Green densification model

As part of the title Green Capital of Europe, Ljubljana planted the first public orchard. The public orchard is open to citizens and visitors of the city, where fruits are available from mid-summer to late autumn. One part of the orchard includes a plantation of old varieties of apple, plum and pear, while the other includes trees species little known. The public orchard and nectar garden are intended for residents, passersby, volunteers, groups of pre-schoolers, families and educational organisations. The nectar garden is enriched by an innovative didactic adventure trail that winds around the nectar garden. Next to the nectar garden is a hotel for insects and bird feeder intended to promote biodiversity and raise awareness about nature conservation. Nearby is also a renovated playground for children. Three such orchards have been created in Rakovi jelši, Savski naselj and Puhtejeva ulica. The arrangement of the public orchard is one of the goals set in the environmental protection program for the City of Ljubljana 2014 - 2020. (1, 2 and 3)

Göteborg is in need to strengthen the conditions for those who today, to a certain extent, rely on food production or farming. Also, the demand for locally produced and non-toxic food is increasing by Swedish consumers. Green Production aims to create opportunities for urban agriculture that is financially viable within and around the city. Green Production will build knowledge and conduct research by bringing together key stakeholders around a number of focus-projects within the area. Green Production aims to create opportunities for urban agriculture that is financially viable within and around the city. Green Production will build knowledge and conduct research by bringing together key stakeholders around a number of focus-projects within the area. The original idea regarding these focus-projects is that they either will be based in a specific spot and, for example, linking new technologies with new jobs, or involve a process where entrepreneurs meet landowners, consumers, wholesalers, etc. The goal of these focus-projects, in addition, to gather knowledge and create new contacts and networks, is that they may develop a number of innovative urban agriculture projects and business ideas in and around the city. (Ref. 1, 3, 4)

The action proposed by the Municipal Technical Service of Parks and Gardens at the Department of the Environment, aims at the regeneration of the forest with the repopulation of pines of different ages, to imitate a mountain in a natural state with the plantation of the Cartagena Cypress and Tetraclinex articulata, which has a good adaptation to the environment. Several plots (Plots 3, 5, 6, 8 and 12 of the project) have been repopulated with shrubs and trees such as cypress, esparto, rosemary, tomillos, lentiscos, tetraclinex and palmito, in the solana area, deciduous and riparian species, and to other silvicultural treatments, which increases the variety of existing vegetation. (Ref. 1) In addition, the project contemplates the construction of two viewpoints (Ref 1, 3). A new irrigation system is put in place for the re-use of water for sustainable use and water savings. (Ref. 7)

The recreational and educational centre (RIC) area along the Sava river stretches from Tomačevo to Sneberje and totals 144,618 sqm. The area is intended for children, people with disabilities and other residents of the region, visitors and tourists. The intervention made this once degraded, illegal dumping area attractive for those seeking recreation, visitors and tourists, also in the evening as street lighting was installed along the path powered by photovoltaics. A large children's playground offers free socializing and children can develop their basic motor skills, which is exceptionally important in life's early years. (1)

"After decades of abandonment and deterioration, Zaragoza took advantage of the opportunity of the Expo 2008, to form a new relationship with the Ebro River, transforming empty, inaccessible, degraded and unsafe banks into places of encounter and representation. Public works on the Ebro were designed as structures with various functions." (Ref.3)

FutureBuilt is a program running between 2010-2020, with expectations to continue from 2021-2030 (Ref. 9). One of its projects consists of the construction of a large greenhouse in between a housing complex in an old industrial building. The greenhouse will be the centre of the building and provide a Mediterranean climate with a lot of green facades, green roofs and indoor vertical greeneries (Ref. 1). The nave of the complex will become a greenhouse and the natural gathering point for the residents. (Ref. 1, 3)

Since 2012, Gothenburg has worked with the Rivercity, an urban development project in the city centre, that uses different ways of working, with innovation at the core of its urban transformations projects. Frihamnen is one of the RiverCity Göteborg most vital projects which aims to unify the centre of Göteborg across the river and out towards Kvillebäcken, Lindholmen and Backaplan (districts). The environmental goal is to create climate adaptation by flood control & stormwater management. Additional benefits of the project are to make the area more attractive and create recreational areas. As part of the BEGIN project, the Frihamnen project aims to use 'blue-green' solutions (i.e. Blue Green Infrastructure through Social Innovation). (Ref. 1, 2)

This underground garage in Alicante, Spain, received a green roof makeover according to Alicante's climatological conditions (Ref. 2). Urbanarbolismo, a Spanish firm with a strong focus on vegetation, designed and installed this succulent garden in the courtyard of the garage. The garden is very low-maintenance and doesn't require any irrigation whatsoever. Further, with every passing year, it will grow more and more beautiful as the plants grow larger and take root. The Urbanarbolismo Benisaudet IVVSA parking garage was created by this Spanish design firm with the purpose of "keep[ing] the underground lot cooler, as well as improv[ing] its air quality." (Ref. 1)

With the "Green River" for Milan, the design team coordinated by Stefano Boeri has proposed an urban reforestation project that aims to realise on 90% of the seven abandoned railways a continuous system of parks, woods, oases, orchards and gardens for public use, linked between them by green corridors and bicycles made on the railroad tracks. (1, 3 and 4).

This project focuses on the development of environmental regulations stimulating the connection of existing green areas and developing new ones in the urban area of Rome to stimulate biodiversity by rehabilitating 73% of free/derelict areas. This was done to guarantee an integrated protection of already existing areas as well as restoration of green and blue landscapes (1). The Ecologic Network is still ongoing and provides specific limitations to any new infrastructural project to make sure specific environmental standards are respected (3).