Public local authority budget

The largest rain gardens in Sweden (thus far) has been created in Göteborg (Kviberg park). Kviberg's multisport arena was completed in the summer of 2015 in the northeastern part of Göteborg. Around the facility, there are parking spaces with a capacity for 500 cars. In order to handle the rainwater flowing from the parking area, approximately five per cent of the total area has been used for rain gardens, which both clean and store the rainwater. (Ref. 1, 2)

The restructuring of the main road Gran Via Fernando el Catolico has seen a rehabilitation of its green areas in two distinct plots: one occurring at its intersection with Calle Lagasca, and one at its intersection with Corona de Aragon. The intervention is connected to relieving the heat island effect that occurs in the city center, increase greenery with the planting of 114 new trees and making the main traffic artery more accessible and pleasant to pedestrians. (Ref. 1-5)

"Grünes" C is an initiative of six municipalities (Alfter, Bonn, Bornheim, Niederkassel, Sankt Augustin and Troisdorf) to secure, connect and (re)develop open and recreational spaces (agricultural, cultivated, garden, commercial landscapes, protected nature areas, rivers, transport routes). The major objective is to create an accessible, united park landscape in the original area of the "Grünes C" which spans 37 square kilometres to preserve those landscapes facing urban pressure. This is envisioned through a set of interventions initiated in and around the participating municipalities. Bonn has three interventions that will be dealt with here (3,4,5,9)

This is a tree-planting initiative for the creation of a new forested area in the Parco Nord of Bologna. During the project lifetime (originally planned from2016-2018), a total of 4.000 new trees will be planted. The trees will be 2-2,5 meters high to give the appearance of a forested area inside the city (1).
As of 2019, the implementation of the forest is on hold and it depends on the construction of the so-called "Passante di Bologna", namely a highway with 3 high-speed routes. If the highway is approved (and there is enough funding) then the forest can also be implemented (6).

The project LIFE SeResto (LIFE12 NAT/IT/000331) aimed to trigger a process of aquatic recolonisation in “Northern Lagoon of Venice”, mainly through the transplantation of "Zostera marina" and "Zostera noltei" to small sites distributed throughout the area. The proposed intervention technique involved transplanting a small number of plants, with advantages in terms of lower costs and impact on the donor sites (1).

These gardens fulfil several purposes and have become more and more often a point of aggregation and leisure, of socialisation and recreation, didactic and cultural education. Two interventions were made and in 1991, where 36 and 48 ornamental plants were produced. Subsequently, the gardens were built in the PEEP area of ​​Zelarino (in 1997), and in via Pertini (in 2002) and thanks to the environmental context and the available space, an element of novelty is introduced: the gathering area for communities to share environmental common values and activities. (2).

San Giuliano Park, inaugurated in May 2004, was designed by Arch. Antonio Di Mambro of the Comunitas Group. The first two lots have been implemented for a total area of about 74 hectares, including green areas and recreational infrastructure. The creation of this park is one of the biggest re-qualification initiatives in the national territory. With the implementation of the park, the area of Punta San Giuliano, used for years as a landfill of industrial and urban waste, definitively loses its barrier function between Mestre and its lagoon and returns to the natural state of the ancient city (1).

The project opts for switching to more sustainable and organic ways of handling natural parks in the urban areas of the city of Bologna. The project was launched in 2008 and focused on 100 hectares, meaning 10 parks (out of the 1.100 total in the city). The goal is to develop maintenance techniques with low impact on local flora and fauna, stimulating biodiversity and an equilibrium with the surrounding urban environment, as well as the reduction of toxicity impacts for vulnerable residents (i.e. children and elderly people) (1 and 2).
This NBS solution focuses on changing maintenance of Bologna public urban parks from conventional techniques to biological ones (1 and 2).

This is a pilot project part of the strategic plan "Città di Città" in the Milano province, launched in 2006 by the Direzione Centrale Risorse Ambientali, by the Parco Agricolo Sud Milano and by the Multiplicity.lab of the Politecnico di Milano. The project consists in the realisation of a green ring surrounding the city for an extension of 30.000 hectares (15% of the metropolitan area). The ring will connect a series of green areas already existing in the city. The project will insert a total of 3 million new trees along different areas of the city (2). The "metrobosco" is described as: a green belt made up of new forests, parks and rows that extend along the borders of the capital of Milan. A continuous ring of trees and small and large clearings to meet farms, abbeys, watercourses, agricultural areas and spaces for recreation and sports. The project arises from the need to redefine the relationship between city and country, to intensify plant and animal biodiversity, the preservation of existing and the construction of new "ecological corridors", the mitigation of climate imbalances, the abatement of noise and atmospheric pollution, the care and maintenance of the territory and the production of sources for agro-energies (4).

Bjerkedalen is a recently constructed park around the Hovin creek in Bjerke District. It is situated in the middle of a settlement block, which used to have few public spaces. The park now acts as a recreational area with lots of green space, a river and several facilities for outdoor activities. The construction of Bjerkedalen park incorporated the installment of several important blue-green structures and features such as planting native trees and plants along the river, providing open grassy areas as well as reopening the Hovin river from underground pipes, with the aim of improved water quality and flood prevention.(Ref. 2)