Grass

The 18 km long Rheindorfer stream flowing into the Rhine has faced increased urbanization, industrial activity and surface sealing over the last decades of the 20th century. As a result, numerous interventions were made to its original structure, such as the creation of a concrete bed for the stream and the straightening of the stream course. Meanwhile, an increasing amount of pressure was put on its water carrying capacity. In order to improve the flood retention capacity of the stream, the renaturalization project of the stream was executed in some parts of the water body. The project aims were 1) to restore the natural course of the stream and the state of the riverbeds, thus enhancing the stream's capacity to buffer floods, 2) restore the natural biodiversity of the floodplain and 3) to create a recreational area for locals (1,2).

‘Odla i stan’ aims to spread and develop urban farming in a long-term and sustainable manner with residents, associations, property owners and city administrations. The company also works with educational farming at schools and in Malmö Museums (Malmö Museer). Furthermore, “urban farming is an excellent method for increasing social community while providing self-produced food. ‘Odla i stan’ works to organize and coordinate organic farming in the urban environment.” This is done by only working with organic methods and trying to use only local resources.
(ref. 1, 3)

The rooftop garden of Nádor 15 was implemented as part of the sustainable campus development strategy of the Central European University. It contains a community garden that is managed by the CEU community, intensive green roofs and green walls as well. The rooftop garden also collects water for it's automatic irrigation system and supports biodiversity with bat shelters, bee hotels and birdhouses. (Reference 1)

The project refers to the development of a vacant plot to create a social garden. Activities and plans implemented included: planting greenery, creating flower meadows and flowerbeds, common flowers planting by citizens, common vegetable growing area and a greenhouse, recreational area (hammock, trampolines, field games, sun loungers and sofas for recreation), cultural zone (outdoor cinema, exhibition space), workshop area (for artistic, ecological and sports workshops), canteen area (open-air kitchen, outdoor bar, communal dining space). The garden was open for the public between 2016 and 2018.(1)(4)

With its parking areas, ponds, the Lutter stream, playground facilities, walking and jogging paths, the green corridor of Bielefeld, called Luttergrünzug offers recreation opportunity to around 36, 000 people, living in the surrounding areas. As a link between the eastern city center and the district of Heepen, it also enables walking and cycling routes for commuting and shopping away from the busy streets of the city (7). However, the green corridor has been showing some structural and functional defects such as the silting up of the ponds, conflicts between pedestrians and cyclists and the increasing overgrowth of the green belt (8). In order to solve these problems, the renovation and redesign of the Green Corridor was proposed. The regeneration project addresses different needs and requirements of the municipality, namely providing the comfortable infrastructure for pedestrians and cyclists, and the increase of attractiveness of the neighbouring residential areas. In the planning process, special attention was paid to the improvement of the draining system and the reservoirs of the area that will protect the Belt from flooding. (8)

Two regeneration plans were developed with citizens' involvement and presented to the political committee. In 2017, the implementation of the "smaller" variant was voted for, which was already presented in the first citizens' workshop (1, 4).

The first stage of the investment: Building an urban park in the city area where there is a lack of green recreational spaces for the citizens. The park is to be built on the undeveloped ground. The initiative involves cleaning the area, planting greenery, purification and regulation of the watercourse Warszowiec and building stone stream edges, building the bike and running paths, 2 playgrounds for various age groups, open-air gym, and a multifunctional field for basketball, volleyball, tennis and table tennis (planned). The project is supplemented with the so-called small architecture including benches, rubbish bins, bicycle racks, tables and bowers [1,2]. The second stage: executing the planned multifunctional sports field and building a so-called physical activity square with a wooden platform, wooden pergola by the stream. A fence around the playground is built and new lighting and monitoring systems introduced. The second stage assumes management and maintenance of the green areas too [5,6].

Revitalization of the Brodowski Pond and its surroundings that include: revitalization of the pond itself, modernization of the viewpoints, building alleys, new lighting system, senior corner, playground, gym, greenery, recreational areas and a dog run. The justification for the project emphasizes revitalization of the area, improving its functionality and usefulness as well as aesthetics while preserving the terrain and raising the importance of the pond as a public space of a city of particular aesthetic values. (1)(2)

The BiodiverCity-project aimed to develop products, services and processes which support and enhance the city’s biodiversity and thus contribute to a vision of a green, attractive and healthy city (ref. 1). The project had been divided in three steps, step 1 involving preliminary studies and step 2 was practical work for two years. During step 2 different cases were identified to test new ways to e.g. increase the city's biodiversity. Step 3 included spreading to other sectors through seminars, education and exhibition activities. It also included the commercialization of green solutions (ref. 2).

The landscape in the Bielefeld agglomeration is exposed to stress from high settlement pressure and expansion of the infrastructure as well as in parts of intensive agricultural use (2). Since 2003, the Senne and neighbouring areas of the Teutoburg Forest which is protected under the Europe-wide protected area system, Natura 2000, become part of the funding program of the Federal Agency for Nature Conservation (BfN) and become one of Agency's Large-scale nature conservation projects (NGP) (2, 5,13).
The project area lies in the transition area between two major German landscapes: the Senne as part of the north-west German lowlands and the Teutoburg Forest as part of the Central European low mountain range. The juxtaposition and close interlocking of numerous habitats such as species-rich beech forests, remains of acidic deciduous mixed forests, dry and humid heathland or natural sandy streams form the basis for diverse flora and fauna. Many of the numerous rare plant and animal species are rarely found in North Rhine-Westphalia outside of the NGP area (13).

The natural area complex Senne and Teutoburg Forest was declared by the Federal Agency for Nature Conservation (BfN) to be one of the 30 hotspots of biological diversity in Germany due to its nationwide uniqueness ( overview map ). These “Treasure Chests of Nature” (BfN 2015) distinguish regions in Germany that have a particularly high density and diversity of characteristic habitats, species and populations.(13)
The NGP was funded by the Federal Republic of Germany, the State of North Rhine-Westphalia with contribution of participating municipalities and the North Rhine-Westphalia Foundation (13). The Teutoburg Forest / Eggegebirge Nature Park is also sponsoring the project (12).

Agora Budapest is a large scale urban redevelopment project initiated by private investors. Besides implementing five high-quality office buildings, the investors aim at creating green public spaces the size of 7000 square metres in order to provide a healthy and vivid working environment. The green surface involves green roofs, parks and tree lines, all which will be irrigated using collected rainwater. The solar panels on the roofs of the buildings are also part of the sustainability plans of the investors. (Ref 1. and Ref 4.)