Middle Warta River Valley

General
River Characterisation
River typology
Biological quality elements
Ecosystem Services
EU Directives
	Habitats Directive; Birds Directive;
Pressures
	Hydrological regime modification; Artificial barriers downstream from the site; Alteration of instream habitat; Embankments, levees or dikes; Impoundment; Alteration of riparian vegetation; Channelisation / cross section alteration;
Measures
	Improve/Create water storage; Improve water retention; Increase flood frequency and duration in riparian zones or floodplains; Link flood reduction with ecological restoration; Manage aquatic vegetation; Modify culverts, syphons, piped streams; Reconnect backwaters and wetlands; Restore wetlands; Retain floodwater;
Other

Key features of the case study

General
Country	PL
River Name	Warta
Site Name	Warta Middle River Valley
River Characterisation

River typology
Location (Lat Lon)	52.19303, 17.89746
Altitude	lowland: < 200 m
Catchment area	very large: > 10000 km2
Geology	Calcareous
National code/ River type name	21 Large lowland river
Biological quality elements

Ecosystem Services

EU Directives
Habitats Directive Birds Directive
Pressures
Hydrological regime modification Artificial barriers downstream from the site Alteration of instream habitat Embankments, levees or dikes Impoundment Alteration of riparian vegetation Channelisation / cross section alteration
Measures
Improve/Create water storage Improve water retention Increase flood frequency and duration in riparian zones or floodplains Link flood reduction with ecological restoration Manage aquatic vegetation Modify culverts, syphons, piped streams Reconnect backwaters and wetlands Restore wetlands Retain floodwater
Other
Project size	420 ha
Approximate costs	100 000 - 1 000 000 Euros
Synergy	recreation, agriculture, increase biodiversity, water management
Status	Realised
Period of realization	2008
Evaluation	Hydromorphological and ecological changes
Implemented by	General Directorate of National Roads and Motorways