Citizen tree sponsorships programme
The city of Leipzig initiated the project "Für eine Baumstarke Stadt" in 1996 to integrate community support into the greening of Leipzig through tree planting. Citizens can become tree sponsors with a donation of 250 Euros or more supporting the increase of the tree stock in parks, on the street and at squares since they are planted in addition to the tree stock determined by the city department for urban green. The sponsorship includes a sign with the indication of the tree species and a personal message. This programme contributes to a greener city landscape and strengthens the attachment of citizens to their urban environment (1, 2, 3).
Development of the Garden of the Schloessel
The Development of the Garden of the Schloessel project is part of the Natural Urban Park project undertaken by the City Council in consultation with the Strasbourg Urban Community (Ref. 3). The project aims to reduce the carbon footprint of the area by installing and redeveloping green spaces in the garden as well as providing the site with stormwater management infiltration (Ref. 1).
Malaga Park
The project of the Park of Malaga was to rehabilitate the lateral spaces of the Paseo del Parque, the organization of the environment, the recovery of the flora and structure of the Park, as well to construct a solution for problems of mobility. (Ref. 1). Recovery of Vegetation of the park, its original layout, and its scientific character of garden Botanical and species acclimatization were central aims of the project (Ref 1).
Nature Oasis Auwiesen
The project of Nature Oasis Auwiesen is creating new habitats for animals and plants in Stuttgart. The project is one of a total of six “Neckar pearls” that are to be completed by 2022 as part of the Neckar Landscape Park master plan in Stuttgart. In the project with a predominantly ecological focus, grassland in the Neckaraue near the Aubrücke is to be transformed into a near‐natural, ecologically valuable wetland biotope. In the course of straightening the Neckar, the wet and floodplain biotopes that were typical and widespread in the floodplains have been lost. The aim of the project is to restore these habitats for animals and plants, which have become very rare today. A network of marshes, water surfaces, islands, and bushes is to be created in the district of Hofen. On an area previously used as grassland, new habitats will be created for rare animals and plants, which are dependent on water areas. Initially, the planned implementation time was 2016-2022, but now it has been delayed and is expected to start by the end of 2021. (2, 7).
Shore Park Austraße
On November 5, 2019, the Committee for Urban Development and Technology passed the building decision for the riverside park Austraße - Neckarterrassen. To the north of Münster, the Neckar has cut deeply into the shell limestone and describes a wide arc on the Prallufer. There is little space between the cliff and the river - that is what makes this place so special. This is where the Austraße riverside park is being built with the elements Freienstein water playground (element 1), Neckarterrassen and Tapach-Link (element 2) as well as Austraße, Neckarufer and Neckarstrand (element 3). The first component has already been implemented: children will find their favorite spot on the Freienstein water playground south of the Max-Eyth-Steg. Students from the Elise von König School in Münster contributed their ideas as part of a child participation program. With the second component and its sub-projects “Tapach-Link” and “Neckarterrassen”, there are beautiful prospects for Münster: Those who have overcome the relay to the Neckarterrassen can rest in the shade and let their eyes wander up and down the Neckar. The third component of the Austraße riverside park - in addition to the Freienstein water playground, Neckarterrassen and Tapach-Link - focuses on the banks: podiums and platforms are planned on the river to linger while the freighters transport their goods on the water. Insects, small crabs and small fish find optimal living conditions on the renatured bank zones with stones and diverse flora. (1, 7).
Landscape Park Neckar
Landscape Park Neckar is a multi-place NBS intervention that is being realized along the banks of the river Neckar in 27 cities, including Stuttgart. Along the river axis, the free spaces between the dwelling buildings, industrial areas, and transport terminals are identified to be transformed into green areas, parks, and new recreational facilities. With this step-by-step approach, it succeeds in regenerating green areas for natural and social functions and helps drawing attention to the diverse benefits of Green Infrastructure. There are now eight master plans for the different landscape areas, which fit together like pieces of a puzzle to form the Stuttgart Region Landscape Park. Each sub-concept is tailored to the characteristic conditions. Since 2005 the Verband Region Stuttgart has been calling on cities and municipalities to submit project ideas. From this, the projects are selected in a competition in which the region pays up to 50 per cent of the costs. In this way, total investments in the Stuttgart Region Landscape Park of around 45 million euros have been triggered in recent years and around 200 projects have been co-financed by the region. The redevelopment of the landscape is in the ongoing phase. (ref. 1, 2, 7).
Ticinello Agrarian Park
The City of Milan intends to carry out a functional intervention in the valley of Ticinello for the strengthening of the environmental matrix and of the structural characteristics aimed at improving the ecological connection. The project, which aims to contribute to the valorisation, strengthening and conservation of the natural heritage, as well as expand local biodiversity, through the realization of terrestrial and aquatic ecosystems, is necessary for the realization, development and enhancement of large-scale ecological corridors already identified by the instruments of territorial planning (1).
Navile Riverbank Park
The project provides some improvements in the first part of the itinerary of the Navile river. In particular, it focuses on the restoration of the green system and the recovery of historical-architectural components in the area stretching between the Park of Villa Angeletti, the ancient village of Corticella and the municipality of Castel Maggiore. Restoring the route along the canal is the first step in an ambitious retraining hypothesis that sees Navile and its rich cultural and environmental heritage as the privileged axis for the recovery and development of the adjacent urban area (1).
Plantation of 4 trees by children
Four hackberry trees were planted in the courtyard of the social center "La Grande Bastide". Children were involved with the support of the association "Aux Actes Citoyens" (in english"Act Citizens"). The planting of the 4 trees by the children was done with the support of animators/leaders (who work at the Social Center and animate diverse activities at the center), Karine Lurcin, president of the association "Aux Acts Citizens" as well as several members of the association. (Ref. 1). The Social Center of the "Grande Bastide"(non-governmental organization) was behind the idea, stating that: "It is the idea of the center to have the children do the planting. We will surely be inspired by it for future actions", and, "from today, [the children] will always associate the earth with a particular and positive emotion: pleasure" (Ref. 1).
Revitalization of the Saski Garden in Lublin
The revitalization of the Saski Garden in Lublin in 2013 restored this space of local heritage historic character and cultural significance. Revitalization works included: cleaning and maintenance of existing trees and plants, planting extensive greenery, ICCTV and open access to wi-fi in the area of a renovated amphitheatre, revitalization of walking paths and ponds, small architectural elements like benches and a playground, and rainwater sewage system and a fountain [1,3,7].

