Maintenance and management of urban nature

The catchment includes the River Avon (a major resource for recreational activities and public water supply) and its various tributaries. Coventry is the largest urban area in the catchment, and the catchment has a high value for wildlife. (Ref. 1)
Main priorities include engaging communities to take ownership of their local water environment, reducing urban and rural pollution; delivering enhancement projects in the 3 Priority Areas (e.g. Coventry Brooks) and Returning water corridors to a near-natural state. (Ref. 2). The Catchment Based Approach (CaBA) is a Government policy framework that empowers local action to improve the water environment through community partnerships. A renewed focus on the catchment-based approach has led to Catchment Partnerships (i.e. The Warwickshire Avon Catchment Partnership) being set up to drive local delivery of these projects. (Ref. 3)

As part of the restoration of park Denis Gardens, an innovative water element was built consisting of water flowing down the stairs, circulated and cleaned by a pump and filters. This helps regulate the local microclimate by reducing temperatures in hot days and creating humidity in the air (Ref. 1; Ref. 5). Also, the element allows people to walk bare-footed and cool off. In addition, the water reduces air pollution by extracting dust from the air, and the structure has an aesthetic and recreational function, with a restaurant underneath. (Ref. 1; Ref. 2; Ref. 6).

"This 26-hectare park, the largest in Clermont-Ferrand, offers a privileged view of the city. Several wooded areas serve as shelters for permanent and passing wildlife. For the last two years, gardeners in the park have no longer used pesticides to maintain Montjuzet Park, the effects are already measurable on the enrichment of flora and fauna." "During the development of the Parc Montjuzet, the choice was made to keep 9 hectares without intervention. These hectares could be a source of some ecological richness. Hives have been established near this area since 2009." (Ref. 1) This park has the Refuge LPO label. (Ref 2)

The hurricane Kyrill devastated up to one-third of the tree stock in the city of Münster and thereby changed the green cityscape in 2007. Therefore, the civic society movement "Foundation Citizens for Münster" initiated the project "Bürgerbäume" (literal translation: citizen trees) to foster reforestation of the promenade of the city castle and other affected spots in 2008. In collaboration with the city department for urban green, motivated citizens and citizen groups took over tree sponsorships with up to € 1,000 per tree to help restore the urban green within three months after the event (ref. 1, 4).

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).

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 city of Clermont-Ferrand has 2 sites of family gardens, located at rue Robert Lemoy and rue du Château des Vergnes at which they have installed on a total area of 40 216 m², 172 parcels leased to, mainly, Clermontois residents in apartments without gardens. The gardens are a true place of life for gardeners where families and friends may meet and share convivial moments. Inscribed in a practice respectful of the environment, the gardeners and their cultivations turn toward a kind of agriculture that expects from each gardener an eco-responsible behavior in the production of food (Ref. 1).

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).

“The Living Environment Trust is an environmental charity based in Coventry, which aims to promote environmental and sustainability awareness within local communities. Accordingly, the Trust uses the restoration of neglected inner-city green spaces as a way to engage a range of community groups, whilst also serving to enhance and expand the existing biodiversity and develop important community and educational resources.” (Ref. 1) “The Living Environment Trust was formed in 2007 to transform the neglected land around the Alan Higgs Centre into a community ecological and leisure resource.” (Ref. 2)

In 2016 the Municipality of Lisbon started the renovation of the Botanical Garden of Lisbon, declared in 2010 as a national heritage monument. The botanical garden is both a vital urban open space and a significant cultural landscape of the city. This Botanical Garden is home to an important collection of plants with economic value, reflecting the strong links to the Portuguese expansion and the routes of the navigators that spread them across the various continents. The intervention is expected to provide improvements in the irrigation and water circulation systems, in the rainwater harvesting system, in the reorganization and improvement of garden green spaces, and in the restoration of paths. With the objective of requalifying the space, bringing significant improvements in terms of sustainability of resources, visitors safety, new cultural and recreational opportunity spaces (Ref. 3, 4, 8).