Water management (SDG 6)

Park Lužánky underwent extensive reconstruction between 1991-2012 through five phases (Ref 2) to restore a recreational hub of the city's largest park through ecologically sound design (Ref. 1; Ref. 2). Each phase worked restored different sections of the park. This included modification of green areas, landscaping (treatment of trees, planting new trees and perennial plants, restoration of grasslands), building a children's playground, a fitness park, and an artificial water element that imitates the former stream of the river Ponávka. (Ref. 1).

Revival is a partnership which is committed to delivering improvements for wildlife and people on the Lower Don catchment from the Don Gorge to Goole. It enables organisations over a whole host of different sectors to come together and work under one shared vision: create a committed partnership delivering improvements for wildlife and people on the Lower Don catchment. This intervention is thus a change in the governance of natural areas in and around Doncaster that leads to projects, rather than being a specific project itself. The River Don Revival project will continue to fight for the river’s future. Firstly, an action plan will layout the manual work necessary to improve the river and the catchment as a whole. In addition, the partnership intends to work with a scheme called the NW Water Rangers to encourage the public to engage in citizen science, collecting evidence of poor water quality. The partnership will also work closely with the South Follingsby Park development to implements Sustainable Urban Drainage Systems, to create new habitats and to improve the river itself. Finally, the partnership hopes to appoint a dedicated member of staff to oversee all of the work taking place on the Don. (Ref 1, 2, 7).

Tree heritage is an essential component of the urban environment in Clermont Ferrand. The city has a special plan for conserving the trees, proposing a tree charter (Ref 6) and made a major effort to extend its tree heritage. Different actions are undertaken by the city's council for conserving and planting trees around the city. For instance, the tramway has integrated the plantation of 1,400 trees and 140,000 shrubs (Ref. 1). In 2019 the city solicited a preliminary study on metropolitan trees for the development of a metropolitan tree charter (Ref 7).

The Willem Alexander Park is the first roof park of Utrecht and is built on a highway tunnel (the A2 highway) and includes meeting areas, sports and activities and a community garden that contributes to social cohesion. It also allows for cultural development by creating spaces for art and culture and includes a sustainable drainage system (ref. 1, 2). In addition, the Willem Alexanderpark is the first park in which almost two hectares consists of prairie plantings (ref. 2).
The park is intersected by the roads between the City road and Leeuwenstein-North. Each segment between the roads has its own thematic program, appropriate to the size and location in the urban context. The themes are:
– connect & meet
– art & culture
– sports & games
– nature & education
– food & drinks (ref. 4)

"The Coventry Water Vole Project aims to improve Coventry’s waterways and riverside habitat for water voles." "Water voles are Britain's most severely threatened mammal. Numbers have declined by as much as 95% in Warwickshire in recent years due to threats such as habitat loss, habitat fragmentation, poisoning, and predation.” "The Coventry Water Vole Project has focused on the control of the non-native and highly invasive plant Himalayan balsam, followed by replanting some riverside areas with native 'water vole friendly' wetland plants." (Ref. 1)

The project relating to the waterfront of San Girolamo di Bari is an important piece of the mosaic that provides a new design for the entire city waterfront, from North to South: Santo Spirito, Palese, (precisely) San Girolamo, the connection between Bread and Tomato and Torre Quetta, temporary uses on the San Giorgio waterfront, up to the redevelopment of the South promenade. The project which is almost completed, regenerated the seaside part of Bari, making the seaside accessible and link the city with the coastal area by creating a multi-functional space where playgrounds, a cycling path and green open spaces were built to enhance the liveability of the area. In this way, what was previously considered just as an economic and working part of the city became a new center of social interaction by creating a new institutional green space. (Ref.1, Ref.6).

The park has been upgraded to include newly planted trees and shrubs, a meadow, children playgrounds, sitting areas for adult visitors, a wooden footbridge, and a water retention pond which collects rainwater from the roofs of nearby houses. The aim of the project was to establish and restore near-natural vegetation in the urbanized area, enhance biodiversity at the site, handle rainwater in a smart way, and provide a place for recreation (Ref. 2; Ref. 3; Ref 4). Additional restorations have included the creation of barbecue areas for gathering and cooking, and events are hosted at the space as well (Ref 8). Through voting, wider park expansions have also been approved (Ref 9).

A former American military base was purchased by a private investor in 2014. Due to this event, the city decided to redevelop the whole area covering 27 ha and to create a development plan for a forward-looking quarter based on an architectural competition. In parallel to the development, information events for the wider public took place. The new quarter will be constructed according to criteria set out by the German Association for Sustainable Construction. Objectives of this plan are also to improve the microclimate, biodiversity, connectivity, social and functional diversity of the district (Ref. 1 and 2). In 2020, construction work had not yet started. Plans are to begin construction in 2024 the earliest and to complete it by 2027. (Ref. 7)

The Hachinger Brook is a natural water body, which level of water is highly influenced by groundwater. Due to the spatial expansion of Munich, sections of the brook were forced into concrete canals and pipes. The idea of restoring the brook into a quasi-natural state had already emerged in the committee of city panning in 1984. The city council of Munich decided in 2014 is to reconstruct the natural state on a 2,6 km stretch of the Hachinger Brook between Kampenwandstraße and Hüllgraben by excavating it and to turn it into a recreational area. In addition to the stream, the former village pond next to the stream is planned to be restored. (Reference 1) Trees and other vegetation will be planted alongside some sections of the brook. (Reference 1, 2). Because of the reluctance of the landowners on the proposed site of the intervention to accept a brook flowing through their property, in 2020, the implementation still hasn’t begun. (Reference 7)

In an effort to improve the Holásecká lakes for both recreation and local natural conditions, the revitalization project has modified areas on the shores of the Holásecké lakes reconstructed culverts between the lakes, and removed the panel which fortified the Opleta and Lávka lakes (Ref. 4). The largest restoration activity includes removal of mud from the lakes (which can be repurposed due to low contamination) for the sake of ecologically restoring the area (Ref. 4). Plans also include improving recreation by installing wooden piers and developing a paved footpath with benches (Ref. 1). The ecological restoration will be important for wildlife, especially birds and amphibians (Ref. 8).