paid from water management sources, whereas reconstructions of roads were paid by rural development funds. The cost for a specially prepared trail with nature information were covered by European funds. Barrier Barrier type Barrier role Comments Other There were no major implementation barriers, although the benefit for nature conservation aspects were doubted by nature conservation NGO†™s. It was argued that the use of the structure as a flood protection and water storage facility would counteract the habitat restoration means in extreme cases of floods. By a continuous and open discussion these uncertainties were resolved. Driver Driver type Driver role Comments Organisation committed to it main driver The NLWKN is the Nature Protection Agency of Lower Saxony Availability of subsidies secondary driver Financing share Financing share type Share Comments Policy, general governance and design targets Policy description Nutrient Pollution Policy target Target purpose Improved Biodiversity Policy pressure Pressure directive Relevant pressure Policy area Policy area type Policy area focus Name Comments Policy impact Impact directive Relevant impact Policy wider plan Wider plan type Wider plan focus Name Comments Lower Saxony otter protection programme Lower Saxony wetlands protection programme Policy requirement directive Requirement directive Specification Socio-economic Direct benefits information none Costs investment 12600000 Costs investment information Technical constructions Specially prepared trail for nature information and experience New Roads for farmers Costs operation maintenance N.A. Costs total 12600000 Costs total information see above Information on Economic costs - income loss Actual income loss: Lease Agreements are given out for free, due to heavy regulations for farming Ecosystem improved biodiversity 1 Information on Ecosystem improved biodiversity Extensification or abandonment of agricultural use and high water levels in spring support an increase of characteristic breeding birds for example. Amphibians benefit from standing water bodies. Information on Ecosystem provisioning services N.A. Ecosystem impact climate regulation No information available Information on Ecosystem impact climate regulation N.A. Biophysical impacts Information on retained water 3.8 million m3 Information on increased water storage N.A. Information on runoff reduction N.A. Water quality overall improvements N/A info Information on Water quality overall improvements N.A. Soil quality overall soil improvements N/A info Information on Soil quality overall soil improvements N.A. 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