General National Id Croatia_01 Site name Lonjsko Polje Nature Park Summary The Central Sava Basin (CSB), located in Croatia, is an area that combines natural values with the function of storage of floodwaters of the Sava River. One of the most important areas is the Lonjsko Polje area. About 23 706 ha of this Nature Park is used as the largest detention area in the Central Sava Basin. The purpose of the Life project "Central Posavina – Wading toward Integrated Basin Management" (2006 -2008) was to develop and improve an integrated river basin management approach in the Lonjsko Polje Nature Park and at a Central Posavina scale. This has been done by in particular developing consultative processes and appropriate structures which involve the various stakeholders for the conservation, utilisation and management of the water resources by ensuring non-structural flood control methods which take advantage of the natural functions of wetlands to supplement or replace existing flood control infrastructure. Light or indepth? In-depth The in-depth description of the case study cs-hr-01-final_version.pdf NUTS Code Kontinentalna Hrvatska Transboundary 0 Data provider Adriana Raveau, ACTeon NWRM(s) implemented in the case study Floodplain restoration and management Longitude 16.8333 Latitude 45.3616 Site information Climate zone cool temperate moist Mean rainfall 872 Mean rainfall unit mm/year Average temperature 9,5 Mean runoff 680 Mean runoff unit 600 - 750 mm Type Case Study Info Vegetation class Natural landscape elements and European riverine lowlands (reed, poplar, willow, ash, willow reed, alder, beech, oak hornbeam...). Performance Performance impact estimation method Laboratory Design & implementations Application scale River Basin Installation date 2006 Area (ha) 23706 Area subject to Land use change or Management/Practice change (ha) 17100 Design capacity description The storage capacity would be increased from 634 billion cubic meters (BCM) to 733 BCM. 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 Other Implementation Lonjsko Polje Nature Park Nature Park Regional / sub-national water authority Financing Croatian Water Agency Lessons, risks, implications... Key lessons The purpose of the Life project "Central Posavina - Wading towards Integrated Basin Management" (2006 -2008) was to develop and improve an integrated river basin management approach in Lonjsko Polje Nature Park and at least on a Central Posavina scale. This has been done by in particular developing consultative processes and appropriate structures which involve the various stakeholders for the conservation, utilisation and management of the water resources by ensuring non-structural flood control methods which take advantage of the natural functions of wetlands to supplement or replace existing flood control infrastructure. Success factor(s) Success factor type Success factor role Comments Successful coordination between authorities main factor Financing Financing type Comments EU-funds: LIFE+ Barrier Barrier type Barrier role Comments Information not found Driver Driver type Driver role Comments Balancing different objectives main driver In the year 2000, the World Bank recommended to adjust the 1972 plan to a flood protection scheme that takes into consideration the ecological and landscape diversity values of the floodplains. This 'World Bankplan' would propose measures to mitigate the detrimental impacts on the biodiversity caused by the implementation of the first phase of the 1972 plan. Additional objectives of this new approach are to stimulate the preservation and development of the natural and cultural heritage of the Sava area Financing share Financing share type Share Comments Policy, general governance and design targets Policy description After severe flooding of the river Sava (Zagreb 1964, Sisak and Karlovac 1965 and 1966) a flood prevention scheme, "Sava 2000" was set up and approved in 1972, with the aim not only to prevent flooding, but also to develop the agriculture. The project was a combination of the construction of large storage areas to retain excess flood water which the Sava cannot discharge, and conventional works (construction of dikes and regulation of the river canal). About 40% of the plan was completed when the region was plunged into conflict in 1990 and Yugoslavia fell apart, leaving large alluvial wetlands unregulated. In the meantime, the vision on ecological values changed. In the year 2000, the World Bank recommended to adjust the 1972 plan to a flood protection scheme that takes into consideration the ecological and landscape diversity values of the floodplains. This 'World Bankplan' proposed measures to mitigate the detrimental impacts on the biodiversity caused by the implementation of the first phase of the 1972 plan. Additional objectives of this new approach were to stimulate the preservation and development of the natural and cultural heritage of the Sava area. The Life project "Central Posavina - Wading toward Integrated Basin Management"; fits in this context in particular by promoting an Integrated Sava Basin Management Plan that meets the requirements of the Water Framework Directive. Part of wider plan 1 Policy target Target purpose Improved Biodiversity Peak-flow reduction 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 Policy requirement directive Requirement directive Specification Socio-economic Ancillary benefits information Value added by the preservation and restoration plan results in particular from the protection of the valuable cultural and natural heritage. Costs investment information Information not found Costs operation maintenance Information not found Costs total information The project saves considerable costs, by reducing the amount of water engineering construction: both the length of dikes and the number of distribution facilities are lessened. Accordingly, maintenance costs are also reduced. Additional costs are incurred for designing the new facilities, for modelling the flood waves and for carrying out the risk assessment on the new system. Incremental costs are needed for important improvements to the system, which will secure the longterm sustainable use of the floodplains. Restoration and rehabilitation projects are needed to achieve an integrated water management. Information on Ecosystem improved biodiversity Value added by the preservation and restoration plan results from the improvement of the nutrient sink capacity, protection of the valuable cultural and natural heritage, and the long-term conservation of large inundation areas for transboundary flood protection. The impact on the alluvial forest cannot been foreseen. Information on Ecosystem provisioning services - Water provision to deliver water services to the economy both for drinking and non-drinking purposes. - Flood security and protection. - Amenities (associated to habitat protection): fish and plants, tourism, recreation, and others. Ecosystem impact climate regulation No specific impact Biophysical impacts Information on retained water Information not found Increased water storage 16 Increased water storage unit % Percent Information on increased water storage The storage capacity would be increased from 634 billion cubic meters (BCM) to 733 BCM. Information on runoff reduction Information not found Water quality overall improvements Neutral impact-no change in WQ status Soil quality overall soil improvements Positive impact-SQ improvement Information on Soil quality overall soil improvements Improvement of the nutrient sink capacity. Full Context Pathway(aka Context) Default view Area(aka Level or Site) ALL